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* cluster/afr: Do self-heal on reopened fds.Vikas Gorur2009-11-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | This patch brings in partial support for self-heal of open fds. The precondition is that the fd should have been opened successfully during the initial open() (or create()), and we assume that protocol/client has successfully reopened the fd when the subvolume comes back up. It works by doing an "up/down flush" (a dummy flush transaction to do post-op wherever necessary) and then triggering data self-heal on the file in the post-post-op hook of the dummy flush transaction. This ensures that any writes that come in during self-heal will wait until self-heal completes. The up/down flush is also done when a subvolume goes down, so that post-op is done on all subvolumes where pre-op was done. 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
* cluster/afr: Fix inode context bitmasks.Vikas Gorur2009-11-241-2/+2
| | | | | | | | | | | Set opendir_done and split_brain flags correctly in the inode context. 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
* cluster/afr: Fix double-free in opendir self-heal callback.Vikas Gorur2009-11-241-1/+4
| | | | | | | | | | | local->cont.opendir.checksum was being free'd both in the self-heal completion function and self-heal unwind. 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
* cluster/afr: Handle op_ret properly in opendir_cbkVikas Gorur2009-11-191-2/+3
| | | | | | | | | | | Change the success condition to op_ret >= 0 instead of op_ret == 0. 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
* cluster/afr: Ensure directory contents are in sync during opendir.Vikas Gorur2009-11-131-2/+190
| | | | | | | | | | | | | | | | | | | | | | 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
* cluster/afr: Move deleted files to /.trash in entry self-heal.Vikas Gorur2009-10-291-2/+16
| | | | | | | | | | | | | | | | | 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
* Changed occurrences of Z Research to Gluster.Vijay Bellur2009-10-071-1/+1
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* cluster/afr: Change STACK_UNWIND to STACK_UNWIND_STRICT.Vikas Gorur2009-10-071-7/+9
| | | | | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 269 (Add a specialized STACK_UNWIND macro for each FOP) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=269
* afr: Support readdirp fopShehjar Tikoo2009-10-061-10/+72
| | | | | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 292 (Separate readdirp functionality from readdir fop) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=292
* Do not fail over readdir in replicate.Vikas Gorur2009-06-111-27/+4
| | | | | | | | | If readdir fails on a subvolume, do not fail-over to the next subvolume, since the order of entries and offsets won't be same on all subvolumes. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Do itransform on every entry in readdir_cbk.Vikas Gorur2009-06-111-4/+9
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Do itransform in AFR readdir.Vikas Gorur2009-05-261-3/+10
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Cleaned up log messages in replicate.Vikas Gorur2009-04-241-4/+4
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* updated copyright header to extend copyright upto 2009Basavanagowda Kanur2009-02-261-1/+1
| | | | | | updated copyright header to include 2009. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Added all filesVikas Gorur2009-02-181-0/+345
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