osd: Improve logging output including pg_shard_t as osd#(shard)

Signed-off-by: David Zafman <david.zafman@inktank.com>
osd: Add logging of missed l_osd_agent_skip cases

Signed-off-by: David Zafman <david.zafman@inktank.com>
osd: Error from start_flush() not checked in agent_maybe_flush()

This caused a very minor memory leak since ctx was allocated
Include logging of l_osd_agent_skip

Signed-off-by: David Zafman <david.zafman@inktank.com>
osd: start_flush() should check for missing clones and return if requested

Fixes: #7659

Signed-off-by: David Zafman <david.zafman@inktank.com>
PG: always clear agent_state in clear_primary_state

We aren't actually active between activate() and all_activated_committed().
We'd have to suspend agent_work during that period which seems like too much
complexity for too little work saved.

Fixes: #7904
Signed-off-by: Samuel Just <sam.just@inktank.com>
ReplicatedPG: hit_set_setup, agent_setup, skip if !active

We call these in on_activate and on_pool_change.  In the former, we are
necessarily active.  In the latter, we only want to do anything if we are
active (otherwise, it will be taken care of when we eventually do become
active).

Fixes: #7904
Signed-off-by: Samuel Just <sam.just@inktank.com>
ReplicatedPG: improve get_object_context debugging

Signed-off-by: Samuel Just <sam.just@inktank.com>
osd/ReplicatedPG: handle snapdir properly during scrub

Handle snapdir similarly to how head is treated when updating the
next_clone info.  Also, add a warning when we have a snapdir object and
head_exists == true (the converse of the existing check).

Fixes: #7937
Signed-off-by: Sage Weil <sage@inktank.com>
osd/ReplicatedPG: continue scrub logic when snapset.head_exists doesn't match

The 'continue' will cause more damange/noise than continuing because the
next_clone value won't be updated properly.

Signed-off-by: Sage Weil <sage@inktank.com>
PG: set role for replicated even if role != shard

Fixes: #7939
Signed-off-by: Samuel Just <sam.just@inktank.com>
debian: move ceph-rest-api from ceph-common to ceph

ceph-rest-api is a 'server' thing that runs persistently; 'ceph' is a
better match.

Signed-off-by: Sage Weil <sage@inktank.com>
osd/ReplicatedPG: mark_unrollbackable when _rollback_to head

We fell into the case in _rollback_to where we just set ctx->modify = true
and don't explicitly mark the ctx and unrollbackable.  Later, we screw up
in proc_replica_log as a result because we think we can rollback this
update to the head when in reality we cannot.

Fixes: #7907
Signed-off-by: Sage Weil <sage@inktank.com>
debian: make ceph-common own etc/ceph, var/log/ceph

Clients can make use of these directories, and ceph-common is required by
ceph, so nothing should break here.

Change the purge postrm script to be for ceph-common (it does nothing else).

Signed-off-by: Sage Weil <sage@inktank.com>
mds: fix check for merging/spliting dirfrag

check actual number of items instead of number of cached items

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
init.d: correcting rbdmap init order:

 * Require "$remote_fs" since it guarantees /usr availability
   (rbd executable is in /usr/bin/rbd)
 * Speed-up init.d rbd mapping on machines acting as MON/OSD
   by starting rbdmap after /init.d/ceph (when possible) and
   shutting down rbd before ceph.
 * Map rbd devices before starting X (helpful when /home is mounted from rbd).
Merge pull request #1587 from onlyjob/debian

init.d: correcting rbdmap LSB header / init order:

Reviewed-by: Sage Weil <sage@inktank.com>
Merge pull request #1586 from ceph/wip-dirfrag

mds: fix check for merging/spliting dirfrag

Reviewed-by: Sage Weil <sage@inktank.com>
debian: move rbdmap config and sysvinit/upstart scripts into ceph-common

Fixes: #7171
Signed-off-by: Sage Weil <sage@inktank.com>
Merge pull request #1579 from ceph/wip-7907

osd/ReplicatedPG: mark_unrollbackable when _rollback_to head

Reviewed-by: Samuel Just <sam.just@inktank.com>
Merge pull request #1590 from ceph/wip-7939

PG: set role for replicated even if role != shard

Reviewed-by: Sage Weil <sage@inktank.com>