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===============
Release Notes
===============
v0.73
-----
This release, the first development release after emperor, includes
many bug fixes and a few additional pieces of functionality. The
first batch of larger changes will be landing in the next version,
v0.74.
Upgrading
~~~~~~~~~
- As part of fix for #6796, 'ceph osd pool set <pool> <var> <arg>' now
receives <arg> as an integer instead of a string. This affects how
'hashpspool' flag is set/unset: instead of 'true' or 'false', it now
must be '0' or '1'.
- The behavior of the CRUSH 'indep' choose mode has been changed. No
ceph cluster should have been using this behavior unless someone has
manually extracted a crush map, modified a CRUSH rule to replace
'firstn' with 'indep', recompiled, and reinjected the new map into
the cluster. If the 'indep' mode is currently in use on a cluster,
the rule should be modified to use 'firstn' instead, and the
administrator should wait until any data movement completes before
upgrading.
- The 'osd dump' command now dumps pool snaps as an array instead of an
object.
Notable Changes:
~~~~~~~~~~~~~~~~
* ceph-crush-location: new hook for setting CRUSH location of osd daemons on start
* ceph-kvstore-tool: expanded command set and capabilities (Joao Eduardo Luis)
* ceph.spec: fix build dependency (Loic Dachary)
* common: fix aligned buffer allocation (Loic Dachary)
* doc: many many install doc improvements (John Wilkins)
* mds: fix readdir end check (Zheng Yan)
* mds: update old-format backtraces opportunistically (Zheng Yan)
* misc cleanups from coverity (Xing Lin)
* misc portability fixes (Noah Watkins, Christophe Courtaut, Alan Somers, huanjun)
* mon: 'osd dump' dumps pool snaps as array, not object (Dan Mick)
* mon: allow debug quorum_{enter,exit} commands via admin socket
* mon: prevent extreme changes in pool pg_num (Greg Farnum)
* mon: take 'osd pool set ...' value as an int, not string (Joao Eduardo Luis)
* mon: trim MDSMaps (Joao Eduardo Luis)
* osd: fix object_info_t encoding bug from emperor (****
* rbd: add 'rbdmap' init script for mapping rbd images on book (Adam Twardowski)
* rgw: add 'status' command to sysvinit script (David Moreau Simard)
* rgw: fix error setting empty owner on ACLs (Yehuda Sadeh)
* rgw: optionally defer to bucket ACLs instead of object ACLs (Liam Monahan)
* rgw: support for password (instead of admin token) for keystone authentication (Christophe Courtaut)
* sysvinit, upstart: prevent both init systems from starting the same daemons (Josh Durgin)
v0.72.1 Emperor
---------------
Important Note
~~~~~~~~~~~~~~
When you are upgrading from Dumpling to Emperor, do not run any of the
"ceph osd pool set" commands while your monitors are running separate versions.
Doing so could result in inadvertently changing cluster configuration settings
that exhaust compute resources in your OSDs.
Changes
~~~~~~~
* osd: fix upgrade bug #6761
* ceph_filestore_tool: introduced tool to repair errors caused by #6761
This release addresses issue #6761. Upgrading to Emperor can cause
reads to begin returning ENFILE (too many open files). v0.72.1 fixes
that upgrade issue and adds a tool ceph_filestore_tool to repair osd
stores affected by this bug.
To repair a cluster affected by this bug:
#. Upgrade all osd machines to v0.72.1
#. Install the ceph-test package on each osd machine to get ceph_filestore_tool
#. Stop all osd processes
#. To see all lost objects, run the following on each osd with the osd stopped and
the osd data directory mounted::
ceph_filestore_tool --list-lost-objects=true --filestore-path=<path-to-osd-filestore> --journal-path=<path-to-osd-journal>
#. To fix all lost objects, run the following on each osd with the
osd stopped and the osd data directory mounted::
ceph_filestore_tool --fix-lost-objects=true --list-lost-objects=true --filestore-path=<path-to-osd-filestore> --journal-path=<path-to-osd-journal>
#. Once lost objects have been repaired on each osd, you can restart
the cluster.
Note, the ceph_filestore_tool performs a scan of all objects on the
osd and may take some time.
v0.72 Emperor
-------------
This is the fifth major release of Ceph, the fourth since adopting a
3-month development cycle. This release brings several new features,
including multi-datacenter replication for the radosgw, improved
usability, and lands a lot of incremental performance and internal
refactoring work to support upcoming features in Firefly.
Important Note
~~~~~~~~~~~~~~
When you are upgrading from Dumpling to Emperor, do not run any of the
"ceph osd pool set" commands while your monitors are running separate versions.
Doing so could result in inadvertently changing cluster configuration settings
that exhaust compute resources in your OSDs.
Highlights
~~~~~~~~~~
* common: improved crc32c performance
* librados: new example client and class code
* mds: many bug fixes and stability improvements
* mon: health warnings when pool pg_num values are not reasonable
* mon: per-pool performance stats
* osd, librados: new object copy primitives
* osd: improved interaction with backend file system to reduce latency
* osd: much internal refactoring to support ongoing erasure coding and tiering support
* rgw: bucket quotas
* rgw: improved CORS support
* rgw: performance improvements
* rgw: validate S3 tokens against Keystone
Coincident with core Ceph, the Emperor release also brings:
* radosgw-agent: support for multi-datacenter replication for disaster recovery
* tgt: improved support for iSCSI via upstream tgt
Packages for both are available on ceph.com.
Upgrade sequencing
~~~~~~~~~~~~~~~~~~
There are no specific upgrade restrictions on the order or sequence of
upgrading from 0.67.x Dumpling. However, you cannot run any of the
"ceph osd pool set" commands while your monitors are running separate versions.
Doing so could result in inadvertently changing cluster configuration settings
and exhausting compute resources in your OSDs.
It is also possible to do a rolling upgrade from 0.61.x Cuttlefish,
but there are ordering restrictions. (This is the same set of
restrictions for Cuttlefish to Dumpling.)
#. Upgrade ceph-common on all nodes that will use the command line 'ceph' utility.
#. Upgrade all monitors (upgrade ceph package, restart ceph-mon
daemons). This can happen one daemon or host at a time. Note that
because cuttlefish and dumpling monitors can't talk to each other,
all monitors should be upgraded in relatively short succession to
minimize the risk that an a untimely failure will reduce
availability.
#. Upgrade all osds (upgrade ceph package, restart ceph-osd daemons).
This can happen one daemon or host at a time.
#. Upgrade radosgw (upgrade radosgw package, restart radosgw daemons).
Upgrading from v0.71
~~~~~~~~~~~~~~~~~~~~
* ceph-fuse and radosgw now use the same default values for the admin
socket and log file paths that the other daemons (ceph-osd,
ceph-mon, etc.) do. If you run these daemons as non-root, you may
need to adjust your ceph.conf to disable these options or to adjust
the permissions on /var/run/ceph and /var/log/ceph.
Upgrading from v0.67 Dumpling
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* ceph-fuse and radosgw now use the same default values for the admin
socket and log file paths that the other daemons (ceph-osd,
ceph-mon, etc.) do. If you run these daemons as non-root, you may
need to adjust your ceph.conf to disable these options or to adjust
the permissions on /var/run/ceph and /var/log/ceph.
* The MDS now disallows snapshots by default as they are not
considered stable. The command 'ceph mds set allow_snaps' will
enable them.
* For clusters that were created before v0.44 (pre-argonaut, Spring
2012) and store radosgw data, the auto-upgrade from TMAP to OMAP
objects has been disabled. Before upgrading, make sure that any
buckets created on pre-argonaut releases have been modified (e.g.,
by PUTing and then DELETEing an object from each bucket). Any
cluster created with argonaut (v0.48) or a later release or not
using radosgw never relied on the automatic conversion and is not
affected by this change.
* Any direct users of the 'tmap' portion of the librados API should be
aware that the automatic tmap -> omap conversion functionality has
been removed.
* Most output that used K or KB (e.g., for kilobyte) now uses a
lower-case k to match the official SI convention. Any scripts that
parse output and check for an upper-case K will need to be modified.
* librados::Rados::pool_create_async() and librados::Rados::pool_delete_async()
don't drop a reference to the completion object on error, caller needs to take
care of that. This has never really worked correctly and we were leaking an
object
* 'ceph osd crush set <id> <weight> <loc..>' no longer adds the osd to the
specified location, as that's a job for 'ceph osd crush add'. It will
however continue to work just the same as long as the osd already exists
in the crush map.
* The OSD now enforces that class write methods cannot both mutate an
object and return data. The rbd.assign_bid method, the lone
offender, has been removed. This breaks compatibility with
pre-bobtail librbd clients by preventing them from creating new
images.
* librados now returns on commit instead of ack for synchronous calls.
This is a bit safer in the case where both OSDs and the client crash, and
is probably how it should have been acting from the beginning. Users are
unlikely to notice but it could result in lower performance in some
circumstances. Those who care should switch to using the async interfaces,
which let you specify safety semantics precisely.
* The C++ librados AioComplete::get_version() method was incorrectly
returning an int (usually 32-bits). To avoid breaking library
compatibility, a get_version64() method is added that returns the
full-width value. The old method is deprecated and will be removed
in a future release. Users of the C++ librados API that make use of
the get_version() method should modify their code to avoid getting a
value that is truncated from 64 to to 32 bits.
Notable Changes since v0.71
~~~~~~~~~~~~~~~~~~~~~~~~~~~
* build: fix [/usr]/sbin locations (Alan Somers)
* ceph-fuse, radosgw: enable admin socket and logging by default
* ceph: make -h behave when monitors are down
* common: cache crc32c values where possible
* common: fix looping on *BSD (Alan Somers)
* librados, mon: ability to query/ping out-of-quorum monitor status (Joao Luis)
* librbd python bindings: fix parent image name limit (Josh Durgin)
* mds: avoid leaking objects when deleting truncated files (Yan, Zheng)
* mds: fix F_GETLK (Yan, Zheng)
* mds: fix many bugs with stray (unlinked) inodes (Yan, Zheng)
* mds: fix many directory fragmentation bugs (Yan, Zheng)
* mon: allow (un)setting HASHPSPOOL flag on existing pools (Joao Luis)
* mon: make 'osd pool rename' idempotent (Joao Luis)
* osd: COPY_GET on-wire encoding improvements (Greg Farnum)
* osd: bloom_filter encodability, fixes, cleanups (Loic Dachary, Sage Weil)
* osd: fix handling of racing read vs write (Samuel Just)
* osd: reduce blocking on backing fs (Samuel Just)
* radosgw-agent: multi-region replication/DR
* rgw: fix/improve swift COPY support (Yehuda Sadeh)
* rgw: misc fixes to support DR (Josh Durgin, Yehuda Sadeh)
* rgw: per-bucket quota (Yehuda Sadeh)
* rpm: fix junit dependencies (Alan Grosskurth)
Notable Changes since v0.67 Dumpling
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* build cleanly under clang (Christophe Courtaut)
* build: Makefile refactor (Roald J. van Loon)
* build: fix [/usr]/sbin locations (Alan Somers)
* ceph-disk: fix journal preallocation
* ceph-fuse, radosgw: enable admin socket and logging by default
* ceph-fuse: fix problem with readahead vs truncate race (Yan, Zheng)
* ceph-fuse: trim deleted inodes from cache (Yan, Zheng)
* ceph-fuse: use newer fuse api (Jianpeng Ma)
* ceph-kvstore-tool: new tool for working with leveldb (copy, crc) (Joao Luis)
* ceph-post-file: new command to easily share logs or other files with ceph devs
* ceph: improve parsing of CEPH_ARGS (Benoit Knecht)
* ceph: make -h behave when monitors are down
* ceph: parse CEPH_ARGS env variable
* common: bloom_filter improvements, cleanups
* common: cache crc32c values where possible
* common: correct SI is kB not KB (Dan Mick)
* common: fix looping on *BSD (Alan Somers)
* common: migrate SharedPtrRegistry to use boost::shared_ptr<> (Loic Dachary)
* common: misc portability fixes (Noah Watkins)
* crc32c: fix optimized crc32c code (it now detects arch support properly)
* crc32c: improved intel-optimized crc32c support (~8x faster on my laptop!)
* crush: fix name caching
* doc: erasure coding design notes (Loic Dachary)
* hadoop: removed old version of shim to avoid confusing users (Noah Watkins)
* librados, mon: ability to query/ping out-of-quorum monitor status (Joao Luis)
* librados: fix async aio completion wakeup
* librados: fix installed header #includes (Dan Mick)
* librados: get_version64() method for C++ API
* librados: hello_world example (Greg Farnum)
* librados: sync calls now return on commit (instead of ack) (Greg Farnum)
* librbd python bindings: fix parent image name limit (Josh Durgin)
* librbd, ceph-fuse: avoid some sources of ceph-fuse, rbd cache stalls
* mds: avoid leaking objects when deleting truncated files (Yan, Zheng)
* mds: fix F_GETLK (Yan, Zheng)
* mds: fix LOOKUPSNAP bug
* mds: fix heap profiler commands (Joao Luis)
* mds: fix locking deadlock (David Disseldorp)
* mds: fix many bugs with stray (unlinked) inodes (Yan, Zheng)
* mds: fix many directory fragmentation bugs (Yan, Zheng)
* mds: fix mds rejoin with legacy parent backpointer xattrs (Alexandre Oliva)
* mds: fix rare restart/failure race during fs creation
* mds: fix standby-replay when we fall behind (Yan, Zheng)
* mds: fix stray directory purging (Yan, Zheng)
* mds: notify clients about deleted files (so they can release from their cache) (Yan, Zheng)
* mds: several bug fixes with clustered mds (Yan, Zheng)
* mon, osd: improve osdmap trimming logic (Samuel Just)
* mon, osd: initial CLI for configuring tiering
* mon: a few 'ceph mon add' races fixed (command is now idempotent) (Joao Luis)
* mon: allow (un)setting HASHPSPOOL flag on existing pools (Joao Luis)
* mon: allow cap strings with . to be unquoted
* mon: allow logging level of cluster log (/var/log/ceph/ceph.log) to be adjusted
* mon: avoid rewriting full osdmaps on restart (Joao Luis)
* mon: continue to discover peer addr info during election phase
* mon: disallow CephFS snapshots until 'ceph mds set allow_new_snaps' (Greg Farnum)
* mon: do not expose uncommitted state from 'osd crush {add,set} ...' (Joao Luis)
* mon: fix 'ceph osd crush reweight ...' (Joao Luis)
* mon: fix 'osd crush move ...' command for buckets (Joao Luis)
* mon: fix byte counts (off by factor of 4) (Dan Mick, Joao Luis)
* mon: fix paxos corner case
* mon: kv properties for pools to support EC (Loic Dachary)
* mon: make 'osd pool rename' idempotent (Joao Luis)
* mon: modify 'auth add' semantics to make a bit more sense (Joao Luis)
* mon: new 'osd perf' command to dump recent performance information (Samuel Just)
* mon: new and improved 'ceph -s' or 'ceph status' command (more info, easier to read)
* mon: some auth check cleanups (Joao Luis)
* mon: track per-pool stats (Joao Luis)
* mon: warn about pools with bad pg_num
* mon: warn when mon data stores grow very large (Joao Luis)
* monc: fix small memory leak
* new wireshark patches pulled into the tree (Kevin Jones)
* objecter, librados: redirect requests based on cache tier config
* objecter: fix possible hang when cluster is unpaused (Josh Durgin)
* osd, librados: add new COPY_FROM rados operation
* osd, librados: add new COPY_GET rados operations (used by COPY_FROM)
* osd: 'osd recover clone overlap limit' option to limit cloning during recovery (Samuel Just)
* osd: COPY_GET on-wire encoding improvements (Greg Farnum)
* osd: add 'osd heartbeat min healthy ratio' configurable (was hard-coded at 33%)
* osd: add option to disable pg log debug code (which burns CPU)
* osd: allow cap strings with . to be unquoted
* osd: automatically detect proper xattr limits (David Zafman)
* osd: avoid extra copy in erasure coding reference implementation (Loic Dachary)
* osd: basic cache pool redirects (Greg Farnum)
* osd: basic whiteout, dirty flag support (not yet used)
* osd: bloom_filter encodability, fixes, cleanups (Loic Dachary, Sage Weil)
* osd: clean up and generalize copy-from code (Greg Farnum)
* osd: cls_hello OSD class example
* osd: erasure coding doc updates (Loic Dachary)
* osd: erasure coding plugin infrastructure, tests (Loic Dachary)
* osd: experiemental support for ZFS (zfsonlinux.org) (Yan, Zheng)
* osd: fix RWORDER flags
* osd: fix exponential backoff of slow request warnings (Loic Dachary)
* osd: fix handling of racing read vs write (Samuel Just)
* osd: fix version value returned by various operations (Greg Farnum)
* osd: generalized temp object infrastructure
* osd: ghobject_t infrastructure for EC (David Zafman)
* osd: improvements for compatset support and storage (David Zafman)
* osd: infrastructure to copy objects from other OSDs
* osd: instrument peering states (David Zafman)
* osd: misc copy-from improvements
* osd: opportunistic crc checking on stored data (off by default)
* osd: properly enforce RD/WR flags for rados classes
* osd: reduce blocking on backing fs (Samuel Just)
* osd: refactor recovery using PGBackend (Samuel Just)
* osd: remove old magical tmap->omap conversion
* osd: remove old pg log on upgrade (Samuel Just)
* osd: revert xattr size limit (fixes large rgw uploads)
* osd: use fdatasync(2) instead of fsync(2) to improve performance (Sam Just)
* pybind: fix blacklisting nonce (Loic Dachary)
* radosgw-agent: multi-region replication/DR
* rgw: complete in-progress requests before shutting down
* rgw: default log level is now more reasonable (Yehuda Sadeh)
* rgw: fix S3 auth with response-* query string params (Sylvain Munaut, Yehuda Sadeh)
* rgw: fix a few minor memory leaks (Yehuda Sadeh)
* rgw: fix acl group check (Yehuda Sadeh)
* rgw: fix inefficient use of std::list::size() (Yehuda Sadeh)
* rgw: fix major CPU utilization bug with internal caching (Yehuda Sadeh, Mark Nelson)
* rgw: fix ordering of write operations (preventing data loss on crash) (Yehuda Sadeh)
* rgw: fix ordering of writes for mulitpart upload (Yehuda Sadeh)
* rgw: fix various CORS bugs (Yehuda Sadeh)
* rgw: fix/improve swift COPY support (Yehuda Sadeh)
* rgw: improve help output (Christophe Courtaut)
* rgw: misc fixes to support DR (Josh Durgin, Yehuda Sadeh)
* rgw: per-bucket quota (Yehuda Sadeh)
* rgw: validate S3 tokens against keystone (Roald J. van Loon)
* rgw: wildcard support for keystone roles (Christophe Courtaut)
* rpm: fix junit dependencies (Alan Grosskurth)
* sysvinit radosgw: fix status return code (Danny Al-Gaaf)
* sysvinit rbdmap: fix error 'service rbdmap stop' (Laurent Barbe)
* sysvinit: add condrestart command (Dan van der Ster)
* sysvinit: fix shutdown order (mons last) (Alfredo Deza)
v0.71
-----
This development release includes a significant amount of new code and
refactoring, as well as a lot of preliminary functionality that will be needed
for erasure coding and tiering support. There are also several significant
patch sets improving this with the MDS.
Upgrading
~~~~~~~~~
* The MDS now disallows snapshots by default as they are not
considered stable. The command 'ceph mds set allow_snaps' will
enable them.
* For clusters that were created before v0.44 (pre-argonaut, Spring
2012) and store radosgw data, the auto-upgrade from TMAP to OMAP
objects has been disabled. Before upgrading, make sure that any
buckets created on pre-argonaut releases have been modified (e.g.,
by PUTing and then DELETEing an object from each bucket). Any
cluster created with argonaut (v0.48) or a later release or not
using radosgw never relied on the automatic conversion and is not
affected by this change.
* Any direct users of the 'tmap' portion of the librados API should be
aware that the automatic tmap -> omap conversion functionality has
been removed.
* Most output that used K or KB (e.g., for kilobyte) now uses a
lower-case k to match the official SI convention. Any scripts that
parse output and check for an upper-case K will need to be modified.
Notable Changes
~~~~~~~~~~~~~~~
* build: Makefile refactor (Roald J. van Loon)
* ceph-disk: fix journal preallocation
* ceph-fuse: trim deleted inodes from cache (Yan, Zheng)
* ceph-fuse: use newer fuse api (Jianpeng Ma)
* ceph-kvstore-tool: new tool for working with leveldb (copy, crc) (Joao Luis)
* common: bloom_filter improvements, cleanups
* common: correct SI is kB not KB (Dan Mick)
* common: misc portability fixes (Noah Watkins)
* hadoop: removed old version of shim to avoid confusing users (Noah Watkins)
* librados: fix installed header #includes (Dan Mick)
* librbd, ceph-fuse: avoid some sources of ceph-fuse, rbd cache stalls
* mds: fix LOOKUPSNAP bug
* mds: fix standby-replay when we fall behind (Yan, Zheng)
* mds: fix stray directory purging (Yan, Zheng)
* mon: disallow CephFS snapshots until 'ceph mds set allow_new_snaps' (Greg Farnum)
* mon, osd: improve osdmap trimming logic (Samuel Just)
* mon: kv properties for pools to support EC (Loic Dachary)
* mon: some auth check cleanups (Joao Luis)
* mon: track per-pool stats (Joao Luis)
* mon: warn about pools with bad pg_num
* osd: automatically detect proper xattr limits (David Zafman)
* osd: avoid extra copy in erasure coding reference implementation (Loic Dachary)
* osd: basic cache pool redirects (Greg Farnum)
* osd: basic whiteout, dirty flag support (not yet used)
* osd: clean up and generalize copy-from code (Greg Farnum)
* osd: erasure coding doc updates (Loic Dachary)
* osd: erasure coding plugin infrastructure, tests (Loic Dachary)
* osd: fix RWORDER flags
* osd: fix exponential backoff of slow request warnings (Loic Dachary)
* osd: generalized temp object infrastructure
* osd: ghobject_t infrastructure for EC (David Zafman)
* osd: improvements for compatset support and storage (David Zafman)
* osd: misc copy-from improvements
* osd: opportunistic crc checking on stored data (off by default)
* osd: refactor recovery using PGBackend (Samuel Just)
* osd: remove old magical tmap->omap conversion
* pybind: fix blacklisting nonce (Loic Dachary)
* rgw: default log level is now more reasonable (Yehuda Sadeh)
* rgw: fix acl group check (Yehuda Sadeh)
* sysvinit: fix shutdown order (mons last) (Alfredo Deza)
v0.70
-----
Upgrading
~~~~~~~~~
* librados::Rados::pool_create_async() and librados::Rados::pool_delete_async()
don't drop a reference to the completion object on error, caller needs to take
care of that. This has never really worked correctly and we were leaking an
object
* 'ceph osd crush set <id> <weight> <loc..>' no longer adds the osd to the
specified location, as that's a job for 'ceph osd crush add'. It will
however continue to work just the same as long as the osd already exists
in the crush map.
Notable Changes
~~~~~~~~~~~~~~~
* mon: a few 'ceph mon add' races fixed (command is now idempotent) (Joao Luis)
* crush: fix name caching
* rgw: fix a few minor memory leaks (Yehuda Sadeh)
* ceph: improve parsing of CEPH_ARGS (Benoit Knecht)
* mon: avoid rewriting full osdmaps on restart (Joao Luis)
* crc32c: fix optimized crc32c code (it now detects arch support properly)
* mon: fix 'ceph osd crush reweight ...' (Joao Luis)
* osd: revert xattr size limit (fixes large rgw uploads)
* mds: fix heap profiler commands (Joao Luis)
* rgw: fix inefficient use of std::list::size() (Yehuda Sadeh)
v0.69
-----
Upgrading
~~~~~~~~~
* The sysvinit /etc/init.d/ceph script will, by default, update the
CRUSH location of an OSD when it starts. Previously, if the
monitors were not available, this command would hang indefinitely.
Now, that step will time out after 10 seconds and the ceph-osd daemon
will not be started.
* Users of the librados C++ API should replace users of get_version()
with get_version64() as the old method only returns a 32-bit value
for a 64-bit field. The existing 32-bit get_version() method is now
deprecated.
* The OSDs are now more picky that request payload match their
declared size. A write operation across N bytes that includes M
bytes of data will now be rejected. No known clients do this, but
the because the server-side behavior has changed it is possible that
an application misusing the interface may now get errors.
* The OSD now enforces that class write methods cannot both mutate an
object and return data. The rbd.assign_bid method, the lone
offender, has been removed. This breaks compatibility with
pre-bobtail librbd clients by preventing them from creating new
images.
* librados now returns on commit instead of ack for synchronous calls.
This is a bit safer in the case where both OSDs and the client crash, and
is probably how it should have been acting from the beginning. Users are
unlikely to notice but it could result in lower performance in some
circumstances. Those who care should switch to using the async interfaces,
which let you specify safety semantics precisely.
* The C++ librados AioComplete::get_version() method was incorrectly
returning an int (usually 32-bits). To avoid breaking library
compatibility, a get_version64() method is added that returns the
full-width value. The old method is deprecated and will be removed
in a future release. Users of the C++ librados API that make use of
the get_version() method should modify their code to avoid getting a
value that is truncated from 64 to to 32 bits.
Notable Changes
~~~~~~~~~~~~~~~
* build cleanly under clang (Christophe Courtaut)
* common: migrate SharedPtrRegistry to use boost::shared_ptr<> (Loic Dachary)
* doc: erasure coding design notes (Loic Dachary)
* improved intel-optimized crc32c support (~8x faster on my laptop!)
* librados: get_version64() method for C++ API
* mds: fix locking deadlock (David Disseldorp)
* mon, osd: initial CLI for configuring tiering
* mon: allow cap strings with . to be unquoted
* mon: continue to discover peer addr info during election phase
* mon: fix 'osd crush move ...' command for buckets (Joao Luis)
* mon: warn when mon data stores grow very large (Joao Luis)
* objecter, librados: redirect requests based on cache tier config
* osd, librados: add new COPY_FROM rados operation
* osd, librados: add new COPY_GET rados operations (used by COPY_FROM)
* osd: add 'osd heartbeat min healthy ratio' configurable (was hard-coded at 33%)
* osd: add option to disable pg log debug code (which burns CPU)
* osd: allow cap strings with . to be unquoted
* osd: fix version value returned by various operations (Greg Farnum)
* osd: infrastructure to copy objects from other OSDs
* osd: use fdatasync(2) instead of fsync(2) to improve performance (Sam Just)
* rgw: fix major CPU utilization bug with internal caching (Yehuda Sadeh, Mark Nelson)
* rgw: fix ordering of write operations (preventing data loss on crash) (Yehuda Sadeh)
* rgw: fix ordering of writes for mulitpart upload (Yehuda Sadeh)
* rgw: fix various CORS bugs (Yehuda Sadeh)
* rgw: improve help output (Christophe Courtaut)
* rgw: validate S3 tokens against keystone (Roald J. van Loon)
* rgw: wildcard support for keystone roles (Christophe Courtaut)
* sysvinit radosgw: fix status return code (Danny Al-Gaaf)
* sysvinit rbdmap: fix error 'service rbdmap stop' (Laurent Barbe)
v0.68
-----
Upgrading
~~~~~~~~~
* 'ceph osd crush set <id> <weight> <loc..>' no longer adds the osd to the
specified location, as that's a job for 'ceph osd crush add'. It will
however continue to work just the same as long as the osd already exists
in the crush map.
* The OSD now enforces that class write methods cannot both mutate an
object and return data. The rbd.assign_bid method, the lone
offender, has been removed. This breaks compatibility with
pre-bobtail librbd clients by preventing them from creating new
images.
* librados now returns on commit instead of ack for synchronous calls.
This is a bit safer in the case where both OSDs and the client crash, and
is probably how it should have been acting from the beginning. Users are
unlikely to notice but it could result in lower performance in some
circumstances. Those who care should switch to using the async interfaces,
which let you specify safety semantics precisely.
* The C++ librados AioComplete::get_version() method was incorrectly
returning an int (usually 32-bits). To avoid breaking library
compatibility, a get_version64() method is added that returns the
full-width value. The old method is deprecated and will be removed
in a future release. Users of the C++ librados API that make use of
the get_version() method should modify their code to avoid getting a
value that is truncated from 64 to to 32 bits.
Notable Changes
~~~~~~~~~~~~~~~
* ceph-fuse: fix problem with readahead vs truncate race (Yan, Zheng)
* ceph-post-file: new command to easily share logs or other files with ceph devs
* ceph: parse CEPH_ARGS env variable
* librados: fix async aio completion wakeup
* librados: hello_world example (Greg Farnum)
* librados: sync calls now return on commit (instead of ack) (Greg Farnum)
* mds: fix mds rejoin with legacy parent backpointer xattrs (Alexandre Oliva)
* mds: fix rare restart/failure race during fs creation
* mds: notify clients about deleted files (so they can release from their cache) (Yan, Zheng)
* mds: several bug fixes with clustered mds (Yan, Zheng)
* mon: allow logging level of cluster log (/var/log/ceph/ceph.log) to be adjusted
* mon: do not expose uncommitted state from 'osd crush {add,set} ...' (Joao Luis)
* mon: fix byte counts (off by factor of 4) (Dan Mick, Joao Luis)
* mon: fix paxos corner case
* mon: modify 'auth add' semantics to make a bit more sense (Joao Luis)
* mon: new 'osd perf' command to dump recent performance information (Samuel Just)
* mon: new and improved 'ceph -s' or 'ceph status' command (more info, easier to read)
* monc: fix small memory leak
* new wireshark patches pulled into the tree (Kevin Jones)
* objecter: fix possible hang when cluster is unpaused (Josh Durgin)
* osd: 'osd recover clone overlap limit' option to limit cloning during recovery (Samuel Just)
* osd: cls_hello OSD class example
* osd: experiemental support for ZFS (zfsonlinux.org) (Yan, Zheng)
* osd: instrument peering states (David Zafman)
* osd: properly enforce RD/WR flags for rados classes
* osd: remove old pg log on upgrade (Samuel Just)
* rgw: complete in-progress requests before shutting down
* rgw: fix S3 auth with response-* query string params (Sylvain Munaut, Yehuda Sadeh)
* sysvinit: add condrestart command (Dan van der Ster)
v0.67.4 "Dumpling"
------------------
This point release fixes an important performance issue with radosgw,
keystone authentication token caching, and CORS. All users
(especially those of rgw) are encouraged to upgrade.
Notable changes
~~~~~~~~~~~~~~~
* crush: fix invalidation of cached names
* crushtool: do not crash on non-unique bucket ids
* mds: be more careful when decoding LogEvents
* mds: fix heap check debugging commands
* mon: avoid rebuilding old full osdmaps
* mon: fix 'ceph crush move ...'
* mon: fix 'ceph osd crush reweight ...'
* mon: fix writeout of full osdmaps during trim
* mon: limit size of transactions
* mon: prevent both unmanaged and pool snaps
* osd: disable xattr size limit (prevents upload of large rgw objects)
* osd: fix recovery op throttling
* osd: fix throttling of log messages for very slow requests
* rgw: drain pending requests before completing write
* rgw: fix CORS
* rgw: fix inefficient list::size() usage
* rgw: fix keystone token expiration
* rgw: fix minor memory leaks
* rgw: fix null termination of buffer
For more detailed information, see :download:`the complete changelog <changelog/v0.67.4.txt>`.
v0.67.3 "Dumpling"
------------------
This point release fixes a few important performance regressions with
the OSD (both with CPU and disk utilization), as well as several other
important but less common problems. We recommend that all production users
upgrade.
Notable Changes
~~~~~~~~~~~~~~~
* ceph-disk: partprobe after creation journal partition
* ceph-disk: specify fs type when mounting
* ceph-post-file: new utility to help share logs and other files with ceph developers
* libcephfs: fix truncate vs readahead race (crash)
* mds: fix flock/fcntl lock deadlock
* mds: fix rejoin loop when encountering pre-dumpling backpointers
* mon: allow name and addr discovery during election stage
* mon: always refresh after Paxos store_state (fixes recovery corner case)
* mon: fix off-by-4x bug with osd byte counts
* osd: add and disable 'pg log keys debug' by default
* osd: add option to disable throttling
* osd: avoid leveldb iterators for pg log append and trim
* osd: fix readdir_r invocations
* osd: use fdatasync instead of sync
* radosgw: fix sysvinit script return status
* rbd: relicense as LGPL2
* rgw: flush pending data on multipart upload
* rgw: recheck object name during S3 POST
* rgw: reorder init/startup
* rpm: fix debuginfo package build
For more detailed information, see :download:`the complete changelog <changelog/v0.67.3.txt>`.
v0.67.2 "Dumpling"
------------------
This is an imporant point release for Dumpling. Most notably, it
fixes a problem when upgrading directly from v0.56.x Bobtail to
v0.67.x Dumpling (without stopping at v0.61.x Cuttlefish along the
way). It also fixes a problem with the CLI parsing of the CEPH_ARGS
environment variable, high CPU utilization by the ceph-osd daemons,
and cleans up the radosgw shutdown sequence.
Notable Changes
~~~~~~~~~~~~~~~
* objecter: resend linger requests when cluster goes from full to non-full
* ceph: parse CEPH_ARGS environment variable
* librados: fix small memory leak
* osd: remove old log objects on upgrade (fixes bobtail -> dumpling jump)
* osd: disable PGLog::check() via config option (fixes CPU burn)
* rgw: drain requests on shutdown
* rgw: misc memory leaks on shutdown
For more detailed information, see :download:`the complete changelog <changelog/v0.67.2.txt>`.
v0.67.1 "Dumpling"
------------------
This is a minor point release for Dumpling that fixes problems with
OpenStack and librbd hangs when caching is disabled.
Notable changes
~~~~~~~~~~~~~~~
* librados, librbd: fix constructor for python bindings with certain
usages (in particular, that used by OpenStack)
* librados, librbd: fix aio_flush wakeup when cache is disabled
* librados: fix locking for aio completion refcounting
* fixes 'ceph --admin-daemon ...' command error code on error
* fixes 'ceph daemon ... config set ...' command for boolean config
options.
For more detailed information, see :download:`the complete changelog <changelog/v0.67.1.txt>`.
v0.67 "Dumpling"
----------------
This is the fourth major release of Ceph, code-named "Dumpling." The
headline features for this release include:
* Multi-site support for radosgw. This includes the ability to set up
separate "regions" in the same or different Ceph clusters that share
a single S3/Swift bucket/container namespace.
* RESTful API endpoint for Ceph cluster administration.
ceph-rest-api, a wrapper around ceph_rest_api.py, can be used to
start up a test single-threaded HTTP server that provides access to
cluster information and administration in very similar ways to the
ceph commandline tool. ceph_rest_api.py can be used as a WSGI
application for deployment in a more-capable web server. See
ceph-rest-api.8 for more.
* Object namespaces in librados.
Upgrade Sequencing
~~~~~~~~~~~~~~~~~~
It is possible to do a rolling upgrade from Cuttlefish to Dumpling.
#. Upgrade ceph-common on all nodes that will use the command line
'ceph' utility.
#. Upgrade all monitors (upgrade ceph package, restart ceph-mon
daemons). This can happen one daemon or host at a time. Note that
because cuttlefish and dumpling monitors can't talk to each other,
all monitors should be upgraded in relatively short succession to
minimize the risk that an a untimely failure will reduce
availability.
#. Upgrade all osds (upgrade ceph package, restart ceph-osd daemons).
This can happen one daemon or host at a time.
#. Upgrade radosgw (upgrade radosgw package, restart radosgw daemons).
Upgrading from v0.66
~~~~~~~~~~~~~~~~~~~~
* There is monitor internal protocol change, which means that v0.67
ceph-mon daemons cannot talk to v0.66 or older daemons. We
recommend upgrading all monitors at once (or in relatively quick
succession) to minimize the possibility of downtime.
* The output of 'ceph status --format=json' or 'ceph -s --format=json'
has changed to return status information in a more structured and
usable format.
* The 'ceph pg dump_stuck [threshold]' command used to require a
--threshold or -t prefix to the threshold argument, but now does
not.
* Many more ceph commands now output formatted information; select
with '--format=<format>', where <format> can be 'json', 'json-pretty',
'xml', or 'xml-pretty'.
* The 'ceph pg <pgid> ...' commands (like 'ceph pg <pgid> query') are
deprecated in favor of 'ceph tell <pgid> ...'. This makes the
distinction between 'ceph pg <command> <pgid>' and 'ceph pg <pgid>
<command>' less awkward by making it clearer that the 'tell'
commands are talking to the OSD serving the placement group, not the
monitor.
* The 'ceph --admin-daemon <path> <command ...>' used to accept the
command and arguments as either a single string or as separate
arguments. It will now only accept the command spread across
multiple arguments. This means that any script which does something
like::
ceph --admin-daemon /var/run/ceph/ceph-osd.0.asok 'config set debug_ms 1'
needs to remove the quotes. Also, note that the above can now be
shortened to::
ceph daemon osd.0 config set debug_ms 1
* The radosgw caps were inconsistently documented to be either 'mon =
allow r' or 'mon = allow rw'. The 'mon = allow rw' is required for
radosgw to create its own pools. All documentation has been updated
accordingly.
* The radosgw copy object operation may return extra progress info
during the operation. At this point it will only happen when doing
cross zone copy operations. The S3 response will now return extra
<Progress> field under the <CopyResult> container. The Swift
response will now send the progress as a json array.
* In v0.66 and v0.65 the HASHPSPOOL pool flag was enabled by default
for new pools, but has been disabled again until Linux kernel client
support reaches more distributions and users.
* ceph-osd now requires a max file descriptor limit (e.g., ``ulimit -n
...``) of at least
filestore_wbthrottle_(xfs|btrfs)_inodes_hard_limit (5000 by default)
in order to accomodate the new write back throttle system. On
Ubuntu, upstart now sets the fd limit to 32k. On other platforms,
the sysvinit script will set it to 32k by default (still
overrideable via max_open_files). If this field has been customized
in ceph.conf it should likely be adjusted upwards.
Upgrading from v0.61 "Cuttlefish"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In addition to the above notes about upgrading from v0.66:
* There has been a huge revamp of the 'ceph' command-line interface
implementation. The ``ceph-common`` client library needs to be
upgrade before ``ceph-mon`` is restarted in order to avoid problems
using the CLI (the old ``ceph`` client utility cannot talk to the
new ``ceph-mon``).
* The CLI is now very careful about sending the 'status' one-liner
output to stderr and command output to stdout. Scripts relying on
output should take care.
* The 'ceph osd tell ...' and 'ceph mon tell ...' commands are no
longer supported. Any callers should use::
ceph tell osd.<id or *> ...
ceph tell mon.<id or name or *> ...
The 'ceph mds tell ...' command is still there, but will soon also
transition to 'ceph tell mds.<id or name or \*> ...'
* The 'ceph osd crush add ...' command used to take one of two forms::
ceph osd crush add 123 osd.123 <weight> <location ...>
ceph osd crush add osd.123 <weight> <location ...>
This is because the id and crush name are redundant. Now only the
simple form is supported, where the osd name/id can either be a bare
id (integer) or name (osd.<id>)::
ceph osd crush add osd.123 <weight> <location ...>
ceph osd crush add 123 <weight> <location ...>
* There is now a maximum RADOS object size, configurable via 'osd max
object size', defaulting to 100 GB. Note that this has no effect on
RBD, CephFS, or radosgw, which all stripe over objects. If you are
using librados and storing objects larger than that, you will need
to adjust 'osd max object size', and should consider using smaller
objects instead.
* The 'osd min down {reporters|reports}' config options have been
renamed to 'mon osd min down {reporters|reports}', and the
documentation has been updated to reflect that these options apply
to the monitors (who process failure reports) and not OSDs. If you
have adjusted these settings, please update your ``ceph.conf``
accordingly.
Notable changes since v0.66
~~~~~~~~~~~~~~~~~~~~~~~~~~~
* mon: sync improvements (performance and robustness)
* mon: many bug fixes (paxos and services)
* mon: fixed bugs in recovery and io rate reporting (negative/large values)
* mon: collect metadata on osd performance
* mon: generate health warnings from slow or stuck requests
* mon: expanded --format=<json|xml|...> support for monitor commands
* mon: scrub function for verifying data integrity
* mon, osd: fix old osdmap trimming logic
* mon: enable leveldb caching by default
* mon: more efficient storage of PG metadata
* ceph-rest-api: RESTful endpoint for administer cluster (mirrors CLI)
* rgw: multi-region support
* rgw: infrastructure to support georeplication of bucket and user metadata
* rgw: infrastructure to support georeplication of bucket data
* rgw: COPY object support between regions
* rbd: /etc/ceph/rbdmap file for mapping rbd images on startup
* osd: many bug fixes
* osd: limit number of incremental osdmaps sent to peers (could cause osds to be wrongly marked down)
* osd: more efficient small object recovery
* osd, librados: support for object namespaces
* osd: automatically enable xattrs on leveldb as necessary
* mds: fix bug in LOOKUPINO (used by nfs reexport)
* mds: fix O_TRUNC locking
* msgr: fixed race condition in inter-osd network communication
* msgr: fixed various memory leaks related to network sessions
* ceph-disk: fixes for unusual device names, partition detection
* hypertable: fixes for hypertable CephBroker bindings
* use SSE4.2 crc32c instruction if present
Notable changes since v0.61 "Cuttlefish"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* add 'config get' admin socket command
* ceph-conf: --show-config-value now reflects daemon defaults
* ceph-disk: add '[un]suppress-active DEV' command
* ceph-disk: avoid mounting over an existing osd in /var/lib/ceph/osd/*
* ceph-disk: fixes for unusual device names, partition detection
* ceph-disk: improved handling of odd device names
* ceph-disk: many fixes for RHEL/CentOS, Fedora, wheezy
* ceph-disk: simpler, more robust locking
* ceph-fuse, libcephfs: fix a few caps revocation bugs
* ceph-fuse, libcephfs: fix read zeroing at EOF
* ceph-fuse, libcephfs: fix request refcounting bug (hang on shutdown)
* ceph-fuse, libcephfs: fix truncatation bug on >4MB files (Yan, Zheng)
* ceph-fuse, libcephfs: fix for cap release/hang
* ceph-fuse: add ioctl support
* ceph-fuse: fixed long-standing O_NOATIME vs O_LAZY bug
* ceph-rest-api: RESTful endpoint for administer cluster (mirrors CLI)
* ceph, librados: fix resending of commands on mon reconnect
* daemons: create /var/run/ceph as needed
* debian wheezy: fix udev rules
* debian, specfile: packaging cleanups
* debian: fix upstart behavior with upgrades
* debian: rgw: stop daemon on uninstall
* debian: stop daemons on uninstall; fix dependencies
* hypertable: fixes for hypertable CephBroker bindings
* librados python binding cleanups
* librados python: fix xattrs > 4KB (Josh Durgin)
* librados: configurable max object size (default 100 GB)
* librados: new calls to administer the cluster
* librbd: ability to read from local replicas
* librbd: locking tests (Josh Durgin)
* librbd: make default options/features for newly created images (e.g., via qemu-img) configurable
* librbd: parallelize delete, rollback, flatten, copy, resize
* many many fixes from static code analysis (Danny Al-Gaaf)
* mds: fix O_TRUNC locking
* mds: fix bug in LOOKUPINO (used by nfs reexport)
* mds: fix rare hang after client restart
* mds: fix several bugs (Yan, Zheng)
* mds: many backpointer improvements (Yan, Zheng)
* mds: many fixes for mds clustering
* mds: misc stability fixes (Yan, Zheng, Greg Farnum)
* mds: new robust open-by-ino support (Yan, Zheng)
* mds: support robust lookup by ino number (good for NFS) (Yan, Zheng)
* mon, ceph: huge revamp of CLI and internal admin API. (Dan Mick)
* mon, osd: fix old osdmap trimming logic
* mon, osd: many memory leaks fixed
* mon: better trim/compaction behavior
* mon: collect metadata on osd performance
* mon: enable leveldb caching by default
* mon: expanded --format=<json|xml|...> support for monitor commands
* mon: fix election timeout
* mon: fix leveldb compression, trimming
* mon: fix start fork behavior
* mon: fix units in 'ceph df' output
* mon: fix validation of mds ids from CLI commands
* mon: fixed bugs in recovery and io rate reporting (negative/large values)
* mon: generate health warnings from slow or stuck requests
* mon: many bug fixes (paxos and services, sync)
* mon: many stability fixes (Joao Luis)
* mon: more efficient storage of PG metadata
* mon: new --extract-monmap to aid disaster recovery
* mon: new capability syntax
* mon: scrub function for verifying data integrity
* mon: simplify PaxosService vs Paxos interaction, fix readable/writeable checks
* mon: sync improvements (performance and robustness)
* mon: tuning, performance improvements
* msgr: fix various memory leaks
* msgr: fixed race condition in inter-osd network communication
* msgr: fixed various memory leaks related to network sessions
* osd, librados: support for object namespaces
* osd, mon: optionally dump leveldb transactions to a log
* osd: automatically enable xattrs on leveldb as necessary
* osd: avoid osd flapping from asymmetric network failure
* osd: break blacklisted client watches (David Zafman)
* osd: close narrow journal race
* osd: do not use fadvise(DONTNEED) on XFS (data corruption on power cycle)
* osd: fix for an op ordering bug
* osd: fix handling for split after upgrade from bobtail
* osd: fix incorrect mark-down of osds
* osd: fix internal heartbeart timeouts when scrubbing very large objects
* osd: fix memory/network inefficiency during deep scrub
* osd: fixed problem with front-side heartbeats and mixed clusters (David Zafman)
* osd: limit number of incremental osdmaps sent to peers (could cause osds to be wrongly marked down)
* osd: many bug fixes
* osd: monitor both front and back interfaces
* osd: more efficient small object recovery
* osd: new writeback throttling (for less bursty write performance) (Sam Just)
* osd: pg log (re)writes are now vastly more efficient (faster peering) (Sam Just)
* osd: ping/heartbeat on public and private interfaces
* osd: prioritize recovery for degraded PGs
* osd: re-use partially deleted PG contents when present (Sam Just)
* osd: recovery and peering performance improvements
* osd: resurrect partially deleted PGs
* osd: verify both front and back network are working before rejoining cluster
* rados: clonedata command for cli
* radosgw-admin: create keys for new users by default
* rbd: /etc/ceph/rbdmap file for mapping rbd images on startup
* rgw: COPY object support between regions
* rgw: fix CORS bugs
* rgw: fix locking issue, user operation mask,
* rgw: fix radosgw-admin buckets list (Yehuda Sadeh)
* rgw: fix usage log scanning for large, untrimmed logs
* rgw: handle deep uri resources
* rgw: infrastructure to support georeplication of bucket and user metadata
* rgw: infrastructure to support georeplication of bucket data
* rgw: multi-region support
* sysvinit: fix enumeration of local daemons
* sysvinit: fix osd crush weight calculation when using -a
* sysvinit: handle symlinks in /var/lib/ceph/osd/*
* use SSE4.2 crc32c instruction if present
v0.66
-----
Upgrading
~~~~~~~~~
* There is now a configurable maximum rados object size, defaulting to 100 GB. If you
are using librados and storing objects larger than that, you will need to adjust
'osd max object size', and should consider using smaller objects instead.
Notable changes
~~~~~~~~~~~~~~~
* osd: pg log (re)writes are now vastly more efficient (faster peering) (Sam Just)
* osd: fixed problem with front-side heartbeats and mixed clusters (David Zafman)
* mon: tuning, performance improvements
* mon: simplify PaxosService vs Paxos interaction, fix readable/writeable checks
* rgw: fix radosgw-admin buckets list (Yehuda Sadeh)
* mds: support robust lookup by ino number (good for NFS) (Yan, Zheng)
* mds: fix several bugs (Yan, Zheng)
* ceph-fuse, libcephfs: fix truncatation bug on >4MB files (Yan, Zheng)
* ceph/librados: fix resending of commands on mon reconnect
* librados python: fix xattrs > 4KB (Josh Durgin)
* librados: configurable max object size (default 100 GB)
* msgr: fix various memory leaks
* ceph-fuse: fixed long-standing O_NOATIME vs O_LAZY bug
* ceph-fuse, libcephfs: fix request refcounting bug (hang on shutdown)
* ceph-fuse, libcephfs: fix read zeroing at EOF
* ceph-conf: --show-config-value now reflects daemon defaults
* ceph-disk: simpler, more robust locking
* ceph-disk: avoid mounting over an existing osd in /var/lib/ceph/osd/*
* sysvinit: handle symlinks in /var/lib/ceph/osd/*
v0.65
-----
Upgrading
~~~~~~~~~
* Huge revamp of the 'ceph' command-line interface implementation.
The ``ceph-common`` client library needs to be upgrade before
``ceph-mon`` is restarted in order to avoid problems using the CLI
(the old ``ceph`` client utility cannot talk to the new
``ceph-mon``).
* The CLI is now very careful about sending the 'status' one-liner
output to stderr and command output to stdout. Scripts relying on
output should take care.
* The 'ceph osd tell ...' and 'ceph mon tell ...' commands are no
longer supported. Any callers should use::
ceph tell osd.<id or *> ...
ceph tell mon.<id or name or *> ...
The 'ceph mds tell ...' command is still there, but will soon also
transition to 'ceph tell mds.<id or name or \*> ...'
* The 'ceph osd crush add ...' command used to take one of two forms::
ceph osd crush add 123 osd.123 <weight> <location ...>
ceph osd crush add osd.123 <weight> <location ...>
This is because the id and crush name are redundant. Now only the
simple form is supported, where the osd name/id can either be a bare
id (integer) or name (osd.<id>)::
ceph osd crush add osd.123 <weight> <location ...>
ceph osd crush add 123 <weight> <location ...>
* There is now a maximum RADOS object size, configurable via 'osd max
object size', defaulting to 100 GB. Note that this has no effect on
RBD, CephFS, or radosgw, which all stripe over objects.
Notable changes
~~~~~~~~~~~~~~~
* mon, ceph: huge revamp of CLI and internal admin API. (Dan Mick)
* mon: new capability syntax
* osd: do not use fadvise(DONTNEED) on XFS (data corruption on power cycle)
* osd: recovery and peering performance improvements
* osd: new writeback throttling (for less bursty write performance) (Sam Just)
* osd: ping/heartbeat on public and private interfaces
* osd: avoid osd flapping from asymmetric network failure
* osd: re-use partially deleted PG contents when present (Sam Just)
* osd: break blacklisted client watches (David Zafman)
* mon: many stability fixes (Joao Luis)
* mon, osd: many memory leaks fixed
* mds: misc stability fixes (Yan, Zheng, Greg Farnum)
* mds: many backpointer improvements (Yan, Zheng)
* mds: new robust open-by-ino support (Yan, Zheng)
* ceph-fuse, libcephfs: fix a few caps revocation bugs
* librados: new calls to administer the cluster
* librbd: locking tests (Josh Durgin)
* ceph-disk: improved handling of odd device names
* ceph-disk: many fixes for RHEL/CentOS, Fedora, wheezy
* many many fixes from static code analysis (Danny Al-Gaaf)
* daemons: create /var/run/ceph as needed
v0.64
-----
Upgrading
~~~~~~~~~
* New pools now have the HASHPSPOOL flag set by default to provide
better distribution over OSDs. Support for this feature was
introduced in v0.59 and Linux kernel version v3.9. If you wish to
access the cluster from an older kernel, set the 'osd pool default
flag hashpspool = false' option in your ceph.conf prior to creating
the cluster or creating new pools. Note that the presense of any
pool in the cluster with the flag enabled will make the OSD require
support from all clients.
Notable changes
~~~~~~~~~~~~~~~
* osd: monitor both front and back interfaces
* osd: verify both front and back network are working before rejoining cluster
* osd: fix memory/network inefficiency during deep scrub
* osd: fix incorrect mark-down of osds
* mon: fix start fork behavior
* mon: fix election timeout
* mon: better trim/compaction behavior
* mon: fix units in 'ceph df' output
* mon, osd: misc memory leaks
* librbd: make default options/features for newly created images (e.g., via qemu-img) configurable
* mds: many fixes for mds clustering
* mds: fix rare hang after client restart
* ceph-fuse: add ioctl support
* ceph-fuse/libcephfs: fix for cap release/hang
* rgw: handle deep uri resources
* rgw: fix CORS bugs
* ceph-disk: add '[un]suppress-active DEV' command
* debian: rgw: stop daemon on uninstall
* debian: fix upstart behavior with upgrades
v0.63
-----
Upgrading
~~~~~~~~~
* The 'osd min down {reporters|reports}' config options have been
renamed to 'mon osd min down {reporters|reports}', and the
documentation has been updated to reflect that these options apply
to the monitors (who process failure reports) and not OSDs. If you
have adjusted these settings, please update your ``ceph.conf``
accordingly.
Notable Changes
~~~~~~~~~~~~~~~
* librbd: parallelize delete, rollback, flatten, copy, resize
* librbd: ability to read from local replicas
* osd: resurrect partially deleted PGs
* osd: prioritize recovery for degraded PGs
* osd: fix internal heartbeart timeouts when scrubbing very large objects
* osd: close narrow journal race
* rgw: fix usage log scanning for large, untrimmed logs
* rgw: fix locking issue, user operation mask,
* initscript: fix osd crush weight calculation when using -a
* initscript: fix enumeration of local daemons
* mon: several fixes to paxos, sync
* mon: new --extract-monmap to aid disaster recovery
* mon: fix leveldb compression, trimming
* add 'config get' admin socket command
* rados: clonedata command for cli
* debian: stop daemons on uninstall; fix dependencies
* debian wheezy: fix udev rules
* many many small fixes from coverity scan
v0.62
-----
Notable Changes
~~~~~~~~~~~~~~~
* mon: fix validation of mds ids from CLI commands
* osd: fix for an op ordering bug
* osd, mon: optionally dump leveldb transactions to a log
* osd: fix handling for split after upgrade from bobtail
* debian, specfile: packaging cleanups
* radosgw-admin: create keys for new users by default
* librados python binding cleanups
* misc code cleanups
v0.61.9 "Cuttlefish"
--------------------
This point release resolves several low to medium-impact bugs across
the code base, and fixes a performance problem (CPU utilization) with
radosgw. We recommend that all production cuttlefish users upgrade.
Notable Changes
~~~~~~~~~~~~~~~
* ceph, ceph-authtool: fix help (Danny Al-Gaaf)
* ceph-disk: partprobe after creating journal partition
* ceph-disk: specific fs type when mounting (Alfredo Deza)
* ceph-fuse: fix bug when compiled against old versions
* ceph-fuse: fix use-after-free in caching code (Yan, Zheng)
* ceph-fuse: misc caching bugs
* ceph.spec: remove incorrect mod_fcgi dependency (Gary Lowell)
* crush: fix name caching
* librbd: fix bug when unpausing cluster (Josh Durgin)
* mds: fix LAZYIO lock hang
* mds: fix bug in file size recovery (after client crash)
* mon: fix paxos recovery corner case
* osd: fix exponential backoff for slow request warnings (Loic Dachary)
* osd: fix readdir_r usage
* osd: fix startup for long-stopped OSDs
* rgw: avoid std::list::size() to avoid wasting CPU cycles (Yehuda Sadeh)
* rgw: drain pending requests during write (fixes data safety issue) (Yehuda Sadeh)
* rgw: fix authenticated users group ACL check (Yehuda Sadeh)
* rgw: fix bug in POST (Yehuda Sadeh)
* rgw: fix sysvinit script 'status' command, return value (Danny Al-Gaaf)
* rgw: reduce default log level (Yehuda Sadeh)
For more detailed information, see :download:`the complete changelog <changelog/v0.61.9.txt>`.
v0.61.8 "Cuttlefish"
--------------------
This release includes a number of important issues, including rare
race conditions in the OSD, a few monitor bugs, and fixes for RBD
flush behavior. We recommend that production users upgrade at their
convenience.
Notable Changes
~~~~~~~~~~~~~~~
* librados: fix async aio completion wakeup
* librados: fix aio completion locking
* librados: fix rare deadlock during shutdown
* osd: fix race when queueing recovery operations
* osd: fix possible race during recovery
* osd: optionally preload rados classes on startup (disabled by default)
* osd: fix journal replay corner condition
* osd: limit size of peering work queue batch (to speed up peering)
* mon: fix paxos recovery corner case
* mon: fix rare hang when monmap updates during an election
* mon: make 'osd pool mksnap ...' avoid exposing uncommitted state
* mon: make 'osd pool rmsnap ...' not racy, avoid exposing uncommitted state
* mon: fix bug during mon cluster expansion
* rgw: fix crash during multi delete operation
* msgr: fix race conditions during osd network reinitialization
* ceph-disk: apply mount options when remounting
For more detailed information, see :download:`the complete changelog <changelog/v0.61.8.txt>`.
v0.61.7 "Cuttlefish"
--------------------
This release fixes another regression preventing monitors to start after
undergoing certain upgrade sequences, as well as some corner cases with
Paxos and support for unusual device names in ceph-disk/ceph-deploy.
Notable Changes
~~~~~~~~~~~~~~~
* mon: fix regression in latest full osdmap retrieval
* mon: fix a long-standing bug in a paxos corner case
* ceph-disk: improved support for unusual device names (e.g., /dev/cciss/c0d0)
For more detailed information, see :download:`the complete changelog <changelog/v0.61.7.txt>`.
v0.61.6 "Cuttlefish"
--------------------
This release fixes a regression in v0.61.5 that could prevent monitors
from restarting. This affects any cluster that was upgraded from a
previous version of Ceph (and not freshly created with v0.61.5).
All users are strongly recommended to upgrade.
Notable Changes
~~~~~~~~~~~~~~~
* mon: record latest full osdmap
* mon: work around previous bug in which latest full osdmap is not recorded
* mon: avoid scrub while updating
For more detailed information, see :download:`the complete changelog <changelog/v0.61.6.txt>`.
v0.61.5 "Cuttlefish"
--------------------
This release most improves stability of the monitor and fixes a few
bugs with the ceph-disk utility (used by ceph-deploy). We recommand
that all v0.61.x users upgrade.
Upgrading
~~~~~~~~~
* This release fixes a 32-bit vs 64-bit arithmetic bug with the
feature bits. An unfortunate consequence of the fix is that 0.61.4
(or earlier) ceph-mon daemons can't form a quorum with 0.61.5 (or
later) monitors. To avoid the possibility of service disruption, we
recommend you upgrade all monitors at once.
Notable Changes
~~~~~~~~~~~~~~~
* mon: misc sync improvements (faster, more reliable, better tuning)
* mon: enable leveldb cache by default (big performance improvement)
* mon: new scrub feature (primarily for diagnostic, testing purposes)
* mon: fix occasional leveldb assertion on startup
* mon: prevent reads until initial state is committed
* mon: improved logic for trimming old osdmaps
* mon: fix pick_addresses bug when expanding mon cluster
* mon: several small paxos fixes, improvements
* mon: fix bug osdmap trim behavior
* osd: fix several bugs with PG stat reporting
* osd: limit number of maps shared with peers (which could cause domino failures)
* rgw: fix radosgw-admin buckets list (for all buckets)
* mds: fix occasional client failure to reconnect
* mds: fix bad list traversal after unlink
* mds: fix underwater dentry cleanup (occasional crash after mds restart)
* libcephfs, ceph-fuse: fix occasional hangs on umount
* libcephfs, ceph-fuse: fix old bug with O_LAZY vs O_NOATIME confusion
* ceph-disk: more robust journal device detection on RHEL/CentOS
* ceph-disk: better, simpler locking
* ceph-disk: do not inadvertantely mount over existing osd mounts
* ceph-disk: better handling for unusual device names
* sysvinit, upstart: handle symlinks in /var/lib/ceph/*
For more detailed information, see :download:`the complete changelog <changelog/v0.61.5.txt>`.
v0.61.4 "Cuttlefish"
--------------------
This release resolves a possible data corruption on power-cycle when
using XFS, a few outstanding problems with monitor sync, several
problems with ceph-disk and ceph-deploy operation, and a problem with
OSD memory usage during scrub.
Upgrading
~~~~~~~~~
* No issues.
Notable Changes
~~~~~~~~~~~~~~~
* mon: fix daemon exit behavior when error is encountered on startup
* mon: more robust sync behavior
* osd: do not use sync_file_range(2), posix_fadvise(...DONTNEED) (can cause data corruption on power loss on XFS)
* osd: avoid unnecessary log rewrite (improves peering speed)
* osd: fix scrub efficiency bug (problematic on old clusters)
* rgw: fix listing objects that start with underscore
* rgw: fix deep URI resource, CORS bugs
* librados python binding: fix truncate on 32-bit architectures
* ceph-disk: fix udev rules
* rpm: install sysvinit script on package install
* ceph-disk: fix OSD start on machine reboot on Debian wheezy
* ceph-disk: activate OSD when journal device appears second
* ceph-disk: fix various bugs on RHEL/CentOS 6.3
* ceph-disk: add 'zap' command
* ceph-disk: add '[un]suppress-activate' command for preparing spare disks
* upstart: start on runlevel [2345] (instead of after the first network interface starts)
* ceph-fuse, libcephfs: handle mds session reset during session open
* ceph-fuse, libcephfs: fix two capability revocation bugs
* ceph-fuse: fix thread creation on startup
* all daemons: create /var/run/ceph directory on startup if missing
For more detailed information, see :download:`the complete changelog <changelog/v0.61.4.txt>`.
v0.61.3 "Cuttlefish"
--------------------
This release resolves a number of problems with the monitors and leveldb that users have
been seeing. Please upgrade.
Upgrading
~~~~~~~~~
* There is one known problem with mon upgrades from bobtail. If the
ceph-mon conversion on startup is aborted or fails for some reason, we
do not correctly error out, but instead continue with (in certain cases)
odd results. Please be careful if you have to restart the mons during
the upgrade. A 0.61.4 release with a fix will be out shortly.
* In the meantime, for current cuttlefish users, v0.61.3 is safe to use.
Notable Changes
~~~~~~~~~~~~~~~
* mon: paxos state trimming fix (resolves runaway disk usage)
* mon: finer-grained compaction on trim
* mon: discard messages from disconnected clients (lowers load)
* mon: leveldb compaction and other stats available via admin socket
* mon: async compaction (lower overhead)
* mon: fix bug incorrectly marking osds down with insufficient failure reports
* osd: fixed small bug in pg request map
* osd: avoid rewriting pg info on every osdmap
* osd: avoid internal heartbeta timeouts when scrubbing very large objects
* osd: fix narrow race with journal replay
* mon: fixed narrow pg split race
* rgw: fix leaked space when copying object
* rgw: fix iteration over large/untrimmed usage logs
* rgw: fix locking issue with ops log socket
* rgw: require matching version of librados
* librbd: make image creation defaults configurable (e.g., create format 2 images via qemu-img)
* fix units in 'ceph df' output
* debian: fix prerm/postinst hooks to start/stop daemons appropriately
* upstart: allow uppercase daemons names (and thus hostnames)
* sysvinit: fix enumeration of local daemons by type
* sysvinit: fix osd weight calcuation when using -a
* fix build on unsigned char platforms (e.g., arm)
For more detailed information, see :download:`the complete changelog <changelog/v0.61.3.txt>`.
v0.61.2 "Cuttlefish"
--------------------
This release disables a monitor debug log that consumes disk space and
fixes a bug when upgrade some monitors from bobtail to cuttlefish.
Notable Changes
~~~~~~~~~~~~~~~
* mon: fix conversion of stores with duplicated GV values
* mon: disable 'mon debug dump transactions' by default
For more detailed information, see :download:`the complete changelog <changelog/v0.61.2.txt>`.
v0.61.1 "Cuttlefish"
--------------------
This release fixes a problem when upgrading a bobtail cluster that had
snapshots to cuttlefish.
Notable Changes
~~~~~~~~~~~~~~~
* osd: handle upgrade when legacy snap collections are present; repair from previous failed restart
* ceph-create-keys: fix race with ceph-mon startup (which broke 'ceph-deploy gatherkeys ...')
* ceph-create-keys: gracefully handle bad response from ceph-osd
* sysvinit: do not assume default osd_data when automatically weighting OSD
* osd: avoid crash from ill-behaved classes using getomapvals
* debian: fix squeeze dependency
* mon: debug options to log or dump leveldb transactions
For more detailed information, see :download:`the complete changelog <changelog/v0.61.1.txt>`.
v0.61 "Cuttlefish"
------------------
Upgrading from v0.60
~~~~~~~~~~~~~~~~~~~~
* The ceph-deploy tool is now the preferred method of provisioning
new clusters. For existing clusters created via mkcephfs that
would like to transition to the new tool, there is a migration
path, documented at `Transitioning to ceph-deploy`_.
* The sysvinit script (/etc/init.d/ceph) will now verify (and, if
necessary, update) the OSD's position in the CRUSH map on startup.
(The upstart script has always worked this way.) By default, this
ensures that the OSD is under a 'host' with a name that matches the
hostname (``hostname -s``). Legacy clusters create with mkcephfs do
this by default, so this should not cause any problems, but legacy
clusters with customized CRUSH maps with an alternate structure
should set ``osd crush update on start = false``.
* radosgw-admin now uses the term zone instead of cluster to describe
each instance of the radosgw data store (and corresponding
collection of radosgw daemons). The usage for the radosgw-admin
command and the 'rgw zone root pool' config options have changed
accordingly.
* rbd progress indicators now go to standard error instead of standard
out. (You can disable progress with --no-progress.)
* The 'rbd resize ...' command now requires the --allow-shrink option
when resizing to a smaller size. Expanding images to a larger size
is unchanged.
* Please review the changes going back to 0.56.4 if you are upgrading
all the way from bobtail.
* The old 'ceph stop_cluster' command has been removed.
* The sysvinit script now uses the ceph.conf file on the remote host
when starting remote daemons via the '-a' option. Note that if '-a'
is used in conjunction with '-c path', the path must also be present
on the remote host (it is not copied to a temporary file, as it was
previously).
Upgrading from v0.56.4 "Bobtail"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please see `Upgrading from Bobtail to Cuttlefish`_ for details.
.. _Upgrading from Bobtail to Cuttlefish: ../install/upgrading-ceph/#upgrading-from-bobtail-to-cuttlefish
* The ceph-deploy tool is now the preferred method of provisioning
new clusters. For existing clusters created via mkcephfs that
would like to transition to the new tool, there is a migration
path, documented at `Transitioning to ceph-deploy`_.
.. _Transitioning to ceph-deploy: ../rados/deployment/ceph-deploy-transition
* The sysvinit script (/etc/init.d/ceph) will now verify (and, if
necessary, update) the OSD's position in the CRUSH map on startup.
(The upstart script has always worked this way.) By default, this
ensures that the OSD is under a 'host' with a name that matches the
hostname (``hostname -s``). Legacy clusters create with mkcephfs do
this by default, so this should not cause any problems, but legacy
clusters with customized CRUSH maps with an alternate structure
should set ``osd crush update on start = false``.
* radosgw-admin now uses the term zone instead of cluster to describe
each instance of the radosgw data store (and corresponding
collection of radosgw daemons). The usage for the radosgw-admin
command and the 'rgw zone root pool' config optoins have changed
accordingly.
* rbd progress indicators now go to standard error instead of standard
out. (You can disable progress with --no-progress.)
* The 'rbd resize ...' command now requires the --allow-shrink option
when resizing to a smaller size. Expanding images to a larger size
is unchanged.
* Please review the changes going back to 0.56.4 if you are upgrading
all the way from bobtail.
* The old 'ceph stop_cluster' command has been removed.
* The sysvinit script now uses the ceph.conf file on the remote host
when starting remote daemons via the '-a' option. Note that if '-a'
is used in conjuction with '-c path', the path must also be present
on the remote host (it is not copied to a temporary file, as it was
previously).
* The monitor is using a completely new storage strategy and
intra-cluster protocol. This means that cuttlefish and bobtail
monitors do not talk to each other. When you upgrade each one, it
will convert its local data store to the new format. Once you
upgrade a majority, the quorum will be formed using the new protocol
and the old monitors will be blocked out until they too get
upgraded. For this reason, we recommend not running a mixed-version
cluster for very long.
* ceph-mon now requires the creation of its data directory prior to
--mkfs, similarly to what happens on ceph-osd. This directory is no
longer automatically created, and custom scripts should be adjusted to
reflect just that.
* The monitor now enforces that MDS names be unique. If you have
multiple daemons start with with the same id (e.g., ``mds.a``) the
second one will implicitly mark the first as failed. This makes
things less confusing and makes a daemon restart faster (we no
longer wait for the stopped daemon to time out) but existing
multi-mds configurations may need to be adjusted accordingly to give
daemons unique names.
* The 'ceph osd pool delete <poolname>' and 'rados rmpool <poolname>'
now have safety interlocks with loud warnings that make you confirm
pool removal. Any scripts curenty rely on these functions zapping
data without confirmation need to be adjusted accordingly.
Notable Changes from v0.60
~~~~~~~~~~~~~~~~~~~~~~~~~~
* rbd: incremental backups
* rbd: only set STRIPINGV2 feature if striping parameters are incompatible with old versions
* rbd: require --allow-shrink for resizing images down
* librbd: many bug fixes
* rgw: management REST API
* rgw: fix object corruption on COPY to self
* rgw: new sysvinit script for rpm-based systems
* rgw: allow buckets with '_'
* rgw: CORS support
* mon: many fixes
* mon: improved trimming behavior
* mon: fix data conversion/upgrade problem (from bobtail)
* mon: ability to tune leveldb
* mon: config-keys service to store arbitrary data on monitor
* mon: 'osd crush add|link|unlink|add-bucket ...' commands
* mon: trigger leveldb compaction on trim
* osd: per-rados pool quotas (objects, bytes)
* osd: tool to export, import, and delete PGs from an individual OSD data store
* osd: notify mon on clean shutdown to avoid IO stall
* osd: improved detection of corrupted journals
* osd: ability to tune leveldb
* osd: improve client request throttling
* osd, librados: fixes to the LIST_SNAPS operation
* osd: improvements to scrub error repair
* osd: better prevention of wedging OSDs with ENOSPC
* osd: many small fixes
* mds: fix xattr handling on root inode
* mds: fixed bugs in journal replay
* mds: many fixes
* librados: clean up snapshot constant definitions
* libcephfs: calls to query CRUSH topology (used by Hadoop)
* ceph-fuse, libcephfs: misc fixes to mds session management
* ceph-fuse: disabled cache invalidation (again) due to potential deadlock with kernel
* sysvinit: try to start all daemons despite early failures
* ceph-disk: new 'list' command
* ceph-disk: hotplug fixes for RHEL/CentOS
* ceph-disk: fix creation of OSD data partitions on >2TB disks
* osd: fix udev rules for RHEL/CentOS systems
* fix daemon logging during initial startup
Notable changes from v0.56 "Bobtail"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* always use installed system leveldb (Gary Lowell)
* auth: ability to require new cephx signatures on messages (still off by default)
* buffer unit testing (Loic Dachary)
* ceph tool: some CLI interface cleanups
* ceph-disk: improve multicluster support, error handling (Sage Weil)
* ceph-disk: support for dm-crypt (Alexandre Marangone)
* ceph-disk: support for sysvinit, directories or partitions (not full disks)
* ceph-disk: fix mkfs args on old distros (Alexandre Marangone)
* ceph-disk: fix creation of OSD data partitions on >2TB disks
* ceph-disk: hotplug fixes for RHEL/CentOS
* ceph-disk: new 'list' command
* ceph-fuse, libcephfs: misc fixes to mds session management
* ceph-fuse: disabled cache invalidation (again) due to potential deadlock with kernel
* ceph-fuse: enable kernel cache invalidation (Sam Lang)
* ceph-fuse: fix statfs(2) reporting
* ceph-fuse: session handling cleanup, bug fixes (Sage Weil)
* crush: ability to create, remove rules via CLI
* crush: update weights for all instances of an item, not just the first (Sage Weil)
* fix daemon logging during initial startup
* fixed log rotation (Gary Lowell)
* init-ceph, mkcephfs: close a few security holes with -a (Sage Weil)
* libcephfs: calls to query CRUSH topology (used by Hadoop)
* libcephfs: many fixes, cleanups with the Java bindings
* libcephfs: new topo API requests for Hadoop (Noah Watkins)
* librados: clean up snapshot constant definitions
* librados: fix linger bugs (Josh Durgin)
* librbd: fixed flatten deadlock (Josh Durgin)
* librbd: fixed some locking issues with flatten (Josh Durgin)
* librbd: many bug fixes
* librbd: optionally wait for flush before enabling writeback (Josh Durgin)
* many many cleanups (Danny Al-Gaaf)
* mds, ceph-fuse: fix bugs with replayed requests after MDS restart (Sage Weil)
* mds, ceph-fuse: manage layouts via xattrs
* mds: allow xattrs on root
* mds: fast failover between MDSs (enforce unique mds names)
* mds: fix xattr handling on root inode
* mds: fixed bugs in journal replay
* mds: improve session cleanup (Sage Weil)
* mds: many fixes (Yan Zheng)
* mds: misc bug fixes with clustered MDSs and failure recovery
* mds: misc bug fixes with readdir
* mds: new encoding for all data types (to allow forward/backward compatbility) (Greg Farnum)
* mds: store and update backpointers/traces on directory, file objects (Sam Lang)
* mon: 'osd crush add|link|unlink|add-bucket ...' commands
* mon: ability to tune leveldb
* mon: approximate recovery, IO workload stats
* mon: avoid marking entire CRUSH subtrees out (e.g., if an entire rack goes offline)
* mon: config-keys service to store arbitrary data on monitor
* mon: easy adjustment of crush tunables via 'ceph osd crush tunables ...'
* mon: easy creation of crush rules vai 'ceph osd rule ...'
* mon: fix data conversion/upgrade problem (from bobtail)
* mon: improved trimming behavior
* mon: many fixes
* mon: new 'ceph df [detail]' command
* mon: new checks for identifying and reporting clock drift
* mon: rearchitected to utilize single instance of paxos and a key/value store (Joao Luis)
* mon: safety check for pool deletion
* mon: shut down safely if disk approaches full (Joao Luis)
* mon: trigger leveldb compaction on trim
* msgr: fix comparison of IPv6 addresses (fixes monitor bringup via ceph-deploy, chef)
* msgr: fixed race in connection reset
* msgr: optionally tune TCP buffer size to avoid throughput collapse (Jim Schutt)
* much code cleanup and optimization (Danny Al-Gaaf)
* osd, librados: ability to list watchers (David Zafman)
* osd, librados: fixes to the LIST_SNAPS operation
* osd, librados: new listsnaps command (David Zafman)
* osd: a few journaling bug fixes
* osd: ability to tune leveldb
* osd: add 'noscrub', 'nodeepscrub' osdmap flags (David Zafman)
* osd: better prevention of wedging OSDs with ENOSPC
* osd: ceph-filestore-dump tool for debugging
* osd: connection handling bug fixes
* osd: deep-scrub omap keys/values
* osd: default to libaio for the journal (some performance boost)
* osd: fix hang in 'journal aio = true' mode (Sage Weil)
* osd: fix pg log trimming (avoids memory bloat on degraded clusters)
* osd: fix udev rules for RHEL/CentOS systems
* osd: fixed bug in journal checksums (Sam Just)
* osd: improved client request throttling
* osd: improved handling when disk fills up (David Zafman)
* osd: improved journal corruption detection (Sam Just)
* osd: improved detection of corrupted journals
* osd: improvements to scrub error repair
* osd: make tracking of object snapshot metadata more efficient (Sam Just)
* osd: many small fixes
* osd: misc fixes to PG split (Sam Just)
* osd: move pg info, log into leveldb (== better performance) (David Zafman)
* osd: notify mon on clean shutdown to avoid IO stall
* osd: per-rados pool quotas (objects, bytes)
* osd: refactored watch/notify infrastructure (fixes protocol, removes many bugs) (Sam Just)
* osd: support for improved hashing of PGs across OSDs via HASHPSPOOL pool flag and feature
* osd: tool to export, import, and delete PGs from an individual OSD data store
* osd: trim log more aggressively, avoid appearance of leak memory
* osd: validate snap collections on startup
* osd: verify snap collections on startup (Sam Just)
* radosgw: ACL grants in headers (Caleb Miles)
* radosgw: ability to listen to fastcgi via a port (Guilhem Lettron)
* radosgw: fix object copy onto self (Yehuda Sadeh)
* radosgw: misc fixes
* rbd-fuse: new tool, package
* rbd: avoid FIEMAP when importing from file (it can be buggy)
* rbd: incremental backups
* rbd: only set STRIPINGV2 feature if striping parameters are incompatible with old versions
* rbd: require --allow-shrink for resizing images down
* rbd: udevadm settle on map/unmap to avoid various races (Dan Mick)
* rbd: wait for udev to settle in strategic places (avoid spurious errors, failures)
* rgw: CORS support
* rgw: allow buckets with '_'
* rgw: fix Content-Length on 32-bit machines (Jan Harkes)
* rgw: fix log rotation
* rgw: fix object corruption on COPY to self
* rgw: fixed >4MB range requests (Jan Harkes)
* rgw: new sysvinit script for rpm-based systems
* rpm/deb: do not remove /var/lib/ceph on purge (v0.59 was the only release to do so)
* sysvinit: try to start all daemons despite early failures
* upstart: automatically set osd weight based on df (Guilhem Lettron)
* use less memory for logging by default
v0.60
-----
Upgrading
~~~~~~~~~
* Please note that the recently added librados 'list_snaps' function
call is in a state of flux and is changing slightly in v0.61. You
are advised not to make use of it in v0.59 or v0.60.
Notable Changes
~~~~~~~~~~~~~~~
* osd: make tracking of object snapshot metadata more efficient (Sam Just)
* osd: misc fixes to PG split (Sam Just)
* osd: improve journal corruption detection (Sam Just)
* osd: improve handling when disk fills up (David Zafman)
* osd: add 'noscrub', 'nodeepscrub' osdmap flags (David Zafman)
* osd: fix hang in 'journal aio = true' mode (Sage Weil)
* ceph-disk-prepare: fix mkfs args on old distros (Alexandre Marangone)
* ceph-disk-activate: improve multicluster support, error handling (Sage Weil)
* librbd: optionally wait for flush before enabling writeback (Josh Durgin)
* crush: update weights for all instances of an item, not just the first (Sage Weil)
* mon: shut down safely if disk approaches full (Joao Luis)
* rgw: fix Content-Length on 32-bit machines (Jan Harkes)
* mds: store and update backpointers/traces on directory, file objects (Sam Lang)
* mds: improve session cleanup (Sage Weil)
* mds, ceph-fuse: fix bugs with replayed requests after MDS restart (Sage Weil)
* ceph-fuse: enable kernel cache invalidation (Sam Lang)
* libcephfs: new topo API requests for Hadoop (Noah Watkins)
* ceph-fuse: session handling cleanup, bug fixes (Sage Weil)
* much code cleanup and optimization (Danny Al-Gaaf)
* use less memory for logging by default
* upstart: automatically set osd weight based on df (Guilhem Lettron)
* init-ceph, mkcephfs: close a few security holes with -a (Sage Weil)
* rpm/deb: do not remove /var/lib/ceph on purge (v0.59 was the only release to do so)
v0.59
-----
Upgrading
~~~~~~~~~
* The monitor is using a completely new storage strategy and
intra-cluster protocol. This means that v0.59 and pre-v0.59
monitors do not talk to each other. When you upgrade each one, it
will convert its local data store to the new format. Once you
upgrade a majority, the quorum will be formed using the new protocol
and the old monitors will be blocked out until they too get
upgraded. For this reason, we recommend not running a mixed-version
cluster for very long.
* ceph-mon now requires the creation of its data directory prior to
--mkfs, similarly to what happens on ceph-osd. This directory is no
longer automatically created, and custom scripts should be adjusted to
reflect just that.
Notable Changes
~~~~~~~~~~~~~~~
* mon: rearchitected to utilize single instance of paxos and a key/value store (Joao Luis)
* mon: new 'ceph df [detail]' command
* osd: support for improved hashing of PGs across OSDs via HASHPSPOOL pool flag and feature
* osd: refactored watch/notify infrastructure (fixes protocol, removes many bugs) (Sam Just)
* osd, librados: ability to list watchers (David Zafman)
* osd, librados: new listsnaps command (David Zafman)
* osd: trim log more aggressively, avoid appearance of leak memory
* osd: misc split fixes
* osd: a few journaling bug fixes
* osd: connection handling bug fixes
* rbd: avoid FIEMAP when importing from file (it can be buggy)
* librados: fix linger bugs (Josh Durgin)
* librbd: fixed flatten deadlock (Josh Durgin)
* rgw: fixed >4MB range requests (Jan Harkes)
* rgw: fix log rotation
* mds: allow xattrs on root
* ceph-fuse: fix statfs(2) reporting
* msgr: optionally tune TCP buffer size to avoid throughput collapse (Jim Schutt)
* consume less memory for logging by default
* always use system leveldb (Gary Lowell)
v0.58
-----
Upgrading
~~~~~~~~~
* The monitor now enforces that MDS names be unique. If you have
multiple daemons start with with the same id (e.g., ``mds.a``) the
second one will implicitly mark the first as failed. This makes
things less confusing and makes a daemon restart faster (we no
longer wait for the stopped daemon to time out) but existing
multi-mds configurations may need to be adjusted accordingly to give
daemons unique names.
Notable Changes
~~~~~~~~~~~~~~~
* librbd: fixed some locking issues with flatten (Josh Durgin)
* rbd: udevadm settle on map/unmap to avoid various races (Dan Mick)
* osd: move pg info, log into leveldb (== better performance) (David Zafman)
* osd: fix pg log trimming (avoids memory bloat on degraded clusters)
* osd: fixed bug in journal checksums (Sam Just)
* osd: verify snap collections on startup (Sam Just)
* ceph-disk-prepare/activate: support for dm-crypt (Alexandre Marangone)
* ceph-disk-prepare/activate: support for sysvinit, directories or partitions (not full disks)
* msgr: fixed race in connection reset
* msgr: fix comparison of IPv6 addresses (fixes monitor bringup via ceph-deploy, chef)
* radosgw: fix object copy onto self (Yehuda Sadeh)
* radosgw: ACL grants in headers (Caleb Miles)
* radosgw: ability to listen to fastcgi via a port (Guilhem Lettron)
* mds: new encoding for all data types (to allow forward/backward compatbility) (Greg Farnum)
* mds: fast failover between MDSs (enforce unique mds names)
* crush: ability to create, remove rules via CLI
* many many cleanups (Danny Al-Gaaf)
* buffer unit testing (Loic Dachary)
* fixed log rotation (Gary Lowell)
v0.57
-----
This development release has a lot of additional functionality
accumulated over the last couple months. Most of the bug fixes (with
the notable exception of the MDS related work) has already been
backported to v0.56.x, and is not mentioned here.
Upgrading
~~~~~~~~~
* The 'ceph osd pool delete <poolname>' and 'rados rmpool <poolname>'
now have safety interlocks with loud warnings that make you confirm
pool removal. Any scripts curenty rely on these functions zapping
data without confirmation need to be adjusted accordingly.
Notable Changes
~~~~~~~~~~~~~~~
* osd: default to libaio for the journal (some performance boost)
* osd: validate snap collections on startup
* osd: ceph-filestore-dump tool for debugging
* osd: deep-scrub omap keys/values
* ceph tool: some CLI interface cleanups
* mon: easy adjustment of crush tunables via 'ceph osd crush tunables ...'
* mon: easy creation of crush rules vai 'ceph osd rule ...'
* mon: approximate recovery, IO workload stats
* mon: avoid marking entire CRUSH subtrees out (e.g., if an entire rack goes offline)
* mon: safety check for pool deletion
* mon: new checks for identifying and reporting clock drift
* radosgw: misc fixes
* rbd: wait for udev to settle in strategic places (avoid spurious errors, failures)
* rbd-fuse: new tool, package
* mds, ceph-fuse: manage layouts via xattrs
* mds: misc bug fixes with clustered MDSs and failure recovery
* mds: misc bug fixes with readdir
* libcephfs: many fixes, cleanups with the Java bindings
* auth: ability to require new cephx signatures on messages (still off by default)
v0.56.7 "bobtail"
-----------------
This bobtail update fixes a range of radosgw bugs (including an easily
triggered crash from multi-delete), a possible data corruption issue
with power failure on XFS, and several OSD problems, including a
memory "leak" that will affect aged clusters.
Notable changes
~~~~~~~~~~~~~~~
* ceph-fuse: create finisher flags after fork()
* debian: fix prerm/postinst hooks; do not restart daemons on upgrade
* librados: fix async aio completion wakeup (manifests as rbd hang)
* librados: fix hang when osd becomes full and then not full
* librados: fix locking for aio completion refcounting
* librbd python bindings: fix stripe_unit, stripe_count
* librbd: make image creation default configurable
* mon: fix validation of mds ids in mon commands
* osd: avoid excessive disk updates during peering
* osd: avoid excessive memory usage on scrub
* osd: avoid heartbeat failure/suicide when scrubbing
* osd: misc minor bug fixes
* osd: use fdatasync instead of sync_file_range (may avoid xfs power-loss corruption)
* rgw: escape prefix correctly when listing objects
* rgw: fix copy attrs
* rgw: fix crash on multi delete
* rgw: fix locking/crash when using ops log socket
* rgw: fix usage logging
* rgw: handle deep uri resources
For more detailed information, see :download:`the complete changelog <changelog/v0.56.7.txt>`.
v0.56.6 "bobtail"
-----------------
Notable changes
~~~~~~~~~~~~~~~
* rgw: fix garbage collection
* rpm: fix package dependencies
For more detailed information, see :download:`the complete changelog <changelog/v0.56.6.txt>`.
v0.56.5 "bobtail"
-----------------
Upgrading
~~~~~~~~~
* ceph-disk[-prepare,-activate] behavior has changed in various ways.
There should not be any compatibility issues, but chef users should
be aware.
Notable changes
~~~~~~~~~~~~~~~
* mon: fix recording of quorum feature set (important for argonaut -> bobtail -> cuttlefish mon upgrades)
* osd: minor peering bug fixes
* osd: fix a few bugs when pools are renamed
* osd: fix occasionally corrupted pg stats
* osd: fix behavior when broken v0.56[.0] clients connect
* rbd: avoid FIEMAP ioctl on import (it is broken on some kernels)
* librbd: fixes for several request/reply ordering bugs
* librbd: only set STRIPINGV2 feature on new images when needed
* librbd: new async flush method to resolve qemu hangs (requires Qemu update as well)
* librbd: a few fixes to flatten
* ceph-disk: support for dm-crypt
* ceph-disk: many backports to allow bobtail deployments with ceph-deploy, chef
* sysvinit: do not stop starting daemons on first failure
* udev: fixed rules for redhat-based distros
* build fixes for raring
For more detailed information, see :download:`the complete changelog <changelog/v0.56.5.txt>`.
v0.56.4 "bobtail"
-----------------
Upgrading
~~~~~~~~~
* There is a fix in the syntax for the output of 'ceph osd tree --format=json'.
* The MDS disk format has changed from prior releases *and* from v0.57. In particular,
upgrades to v0.56.4 are safe, but you cannot move from v0.56.4 to v0.57 if you are using
the MDS for CephFS; you must upgrade directly to v0.58 (or later) instead.
Notable changes
~~~~~~~~~~~~~~~
* mon: fix bug in bringup with IPv6
* reduce default memory utilization by internal logging (all daemons)
* rgw: fix for bucket removal
* rgw: reopen logs after log rotation
* rgw: fix multipat upload listing
* rgw: don't copy object when copied onto self
* osd: fix caps parsing for pools with - or _
* osd: allow pg log trimming when degraded, scrubbing, recoverying (reducing memory consumption)
* osd: fix potential deadlock when 'journal aio = true'
* osd: various fixes for collection creation/removal, rename, temp collections
* osd: various fixes for PG split
* osd: deep-scrub omap key/value data
* osd: fix rare bug in journal replay
* osd: misc fixes for snapshot tracking
* osd: fix leak in recovery reservations on pool deletion
* osd: fix bug in connection management
* osd: fix for op ordering when rebalancing
* ceph-fuse: report file system size with correct units
* mds: get and set directory layout policies via virtual xattrs
* mds: on-disk format revision (see upgrading note above)
* mkcephfs, init-ceph: close potential security issues with predictable filenames
For more detailed information, see :download:`the complete changelog <changelog/v0.56.4.txt>`.
v0.56.3 "bobtail"
-----------------
This release has several bug fixes surrounding OSD stability. Most
significantly, an issue with OSDs being unresponsive shortly after
startup (and occasionally crashing due to an internal heartbeat check)
is resolved. Please upgrade.
Upgrading
~~~~~~~~~
* A bug was fixed in which the OSDMap epoch for PGs without any IO
requests was not recorded. If there are pools in the cluster that
are completely idle (for example, the ``data`` and ``metadata``
pools normally used by CephFS), and a large number of OSDMap epochs
have elapsed since the ``ceph-osd`` daemon was last restarted, those
maps will get reprocessed when the daemon restarts. This process
can take a while if there are a lot of maps. A workaround is to
'touch' any idle pools with IO prior to restarting the daemons after
packages are upgraded::
rados bench 10 write -t 1 -b 4096 -p {POOLNAME}
This will typically generate enough IO to touch every PG in the pool
without generating significant cluster load, and also cleans up any
temporary objects it creates.
Notable changes
~~~~~~~~~~~~~~~
* osd: flush peering work queue prior to start
* osd: persist osdmap epoch for idle PGs
* osd: fix and simplify connection handling for heartbeats
* osd: avoid crash on invalid admin command
* mon: fix rare races with monitor elections and commands
* mon: enforce that OSD reweights be between 0 and 1 (NOTE: not CRUSH weights)
* mon: approximate client, recovery bandwidth logging
* radosgw: fixed some XML formatting to conform to Swift API inconsistency
* radosgw: fix usage accounting bug; add repair tool
* radosgw: make fallback URI configurable (necessary on some web servers)
* librbd: fix handling for interrupted 'unprotect' operations
* mds, ceph-fuse: allow file and directory layouts to be modified via virtual xattrs
For more detailed information, see :download:`the complete changelog <changelog/v0.56.3.txt>`.
v0.56.2 "bobtail"
-----------------
This release has a wide range of bug fixes, stability improvements, and some performance improvements. Please upgrade.
Upgrading
~~~~~~~~~
* The meaning of the 'osd scrub min interval' and 'osd scrub max
interval' has changed slightly. The min interval used to be
meaningless, while the max interval would only trigger a scrub if
the load was sufficiently low. Now, the min interval option works
the way the old max interval did (it will trigger a scrub after this
amount of time if the load is low), while the max interval will
force a scrub regardless of load. The default options have been
adjusted accordingly. If you have customized these in ceph.conf,
please review their values when upgrading.
* CRUSH maps that are generated by default when calling ``ceph-mon
--mkfs`` directly now distribute replicas across hosts instead of
across OSDs. Any provisioning tools that are being used by Ceph may
be affected, although probably for the better, as distributing across
hosts is a much more commonly sought behavior. If you use
``mkcephfs`` to create the cluster, the default CRUSH rule is still
inferred by the number of hosts and/or racks in the initial ceph.conf.
Notable changes
~~~~~~~~~~~~~~~
* osd: snapshot trimming fixes
* osd: scrub snapshot metadata
* osd: fix osdmap trimming
* osd: misc peering fixes
* osd: stop heartbeating with peers if internal threads are stuck/hung
* osd: PG removal is friendlier to other workloads
* osd: fix recovery start delay (was causing very slow recovery)
* osd: fix scheduling of explicitly requested scrubs
* osd: fix scrub interval config options
* osd: improve recovery vs client io tuning
* osd: improve 'slow request' warning detail for better diagnosis
* osd: default CRUSH map now distributes across hosts, not OSDs
* osd: fix crash on 32-bit hosts triggered by librbd clients
* librbd: fix error handling when talking to older OSDs
* mon: fix a few rare crashes
* ceph command: ability to easily adjust CRUSH tunables
* radosgw: object copy does not copy source ACLs
* rados command: fix omap command usage
* sysvinit script: set ulimit -n properly on remote hosts
* msgr: fix narrow race with message queuing
* fixed compilation on some old distros (e.g., RHEL 5.x)
For more detailed information, see :download:`the complete changelog <changelog/v0.56.2.txt>`.
v0.56.1 "bobtail"
-----------------
This release has two critical fixes. Please upgrade.
Upgrading
~~~~~~~~~
* There is a protocol compatibility problem between v0.56 and any
other version that is now fixed. If your radosgw or RBD clients are
running v0.56, they will need to be upgraded too. If they are
running a version prior to v0.56, they can be left as is.
Notable changes
~~~~~~~~~~~~~~~
* osd: fix commit sequence for XFS, ext4 (or any other non-btrfs) to prevent data loss on power cycle or kernel panic
* osd: fix compatibility for CALL operation
* osd: process old osdmaps prior to joining cluster (fixes slow startup)
* osd: fix a couple of recovery-related crashes
* osd: fix large io requests when journal is in (non-default) aio mode
* log: fix possible deadlock in logging code
For more detailed information, see :download:`the complete changelog <changelog/v0.56.1.txt>`.
v0.56 "bobtail"
---------------
Bobtail is the second stable release of Ceph, named in honor of the
`Bobtail Squid`: http://en.wikipedia.org/wiki/Bobtail_squid.
Key features since v0.48 "argonaut"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Object Storage Daemon (OSD): improved threading, small-io performance, and performance during recovery
* Object Storage Daemon (OSD): regular "deep" scrubbing of all stored data to detect latent disk errors
* RADOS Block Device (RBD): support for copy-on-write clones of images.
* RADOS Block Device (RBD): better client-side caching.
* RADOS Block Device (RBD): advisory image locking
* Rados Gateway (RGW): support for efficient usage logging/scraping (for billing purposes)
* Rados Gateway (RGW): expanded S3 and Swift API coverage (e.g., POST, multi-object delete)
* Rados Gateway (RGW): improved striping for large objects
* Rados Gateway (RGW): OpenStack Keystone integration
* RPM packages for Fedora, RHEL/CentOS, OpenSUSE, and SLES
* mkcephfs: support for automatically formatting and mounting XFS and ext4 (in addition to btrfs)
Upgrading
~~~~~~~~~
Please refer to the document `Upgrading from Argonaut to Bobtail`_ for details.
.. _Upgrading from Argonaut to Bobtail: ../install/upgrading-ceph/#upgrading-from-argonaut-to-bobtail
* Cephx authentication is now enabled by default (since v0.55).
Upgrading a cluster without adjusting the Ceph configuration will
likely prevent the system from starting up on its own. We recommend
first modifying the configuration to indicate that authentication is
disabled, and only then upgrading to the latest version.::
auth client required = none
auth service required = none
auth cluster required = none
* Ceph daemons can be upgraded one-by-one while the cluster is online
and in service.
* The ``ceph-osd`` daemons must be upgraded and restarted *before* any
``radosgw`` daemons are restarted, as they depend on some new
ceph-osd functionality. (The ``ceph-mon``, ``ceph-osd``, and
``ceph-mds`` daemons can be upgraded and restarted in any order.)
* Once each individual daemon has been upgraded and restarted, it
cannot be downgraded.
* The cluster of ``ceph-mon`` daemons will migrate to a new internal
on-wire protocol once all daemons in the quorum have been upgraded.
Upgrading only a majority of the nodes (e.g., two out of three) may
expose the cluster to a situation where a single additional failure
may compromise availability (because the non-upgraded daemon cannot
participate in the new protocol). We recommend not waiting for an
extended period of time between ``ceph-mon`` upgrades.
* The ops log and usage log for radosgw are now off by default. If
you need these logs (e.g., for billing purposes), you must enable
them explicitly. For logging of all operations to objects in the
``.log`` pool (see ``radosgw-admin log ...``)::
rgw enable ops log = true
For usage logging of aggregated bandwidth usage (see ``radosgw-admin
usage ...``)::
rgw enable usage log = true
* You should not create or use "format 2" RBD images until after all
``ceph-osd`` daemons have been upgraded. Note that "format 1" is
still the default. You can use the new ``ceph osd ls`` and
``ceph tell osd.N version`` commands to doublecheck your cluster.
``ceph osd ls`` will give a list of all OSD IDs that are part of the
cluster, and you can use that to write a simple shell loop to display
all the OSD version strings: ::
for i in $(ceph osd ls); do
ceph tell osd.${i} version
done
Compatibility changes
~~~~~~~~~~~~~~~~~~~~~
* The 'ceph osd create [<uuid>]' command now rejects an argument that
is not a UUID. (Previously it would take take an optional integer
OSD id.) This correct syntax has been 'ceph osd create [<uuid>]'
since v0.47, but the older calling convention was being silently
ignored.
* The CRUSH map root nodes now have type ``root`` instead of type
``pool``. This avoids confusion with RADOS pools, which are not
directly related. Any scripts or tools that use the ``ceph osd
crush ...`` commands may need to be adjusted accordingly.
* The ``ceph osd pool create <poolname> <pgnum>`` command now requires
the ``pgnum`` argument. Previously this was optional, and would
default to 8, which was almost never a good number.
* Degraded mode (when there fewer than the desired number of replicas)
is now more configurable on a per-pool basis, with the min_size
parameter. By default, with min_size 0, this allows I/O to objects
with N - floor(N/2) replicas, where N is the total number of
expected copies. Argonaut behavior was equivalent to having min_size
= 1, so I/O would always be possible if any completely up to date
copy remained. min_size = 1 could result in lower overall
availability in certain cases, such as flapping network partitions.
* The sysvinit start/stop script now defaults to adjusting the max
open files ulimit to 16384. On most systems the default is 1024, so
this is an increase and won't break anything. If some system has a
higher initial value, however, this change will lower the limit.
The value can be adjusted explicitly by adding an entry to the
``ceph.conf`` file in the appropriate section. For example::
[global]
max open files = 32768
* 'rbd lock list' and 'rbd showmapped' no longer use tabs as
separators in their output.
* There is configurable limit on the number of PGs when creating a new
pool, to prevent a user from accidentally specifying a ridiculous
number for pg_num. It can be adjusted via the 'mon max pool pg num'
option on the monitor, and defaults to 65536 (the current max
supported by the Linux kernel client).
* The osd capabilities associated with a rados user have changed
syntax since 0.48 argonaut. The new format is mostly backwards
compatible, but there are two backwards-incompatible changes:
* specifying a list of pools in one grant, i.e.
'allow r pool=foo,bar' is now done in separate grants, i.e.
'allow r pool=foo, allow r pool=bar'.
* restricting pool access by pool owner ('allow r uid=foo') is
removed. This feature was not very useful and unused in practice.
The new format is documented in the ceph-authtool man page.
* 'rbd cp' and 'rbd rename' use rbd as the default destination pool,
regardless of what pool the source image is in. Previously they
would default to the same pool as the source image.
* 'rbd export' no longer prints a message for each object written. It
just reports percent complete like other long-lasting operations.
* 'ceph osd tree' now uses 4 decimal places for weight so output is
nicer for humans
* Several monitor operations are now idempotent:
* ceph osd pool create
* ceph osd pool delete
* ceph osd pool mksnap
* ceph osd rm
* ceph pg <pgid> revert
Notable changes
~~~~~~~~~~~~~~~
* auth: enable cephx by default
* auth: expanded authentication settings for greater flexibility
* auth: sign messages when using cephx
* build fixes for Fedora 18, CentOS/RHEL 6
* ceph: new 'osd ls' and 'osd tell <osd.N> version' commands
* ceph-debugpack: misc improvements
* ceph-disk-prepare: creates and labels GPT partitions
* ceph-disk-prepare: support for external journals, default mount/mkfs options, etc.
* ceph-fuse/libcephfs: many misc fixes, admin socket debugging
* ceph-fuse: fix handling for .. in root directory
* ceph-fuse: many fixes (including memory leaks, hangs)
* ceph-fuse: mount helper (mount.fuse.ceph) for use with /etc/fstab
* ceph.spec: misc packaging fixes
* common: thread pool sizes can now be adjusted at runtime
* config: $pid is now available as a metavariable
* crush: default root of tree type is now 'root' instead of 'pool' (to avoid confusiong wrt rados pools)
* crush: fixed retry behavior with chooseleaf via tunable
* crush: tunables documented; feature bit now present and enforced
* libcephfs: java wrapper
* librados: several bug fixes (rare races, locking errors)
* librados: some locking fixes
* librados: watch/notify fixes, misc memory leaks
* librbd: a few fixes to 'discard' support
* librbd: fine-grained striping feature
* librbd: fixed memory leaks
* librbd: fully functional and documented image cloning
* librbd: image (advisory) locking
* librbd: improved caching (of object non-existence)
* librbd: 'flatten' command to sever clone parent relationship
* librbd: 'protect'/'unprotect' commands to prevent clone parent from being deleted
* librbd: clip requests past end-of-image.
* librbd: fixes an issue with some windows guests running in qemu (remove floating point usage)
* log: fix in-memory buffering behavior (to only write log messages on crash)
* mds: fix ino release on abort session close, relative getattr path, mds shutdown, other misc items
* mds: misc fixes
* mkcephfs: fix for default keyring, osd data/journal locations
* mkcephfs: support for formatting xfs, ext4 (as well as btrfs)
* init: support for automatically mounting xfs and ext4 osd data directories
* mon, radosgw, ceph-fuse: fixed memory leaks
* mon: improved ENOSPC, fs error checking
* mon: less-destructive ceph-mon --mkfs behavior
* mon: misc fixes
* mon: more informative info about stuck PGs in 'health detail'
* mon: information about recovery and backfill in 'pg <pgid> query'
* mon: new 'osd crush create-or-move ...' command
* mon: new 'osd crush move ...' command lets you rearrange your CRUSH hierarchy
* mon: optionally dump 'osd tree' in json
* mon: configurable cap on maximum osd number (mon max osd)
* mon: many bug fixes (various races causing ceph-mon crashes)
* mon: new on-disk metadata to facilitate future mon changes (post-bobtail)
* mon: election bug fixes
* mon: throttle client messages (limit memory consumption)
* mon: throttle osd flapping based on osd history (limits osdmap ΄thrashing' on overloaded or unhappy clusters)
* mon: 'report' command for dumping detailed cluster status (e.g., for use when reporting bugs)
* mon: osdmap flags like noup, noin now cause a health warning
* msgr: improved failure handling code
* msgr: many bug fixes
* osd, mon: honor new 'nobackfill' and 'norecover' osdmap flags
* osd, mon: use feature bits to lock out clients lacking CRUSH tunables when they are in use
* osd: backfill reservation framework (to avoid flooding new osds with backfill data)
* osd: backfill target reservations (improve performance during recovery)
* osd: better tracking of recent slow operations
* osd: capability grammar improvements, bug fixes
* osd: client vs recovery io prioritization
* osd: crush performance improvements
* osd: default journal size to 5 GB
* osd: experimental support for PG "splitting" (pg_num adjustment for existing pools)
* osd: fix memory leak on certain error paths
* osd: fixed detection of EIO errors from fs on read
* osd: major refactor of PG peering and threading
* osd: many bug fixes
* osd: more/better dump info about in-progress operations
* osd: new caps structure (see compatibility notes)
* osd: new 'deep scrub' will compare object content across replicas (once per week by default)
* osd: new 'lock' rados class for generic object locking
* osd: optional 'min' pg size
* osd: recovery reservations
* osd: scrub efficiency improvement
* osd: several out of order reply bug fixes
* osd: several rare peering cases fixed
* osd: some performance improvements related to request queuing
* osd: use entire device if journal is a block device
* osd: use syncfs(2) when kernel supports it, even if glibc does not
* osd: various fixes for out-of-order op replies
* rados: ability to copy, rename pools
* rados: bench command now cleans up after itself
* rados: 'cppool' command to copy rados pools
* rados: 'rm' now accepts a list of objects to be removed
* radosgw: POST support
* radosgw: REST API for managing usage stats
* radosgw: fix bug in bucket stat updates
* radosgw: fix copy-object vs attributes
* radosgw: fix range header for large objects, ETag quoting, GMT dates, other compatibility fixes
* radosgw: improved garbage collection framework
* radosgw: many small fixes, cleanups
* radosgw: openstack keystone integration
* radosgw: stripe large (non-multipart) objects
* radosgw: support for multi-object deletes
* radosgw: support for swift manifest objects
* radosgw: vanity bucket dns names
* radosgw: various API compatibility fixes
* rbd: import from stdin, export to stdout
* rbd: new 'ls -l' option to view images with metadata
* rbd: use generic id and keyring options for 'rbd map'
* rbd: don't issue usage on errors
* udev: fix symlink creation for rbd images containing partitions
* upstart: job files for all daemon types (not enabled by default)
* wireshark: ceph protocol dissector patch updated
v0.54
-----
Upgrading
~~~~~~~~~
* The osd capabilities associated with a rados user have changed
syntax since 0.48 argonaut. The new format is mostly backwards
compatible, but there are two backwards-incompatible changes:
* specifying a list of pools in one grant, i.e.
'allow r pool=foo,bar' is now done in separate grants, i.e.
'allow r pool=foo, allow r pool=bar'.
* restricting pool access by pool owner ('allow r uid=foo') is
removed. This feature was not very useful and unused in practice.
The new format is documented in the ceph-authtool man page.
* Bug fixes to the new osd capability format parsing properly validate
the allowed operations. If an existing rados user gets permissions
errors after upgrading, its capabilities were probably
misconfigured. See the ceph-authtool man page for details on osd
capabilities.
* 'rbd lock list' and 'rbd showmapped' no longer use tabs as
separators in their output.
v0.48.3 "argonaut"
------------------
This release contains a critical fix that can prevent data loss or
corruption after a power loss or kernel panic event. Please upgrade
immediately.
Upgrading
~~~~~~~~~
* If you are using the undocumented ``ceph-disk-prepare`` and
``ceph-disk-activate`` tools, they have several new features and
some additional functionality. Please review the changes in
behavior carefully before upgrading.
* The .deb packages now require xfsprogs.
Notable changes
~~~~~~~~~~~~~~~
* filestore: fix op_seq write order (fixes journal replay after power loss)
* osd: fix occasional indefinitely hung "slow" request
* osd: fix encoding for pool_snap_info_t when talking to pre-v0.48 clients
* osd: fix heartbeat check
* osd: reduce log noise about rbd watch
* log: fixes for deadlocks in the internal logging code
* log: make log buffer size adjustable
* init script: fix for 'ceph status' across machines
* radosgw: fix swift error handling
* radosgw: fix swift authentication concurrency bug
* radosgw: don't cache large objects
* radosgw: fix some memory leaks
* radosgw: fix timezone conversion on read
* radosgw: relax date format restrictions
* radosgw: fix multipart overwrite
* radosgw: stop processing requests on client disconnect
* radosgw: avoid adding port to url that already has a port
* radosgw: fix copy to not override ETAG
* common: make parsing of ip address lists more forgiving
* common: fix admin socket compatibility with old protocol (for collectd plugin)
* mon: drop dup commands on paxos reset
* mds: fix loner selection for multiclient workloads
* mds: fix compat bit checks
* ceph-fuse: fix segfault on startup when keyring is missing
* ceph-authtool: fix usage
* ceph-disk-activate: misc backports
* ceph-disk-prepare: misc backports
* debian: depend on xfsprogs (we use xfs by default)
* rpm: build rpms, some related Makefile changes
For more detailed information, see :download:`the complete changelog <changelog/v0.48.3argonaut.txt>`.
v0.48.2 "argonaut"
------------------
Upgrading
~~~~~~~~~
* The default search path for keyring files now includes /etc/ceph/ceph.$name.keyring. If such files are present on your cluster, be aware that by default they may now be used.
* There are several changes to the upstart init files. These have not been previously documented or recommended. Any existing users should review the changes before upgrading.
* The ceph-disk-prepare and ceph-disk-active scripts have been updated significantly. These have not been previously documented or recommended. Any existing users should review the changes before upgrading.
Notable changes
~~~~~~~~~~~~~~~
* mkcephfs: fix keyring generation for mds, osd when default paths are used
* radosgw: fix bug causing occasional corruption of per-bucket stats
* radosgw: workaround to avoid previously corrupted stats from going negative
* radosgw: fix bug in usage stats reporting on busy buckets
* radosgw: fix Content-Range: header for objects bigger than 2 GB.
* rbd: avoid leaving watch acting when command line tool errors out (avoids 30s delay on subsequent operations)
* rbd: friendlier use of --pool/--image options for import (old calling convention still works)
* librbd: fix rare snapshot creation race (could "lose" a snap when creation is concurrent)
* librbd: fix discard handling when spanning holes
* librbd: fix memory leak on discard when caching is enabled
* objecter: misc fixes for op reordering
* objecter: fix for rare startup-time deadlock waiting for osdmap
* ceph: fix usage
* mon: reduce log noise about "check_sub"
* ceph-disk-activate: misc fixes, improvements
* ceph-disk-prepare: partition and format osd disks automatically
* upstart: start everyone on a reboot
* upstart: always update the osd crush location on start if specified in the config
* config: add /etc/ceph/ceph.$name.keyring to default keyring search path
* ceph.spec: don't package crush headers
For more detailed information, see :download:`the complete changelog <changelog/v0.48.2argonaut.txt>`.
v0.48.1 "argonaut"
------------------
Upgrading
~~~~~~~~~
* The radosgw usage trim function was effectively broken in v0.48. Earlier it would remove more usage data than what was requested. This is fixed in v0.48.1, but the fix is incompatible. The v0.48 radosgw-admin tool cannot be used to initiate the trimming; please use the v0.48.1 version.
* v0.48.1 now explicitly indicates support for the CRUSH_TUNABLES feature. No other version of Ceph requires this, yet, but future versions will when the tunables are adjusted from their historical defaults.
* There are no other compatibility changes between v0.48.1 and v0.48.
Notable changes
~~~~~~~~~~~~~~~
* mkcephfs: use default 'keyring', 'osd data', 'osd journal' paths when not specified in conf
* msgr: various fixes to socket error handling
* osd: reduce scrub overhead
* osd: misc peering fixes (past_interval sharing, pgs stuck in 'peering' states)
* osd: fail on EIO in read path (do not silently ignore read errors from failing disks)
* osd: avoid internal heartbeat errors by breaking some large transactions into pieces
* osd: fix osdmap catch-up during startup (catch up and then add daemon to osdmap)
* osd: fix spurious 'misdirected op' messages
* osd: report scrub status via 'pg ... query'
* rbd: fix race when watch registrations are resent
* rbd: fix rbd image id assignment scheme (new image data objects have slightly different names)
* rbd: fix perf stats for cache hit rate
* rbd tool: fix off-by-one in key name (crash when empty key specified)
* rbd: more robust udev rules
* rados tool: copy object, pool commands
* radosgw: fix in usage stats trimming
* radosgw: misc API compatibility fixes (date strings, ETag quoting, swift headers, etc.)
* ceph-fuse: fix locking in read/write paths
* mon: fix rare race corrupting on-disk data
* config: fix admin socket 'config set' command
* log: fix in-memory log event gathering
* debian: remove crush headers, include librados-config
* rpm: add ceph-disk-{activate, prepare}
For more detailed information, see :download:`the complete changelog <changelog/v0.48.1argonaut.txt>`.
v0.48 "argonaut"
----------------
Upgrading
~~~~~~~~~
* This release includes a disk format upgrade. Each ceph-osd daemon, upon startup, will migrate its locally stored data to the new format. This process can take a while (for large object counts, even hours), especially on non-btrfs file systems.
* To keep the cluster available while the upgrade is in progress, we recommend you upgrade a storage node or rack at a time, and wait for the cluster to recover each time. To prevent the cluster from moving data around in response to the OSD daemons being down for minutes or hours, you may want to::
ceph osd set noout
This will prevent the cluster from marking down OSDs as "out" and re-replicating the data elsewhere. If you do this, be sure to clear the flag when the upgrade is complete::
ceph osd unset noout
* There is a encoding format change internal to the monitor cluster. The monitor daemons are careful to switch to the new format only when all members of the quorum support it. However, that means that a partial quorum with new code may move to the new format, and a recovering monitor running old code will be unable to join (it will crash). If this occurs, simply upgrading the remaining monitor will resolve the problem.
* The ceph tool's -s and -w commands from previous versions are incompatible with this version. Upgrade your client tools at the same time you upgrade the monitors if you rely on those commands.
* It is not possible to downgrade from v0.48 to a previous version.
Notable changes
~~~~~~~~~~~~~~~
* osd: stability improvements
* osd: capability model simplification
* osd: simpler/safer --mkfs (no longer removes all files; safe to re-run on active osd)
* osd: potentially buggy FIEMAP behavior disabled by default
* rbd: caching improvements
* rbd: improved instrumentation
* rbd: bug fixes
* radosgw: new, scalable usage logging infrastructure
* radosgw: per-user bucket limits
* mon: streamlined process for setting up authentication keys
* mon: stability improvements
* mon: log message throttling
* doc: improved documentation (ceph, rbd, radosgw, chef, etc.)
* config: new default locations for daemon keyrings
* config: arbitrary variable substitutions
* improved 'admin socket' daemon admin interface (ceph --admin-daemon ...)
* chef: support for multiple monitor clusters
* upstart: basic support for monitors, mds, radosgw; osd support still a work in progress.
The new default keyring locations mean that when enabling authentication (``auth supported = cephx``), keyring locations do not need to be specified if the keyring file is located inside the daemon's data directory (``/var/lib/ceph/$type/ceph-$id`` by default).
There is also a lot of librbd code in this release that is laying the groundwork for the upcoming layering functionality, but is not actually used. Likewise, the upstart support is still incomplete and not recommended; we will backport that functionality later if it turns out to be non-disruptive.
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