doc: Added a script to build docs on CentOS / RHEL.

Fixes: #7722

Signed-off-by: John Wilkins <john.wilkins@inktank.com>
doc: Extended discussion for building docs on CentOS / RHEL.

Fixes: #7722

Signed-off-by: John Wilkins <john.wilkins@inktank.com>
os/FileJournal: stop aio completion thread *after* writer thread

The writer thread may submit a new aio to update the header in its
final moments before shutting down.  Do not stop the aio thread until after
that has happened or else we may not wait for those aio completions.

Signed-off-by: Sage Weil <sage@redhat.com>
Revert "os/FileJournal: For journal-aio-mode, don't use aio when closing journal."

This reverts commit e870fd09ce846e5642db268c33bbe8e2e17ffef2.

The aio completion thread will now wait for the final header update aio to
finish; this workaround is no longer necessary.

Signed-off-by: Sage Weil <sage@redhat.com>
systemd support in ceph-disk activate

previous code just fails for systemd with an error

Signed-off-by: Owen Synge <osynge@suse.com>
doc: Add file system osd config settings
Add documentation for osd mkfs and osd mount options.

Signed-off-by: Kevin Dalley <kevin@kelphead.org>
rgw: Export user stats in get-user-info Adminops API

Fixes: #9359

Signed-off-by: Ray Lv <raylv@yahoo-inc.com>
doc: Change listed RBD cache defaults to actual defaults

Signed-off-by: Adam Crume <adamcrume@gmail.com>
osdc: Fix ObjectCounter::_readx perf counters

Signed-off-by: Adam Crume <adamcrume@gmail.com>
librbd: Add read-ahead

Signed-off-by: Adam Crume <adamcrume@gmail.com>
client: Replace client readahead logic with Readahead

Signed-off-by: Adam Crume <adamcrume@gmail.com>
rgw: PutObjMetadata, clear bufferlist before appending into it

Fixes: #9576
Backport: firefly, dumpling

We need to completely rewrite the bufferlist, not append into it.

Signed-off-by: Yehuda Sadeh <yehuda@redhat.com>
rgw: rados->set_attrs() updates bucket index

Fixes: #5595
Backport: dumpling, firefly
We need to update the bucket index when updating object attrs, otherwise
we're missing meta changes that need to be registered. It also
solves issue of bucket index not knowing about object acl changes,
although this one still requires some more work.

Signed-off-by: Yehuda Sadeh <yehuda@redhat.com>
Clock: Using clock_gettime instead of gettimeofday in linux os.

The precision of utime_t is nsec. In func ceph_clock_now, it use
gettimeofday to set utime_t. But the precision of gettimeofday is
microseconds. In linux, the precision of clock_gettime is nsec.
So using clock_gettime install gettimeofday in order to get higer
precision.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
os/FileStore: using FIEMAP_FLAGS_SYNC instead of fsync() before call
fiemap.

When call fiemap, it need sync the file. Now it used fsync() to achieve
this. But for fiemap, there is a flag FIEMAP_FLAGS_SYNC which do the
same thing like fsync().

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
rgw: swift GET / HEAD object returns X-Timestamp field

Fixes: #8911
Backport: giant, firefly, dumpling
Swift clients expect X-Timestamp header, dump it.

Signed-off-by: Yehuda Sadeh <yehuda@redhat.com>
ceph-disk: set guid if reusing a journal partition

When reusing a journal partition (e.g. /dev/sda2) we should set a
new partition guid and link it correctly with the OSD. This way
the journal is symlinked by its persistent name and ceph-disk list
works correctly.

Signed-off-by: Dan van der Ster <daniel.vanderster@cern.ch>
os/FileStore: do not loop in sync_entry on shutdown

Normally we repeat a sync if the journal is full and asks for it or if we
have pending sync waiters.  This isn't for correctness: it's to move things
along quickly.

If we are shutting down *and* the journal is full, however, we currently
can get stuck in a loop where we repeatedly sync.  However, the journal
never gets unfull because we aren't expiring anything.

We tried to fix this in 682b9daacb1960eb60b5f0e9b40d4a3a3e9afd5b but that
didn't work because we don't tell the journal to stop before we shut down
the filestore sync thread.

I'm pretty sure there is another issue in the journal code as

 full_state == FULL_FULL
 submit_manager.op_seq = 14761
 apply_manager.committing_seq = 14761
 apply_manager.committed_seq = 14761

which seems odd.  But I have no longs.  Meanwhile, this fixes the hang.

Fixes: #9545
Signed-off-by: Sage Weil <sage@redhat.com>
Fix read performance regression in ObjectCacher

The regression was introduced in commit
4fc9fffc494abedac0a9b1ce44706343f18466f1.  The problem is that the cache
thinks it's full (when it's not), so it defers the read.  This change
frees up cache space if necessary and only defers the read if enough
space cannot be freed.

Fixes: 9513
Signed-off-by: Adam Crume <adamcrume@gmail.com>
Add AsyncMessenger support

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>