| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Vikas Gorur <vikas@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 326 ([2.0.8rc9] Spurious self-heal)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=326
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The janitor thread deletes all files and directories in
the "/" GF_REPLICATE_TRASH_DIR directory. This directory
is used by replicate self-heal to dump files and
directories it deletes.
This is needed because letting replicate walk the directory
tree and delete a directory and all its children is too racy.
Instead, replicate self-heal only does an atomic rename(),
and the janitor thread takes care of actually deleting them.
Signed-off-by: Vikas Gorur <vikas@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 227 (replicate selfheal does not remove directory with contents in it)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=227
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Cleaned up the self-heal interface to callers.
Signed-off-by: Vikas Gorur <vikas@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 170 (Auto-heal fails on files that are open()-ed/mmap()-ed)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=170
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The problem: If some files on the first subvolume disappeared
without leaving a trace in the entry changelog (this can happen,
for example, when an fsck has deleted files or when a hard drive
is replaced), those files would never be self-healed even though
they would be present on the second subvolume. This is because
readdir is sent only to the first subvolume, and since the files
don't appear in the directory listing, no lookup would ever be
sent on them.
This patch fixes this problem by doing a readdir on all the subvolumes
during the first opendir on a directory inode. If a discrepancy in the
contents is detected, entry self-heal in a special "force merge" mode
is triggered on that directory.
Signed-off-by: Vikas Gorur <vikas@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 249 (Self heal of a file that does not exist on the first subvolume)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=249
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If entry self-heal determines that a file/directory should
be deleted from a subvolume, move that entry to a directory
called "/.trash" on that subvolume. This is for two reasons:
1) It limits the damage that can be done by a "wrong" entry
self-heal.
2) It solves the problem of a to-be-deleted directory not
being empty.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 227 (replicate selfheal does not remove directory with contents in it)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=227
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During entry self-heal, make sure not only that a symlink
exists on all subvolumes, but also that their targets match.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 193 (symlink contents not self-healed by replicate)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=193
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This patch introduces a new option "background-self-heal-count", with a
default value of 16.
This means that upto {background-self-heal-count} number of files/directories
will be healed in the background at any given time. If such number of self-heals
are already in progress, further self-heals take place in the foreground.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 320 (Improve self-heal performance)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320
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If the initial lookup shows that 'pending' is positive, then
self-heal will hold a lock and do a lookup again. This lookup
might show that 'pending' is zero everywhere. However, entry
self-heal used to consider this as a case of 'no sources' and
try to merge the directories. This patch checks for that case
and does not do the merge.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 326 ([2.0.8rc9] Spurious self-heal)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=326
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impunge_parent_setattr.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 137 (Parent directory mtime not reset after a create in self-heal)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=137
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frame.
There was a race condition in assuming that afr_sh_entry_impunge_parent_setattr_cbk will
always return before impunge_xattrop_cbk and impunge_setattr_cbk.
This patch fixes two additional problems:
1) Building the parent_loc from impunge_local->loc after STACK_WIND to
impunge_xattrop_cbk has happened. In a simple afr-posix configuration
the stack will have been destroyed by the time building of parent_loc is
attempted.
2) parent_loc built in impunge_newfile_cbk was not being loc_wipe'd.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 137 (Parent directory mtime not reset after a create in self-heal)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=137
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While creating/deleting an entry as part of entry self-heal,
set the parent directory's mtime to match that on the source
subvolume.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 137 (Parent directory mtime not reset after a create in self-heal)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=137
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afr selfheal now remembers all the nodes on which locks were successfully
held and sends unlocks only to those nodes
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 112 (parallel deletion of files mounted by different clients on the same back-end hangs and/or does not completely delete)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=112
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when files on all backend nodes are missing, the logic in afr_sh_entry_erase_pending
is broken and results in missing lookup frame. this causes processes to enter into
uninterruptible sleep state.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 311 (missing frame (lookup) when entry-selfheal finds missing files in all backend nodes)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=311
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 145 (NFSv3 related additions to 2.1 task list)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=145
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 146 (Add setattr FOP)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=146
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 130 (build warnings)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=130
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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xattrs on source subvolume for that dir/file
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impunge loop was 'continued' on a different subvolume in certain cases, resulting in healing of partial files
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subvolumes while keeping existing data.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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If file sizes differ, then compulsorily do self-heal. If no 'wise'
sources are found, then pick a 'fool' with the biggest file size.
If even 'fools' aren't found, pick the 'innocent' source with the
biggest file size.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Decrement xattr during self-heal based on the original dict instead
of pending_matrix, as the pending_matrix might have been
altered later.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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updated copyright header to include 2009.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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