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doc/release-notes: fill in some firefly history

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Signed-off-by: Sage Weil <sage@inktank.com>
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Sage Weil 2014-03-11 14:31:07 -07:00
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@ -51,22 +51,443 @@ Upgrading from v0.77
Upgrading from v0.72 Emperor
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* See notes above.
* The 'ceph -s' or 'ceph status' command's 'num_in_osds' field in the
JSON and XML output has been changed from a string to an int.
* The recently added 'ceph mds set allow_new_snaps' command's syntax
has changed slightly; it is now 'ceph mds set allow_new_snaps true'.
The 'unset' command has been removed; instead, set the value to
'false'.
* The syntax for allowing snapshots is now 'mds set allow_new_snaps
<true|false>' instead of 'mds <set,unset> allow_new_snaps'.
* 'rbd ls' on a pool which never held rbd images now exits with code
0. It outputs nothing in plain format, or an empty list in
non-plain format. This is consistent with the behavior for a pool
which used to hold images, but contains none. Scripts relying on
this behavior should be updated.
* The MDS requires a new OSD operation TMAP2OMAP, added in this release. When
upgrading, be sure to upgrade and restart the ceph-osd daemons before the
ceph-mds daemon. The MDS will refuse to start if any up OSDs do not support
the new feature.
* The 'ceph mds set_max_mds N' command is now deprecated in favor of
'ceph mds set max_mds N'.
* The 'osd pool create ...' syntax has changed for erasure pools.
* The default CRUSH rules and layouts are now using the latest and
greatest tunables and defaults. Clusters using the old values will
now present with a health WARN state. This can be disabled by
adding 'mon warn on legacy crush tunables = false' to ceph.conf.
* We now default to the 'bobtail' CRUSH tunable values that are first supported
by Ceph clients in bobtail (v0.56) and Linux kernel version v3.9. If you
plan to access a newly created Ceph cluster with an older kernel client, you
should use 'ceph osd crush tunables legacy' to switch back to the legacy
behavior. Note that making that change will likely result in some data
movement in the system, so adjust the setting before populating the new
cluster with data.
* We now set the HASHPSPOOL flag on newly created pools (and new
clusters) by default. Support for this flag first appeared in
v0.64; v0.67 Dumpling is the first major release that supports it.
It is first supported by the Linux kernel version v3.9. If you plan
to access a newly created Ceph cluster with an older kernel or
clients (e.g, librados, librbd) from a pre-dumpling Ceph release,
you should add 'osd pool default flag hashpspool = false' to the
'[global]' section of your 'ceph.conf' prior to creating your
monitors (e.g., after 'ceph-deploy new' but before 'ceph-deploy mon
create ...').
* The configuration option 'osd pool default crush rule' is deprecated
and replaced with 'osd pool default crush replicated ruleset'. 'osd
pool default crush rule' takes precedence for backward compatibility
and a deprecation warning is displayed when it is used.
* 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.
Upgrading from v0.67 Dumpling
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* See notes above.
* 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 v0.77
~~~~~~~~~~~~~~~~~~~~~~~~~~~
TBD
Notable changes since v0.72 Emperor
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* buffer: some zero-copy groundwork (Josh Durgin)
* build: misc improvements (Ken Dreyer)
* ceph-crush-location: new hook for setting CRUSH location of osd daemons on start
* ceph-disk: avoid fd0 (Loic Dachary)
* ceph-disk: generalize path names, add tests (Loic Dachary)
* ceph-disk: misc improvements for puppet (Loic Dachary)
* ceph-disk: several bug fixes (Loic Dachary)
* ceph-fuse: fix race for sync reads (Sage Weil)
* ceph-kvstore-tool: expanded command set and capabilities (Joao Eduardo Luis)
* ceph.spec: fix build dependency (Loic Dachary)
* common: bloom filter improvements (Sage Weil)
* common: check preexisting admin socket for active daemon before removing (Loic Dachary)
* common: fix aligned buffer allocation (Loic Dachary)
* common: fix config variable substitution (Loic Dachary)
* common: portability changes to support libc++ (Noah Watkins)
* common: switch to unordered_map from hash_map (Noah Watkins)
* config: recursive metavariable expansion (Loic Dachary)
* crush: default to bobtail tunables (Sage Weil)
* crush: fix off-by-one error in recent refactor (Sage Weil)
* crush: many additional tests (Loic Dachary)
* crush: misc fixes, cleanups (Loic Dachary)
* crush: new rule steps to adjust retry attempts (Sage Weil)
* crush, osd: s/rep/replicated/ for less confusion (Loic Dachary)
* crush: refactor descend_once behavior; support set_choose*_tries for replicated rules (Sage Weil)
* crush: usability and test improvements (Loic Dachary)
* debian: integrate misc fixes from downstream packaging (James Page)
* doc: big update to install docs (John Wilkins)
* doc: many many install doc improvements (John Wilkins)
* doc: many many updates (John Wilkins)
* doc: misc fixes (David Moreau Simard, Kun Huang)
* erasure-code: improve buffer alignment (Loic Dachary)
* erasure-code: rewrite region-xor using vector operations (Andreas Peters)
* libcephfs: fix resource leak (Zheng Yan)
* librados: add C API coverage for atomic write operations (Christian Marie)
* librados: fix throttle leak (and eventual deadlock) (Josh Durgin)
* librados, osd: new TMAP2OMAP operation (Yan, Zheng)
* librados: read directly into user buffer (Rutger ter Borg)
* librbd: fix use-after-free aio completion bug #5426 (Josh Durgin)
* librbd: localize/distribute parent reads (Sage Weil)
* mailmap: affiliation updates (Loic Dachary)
* mailmap updates (Loic Dachary)
* many portability improvements (Noah Watkins)
* many unit test improvements (Loic Dachary)
* mds: always store backtrace in default pool (Yan, Zheng)
* mds: fix cap migration behavior (Yan, Zheng)
* mds: fix client session flushing (Yan, Zheng)
* mds: fix many many multi-mds bugs (Yan, Zheng)
* mds: fix readdir end check (Zheng Yan)
* mds: fix Resetter locking (Alexandre Oliva)
* mds: inline data support (Li Wang, Yunchuan Wen)
* mds: store directories in omap instead of tmap (Yan, Zheng)
* mds: update old-format backtraces opportunistically (Zheng Yan)
* misc cleanups from coverity (Xing Lin)
* misc coverity fixes (Xing Lin, Li Wang, Danny Al-Gaaf)
* misc portability fixes (Noah Watkins, Alan Somers)
* misc portability fixes (Noah Watkins, Christophe Courtaut, Alan Somers, huanjun)
* misc portability work (Noah Watkins)
* mon: add 'mon getmap EPOCH' (Joao Eduardo Luis)
* mon: allow adjustment of cephfs max file size via 'ceph mds set max_file_size' (Sage Weil)
* mon: allow debug quorum_{enter,exit} commands via admin socket
* mon: change mds allow_new_snaps syntax to be more consistent (Sage Weil)
* mon: clean up initial crush rule creation (Loic Dachary)
* mon: collect misc metadata about osd (os, kernel, etc.), new 'osd metadata' command (Sage Weil)
* mon: do not create erasure rules by default (Sage Weil)
* mon: do not generate spurious MDSMaps in certain cases (Sage Weil)
* mon: do not use keyring if auth = none (Loic Dachary)
* mon: fix pg_temp leaks (Joao Eduardo Luis)
* mon: handle more whitespace (newline, tab) in mon capabilities (Sage Weil)
* mon: improve (replicate or erasure) pool creation UX (Loic Dachary)
* mon: infrastructure to handle mixed-version mon cluster and cli/rest API (Greg Farnum)
* mon: MForward tests (Loic Dachary)
* mon: mkfs now idempotent (Loic Dachary)
* mon: only seed new osdmaps to current OSDs (Sage Weil)
* mon, osd: create erasure style crush rules (Loic Dachary, Sage Weil)
* mon: 'osd crush show-tunables' (Sage Weil)
* mon: 'osd dump' dumps pool snaps as array, not object (Dan Mick)
* mon, osd: new 'erasure' pool type (still not fully supported)
* mon: persist quorum features to disk (Greg Farnum)
* 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: track osd features in OSDMap (Joao Luis, David Zafman)
* mon: trim MDSMaps (Joao Eduardo Luis)
* mon: warn if crush has non-optimal tunables (Sage Weil)
* mount.ceph: add -n for autofs support (Steve Stock)
* msgr: fix messenger restart race (Xihui He)
* osd: add HitSet tracking for read ops (Sage Weil, Greg Farnum)
* osd: avoid touching leveldb for some xattrs (Haomai Wang, Sage Weil)
* osd: backfill to multiple targets (David Zafman)
* osd: backfill to osds not in acting set (David Zafman)
* osd: cache pool support for snapshots (Sage Weil)
* osd: client IO path changes for EC (Samuel Just)
* osd: default to 3x replication
* osd: do not include backfill targets in acting set (David Zafman)
* osd: enable new hashpspool layout by default (Sage Weil)
* osd: erasure plugin benchmarking tool (Loic Dachary)
* osd: fix and cleanup misc backfill issues (David Zafman)
* osd: fix copy-get omap bug (Sage Weil)
* osd: fix linux kernel version detection (Ilya Dryomov)
* osd: fix memstore segv (Haomai Wang)
* osd: fix object_info_t encoding bug from emperor (Sam Just)
* osd: fix omap_clear operation to not zap xattrs (Sam Just, Yan, Zheng)
* osd: fix several bugs with tier infrastructure
* osd: fix throttle thread (Haomai Wang)
* osd: fix XFS detection (Greg Farnum, Sushma Gurram)
* osd: generalize scrubbing infrastructure to allow EC (David Zafman)
* osd: handle more whitespace (newline, tab) in osd capabilities (Sage Weil)
* osd: ignore num_objects_dirty on scrub for old pools (Sage Weil)
* osd: improve locking in fd lookup cache (Samuel Just, Greg Farnum)
* osd: include more info in pg query result (Sage Weil)
* osd, librados: fix full cluster handling (Josh Durgin)
* osd: new 'chassis' type in default crush hierarchy (Sage Weil)
* osd: new keyvaluestore-dev backend based on leveldb (Haomai Wang)
* osd: new OSDMap encoding (Greg Farnum)
* osd: preliminary cache pool support (no snaps) (Greg Farnum, Sage Weil)
* osd: requery unfound on stray notify (#6909) (Samuel Just)
* osd: some PGBackend infrastructure (Samuel Just)
* osd: support for new 'memstore' (memory-backed) backend (Sage Weil)
* osd: track erasure compatibility (David Zafman)
* rados: add 'crush location', smart replica selection/balancing (Sage Weil)
* rados: some performance optimizations (Yehuda Sadeh)
* rados tool: fix listomapvals (Josh Durgin)
* rbd: add 'rbdmap' init script for mapping rbd images on book (Adam Twardowski)
* rbd: add rbdmap support for upstart (Laurent Barbe)
* rbd: expose kernel rbd client options via 'rbd map' (Ilya Dryomov)
* rbd: fix bench-write command (Hoamai Wang)
* rbd: make 'rbd list' return empty list and success on empty pool (Josh Durgin)
* rbd: prevent deletion of images with watchers (Ilya Dryomov)
* rbd: support for 4096 mapped devices, up from ~250 (Ilya Dryomov)
* rest-api: do not fail when no OSDs yet exist (Dan Mick)
* rgw: add 'status' command to sysvinit script (David Moreau Simard)
* rgw: allow multiple frontends (Yehuda Sadeh)
* rgw: convert bucket info to new format on demand (Yehuda Sadeh)
* rgw: fix error setting empty owner on ACLs (Yehuda Sadeh)
* rgw: fix fastcgi deadlock (do not return data from librados callback) (Yehuda Sadeh)
* rgw: fix many-part multipart uploads (Yehuda Sadeh)
* rgw: fix misc CORS bugs (Robin H. Johnson)
* rgw: fix object placement read op (Yehuda Sadeh)
* rgw: fix reading bucket policy (#6940)
* rgw: fix read_user_buckets 'max' behavior (Yehuda Sadeh)
* rgw: fix several CORS bugs (Robin H. Johnson)
* rgw: fix use-after-free when releasing completion handle (Yehuda Sadeh)
* rgw: improve swift temp URL support (Yehuda Sadeh)
* rgw: make multi-object delete idempotent (Yehuda Sadeh)
* rgw: optionally defer to bucket ACLs instead of object ACLs (Liam Monahan)
* rgw: prototype mongoose frontend (Yehuda Sadeh)
* rgw: several doc fixes (Alexandre Marangone)
* rgw: support for password (instead of admin token) for keystone authentication (Christophe Courtaut)
* rgw: switch from mongoose to civetweb (Yehuda Sadeh)
* rgw: user quotas (Yehuda Sadeh)
* specfile: fix RPM build on RHEL6 (Ken Dreyer, Derek Yarnell)
* specfile: ship libdir/ceph (Key Dreyer)
* sysvinit, upstart: prevent both init systems from starting the same daemons (Josh Durgin)
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)
v0.77
-----