The "mds blacklist interval" setting has no effect on the time that
the "ceph osd blacklist" command will use by default. Clarify this in
the docs.
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
* refs/remotes/upstream/pull/16036/head:
mds: improve cap min/max ratio descriptions
mds: fix whitespace
mds: cap client recall to min caps per client
mds: fix conf types
mds: fix whitespace
doc/cephfs: add client min cache and max cache ratio describe
mds: adding tunable features for caps_per_client
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Zheng Yan <zyan@redhat.com>
* refs/remotes/upstream/pull/17657/head:
mds: optimize MDCache::rejoin_scour_survivor_replicas()
mds: fix MDSCacheObject::clear_replica_map
mds: support limiting cache by memory
common: refactor of lru
mds: resolve unsigned coercion compiler warning
common: use safer uint64_t for list size
common: add bytes2str pretty print function
mds: check if waiting is allocated before use
mds: go back to compact_map for replicas
mds: use mempool for cache objects
mds: cleanup replica_map access
common: add alloc_ptr smart pointer
common: add warning on base class use of mempool
common: use atomic uin64_t for counter
Reviewed-by: Zheng Yan <zyan@redhat.com>
* refs/remotes/upstream/pull/17608/head:
doc/cephfs/posix: put posix notes in perspective
Reviewed-by: John Spray <john.spray@redhat.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
This introduces two config parameters:
mds_cache_memory_limit: Sets the soft maximum of the cache to the given
byte count. (Like mds_cache_size, this doesn't actually limit the maximum
size of the cache. It just dictates the steady-state size.)
mds_cache_reservation: This replaces mds_health_cache_threshold everywhere
except the Beacon heartbeat sent to the mons. The idea here is to specify a
reservation of memory (5% by default) for operations and the MDS tries to
always maintain that reservation. So, the MDS will recall caps from clients
when it begins dipping into its reservation of memory.
mds_cache_size still limits the cache by Inode count but is now by-default 0
(i.e. unlimited). The new preferred way of specifying cache limits is by memory
size. The default is 1GB.
Fixes: http://tracker.ceph.com/issues/20594
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1464976
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
Current cephfs can support seekdir efficiently. The diverge was
fixed by https://github.com/ceph/ceph/pull/14317
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Add a short description and command example to set the allow_multimds
flag and add a <fs_name> place holder to all 'ceph fs set' commands.
Signed-off-by: Jan Fajerski <jfajerski@suse.com>
Add a description of max_file_size to the CephFS admin docs.
Thanks to John Spray <jspray@redhat.com> on ceph-users for this
information.
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
The "session ls" and "session evict" are now
"client ls" and "client evict" (the old ones
are still there for backwards compatibility).
The automatic client eviction now emits
cluster logs that call the client by its
friendly name (usually the hostname).
Signed-off-by: John Spray <john.spray@redhat.com>
This makes the code a bit awkward because we now have
4x paths through this function (blocking, noblocking, blacklisting,
nonblacklisting).
Signed-off-by: John Spray <john.spray@redhat.com>
This was occasionally useful for establishing a journal-less
performance baseline, but it has two big problems:
* We don't test it, so it's probably broken a lot of the time
* It sounds a lot to a naive user like an option for controlling
logging.
IMO, anyone who wants this behaviour is in sufficiently advanced
territory that then can hack it in and recompile, we don't need
to leave dangerous things like this in our releases.
Fixes: http://tracker.ceph.com/issues/18816
Signed-off-by: John Spray <john.spray@redhat.com>
This allows the client/admin to pin a directory tree to a particular rank,
preventing its export by the dynamic balancer.
Fixes: http://tracker.ceph.com/issues/17834
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
This had been broken for some time, as since the new
JournalStream stuff, zero padding was no longer a valid
encoding.
Fixes: http://tracker.ceph.com/issues/19691
Signed-off-by: John Spray <john.spray@redhat.com>
Client.cc marks session as stale instead of reconecting after received
reset from MDS. On MDS side session is closed so MDS is ignoring cap
renew. This adds option to reconnect stale client sessions instead of
just marking sessions stale.
Fixes: http://tracker.ceph.com/issues/18757
Signed-off-by: Henrik Korkuc <henrik@kirneh.eu>
Add a procedure that permits reconstructing metadata in a potentially
damaged cephfs metadata pool and writing the results into a
freshly-initialized pool that refers to the same data pool. Add option
flags to override checks that would ordinarily prevent this and add
options to the recovery tools to write output to a separate pool instead of
the one selected for recovery. See docs/cephfs/disaster-recovery.rst for
details.
Fixes: http://tracker.ceph.com/issues/15068
Fixes: http://tracker.ceph.com/issues/15069
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
