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* replicate: optimistic changelogAnand Avati2010-11-093-13/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The standard way of maintaining changelog in replicate has been to write out pending flags and to unset the pending flag post the actual operation. This new optimization kicks in only when all subvolumes are up. The optimization is that, during pre-op, no changelog is written for METADATA and ENTRY/RENAME operations. If during the operation nothing failed, no changelog is updated in post-op either. If however, something does fail during an operation, then, pending flags get written during post op pointing only towards the failed nodes. DATA transactions continue to work the way they are. If one subvolume is down, pending flags are written in pre-op changelog itself as before. The impact of this optimization is only in the case when both servers die or the client dies while the 'FOP' stage of the transaction is in progress. By nature of METADATA and ENTRY operations, detecting a mismatch later is not dependent on the presence of changelog. Changelog only determines the direction in which self-heal happens for these types of transactions. For the direction too this optimization does not have a major impact because in the cases of failure (both servers dieing or client dieing) the final state (direction of self-heal) would be arbitrary anyways as the syscall wouldn't have completed. Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2068 (performance enhancements) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2068
* replicate: attempt re-open of files before performing openfd selfhealAnand Avati2010-10-271-7/+176
| | | | | | | | | | | | in cases where subvolume state gets swapped between open and write opening file on the remaining subvolumes is necessary before attempting a self-heal. previously files were opened after self heal. Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 918 (AFR write fails when subvolumes' state is swapped) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=918
* replicate: fix hang/missing frame during lockingAnand Avati2010-10-271-1/+15
| | | | | | | | | | | | nonblocking style locking would result in a missing frame when all subvolumes are down or when no subvolume on which fd was opened is up. Check for this condition and unlock gracefully Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 918 (AFR write fails when subvolumes' state is swapped) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=918
* Change assert to GF_ASSERTVijay Bellur2010-10-123-8/+8
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Copyright changesVijay Bellur2010-10-1126-26/+26
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* mgmt/glusterd: Fix replace brick to pass src-brick and dst-brick port nos ↵v3.1.0qa42Pavan Sondur2010-10-081-4/+13
| | | | | | | | | | | | properly. Fix also contains patch from shishir ng for maintaining replace-brick states in glusterd. Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* lock recovery: temporarily disable lock healingAnand Avati2010-10-071-4/+5
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* Reply back to CLI on error, by validating each xlator's optsKaushik BV2010-10-051-0/+239
| | | | | | | | Signed-off-by: Kaushik BV <kaushikbv@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1159 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1159
* mgmt/Glusterd : Reply to CLI error: graph constructionKaushik BV2010-10-051-0/+1
| | | | | | | | Signed-off-by: Kaushik BV <kaushikbv@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1159 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1159
* replicate: use the new rmdir prototype for cleaner entry self-healingAnand Avati2010-10-051-204/+21
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1761 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1761
* features/locks: cluster/afr: Misc fixes for lock recovery.Pavan Sondur2010-10-051-2/+5
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* Change GNU GPL to GNU AGPLPranith K2010-10-0426-78/+78
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1388 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388
* cluster/pump: mgmt/glusterd: Misc fixes for replace-brickPavan Sondur2010-10-042-3/+77
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* rmdir: introduce extra flags parameter in FOP prototypeAnand V. Avati2010-10-024-11/+14
| | | | | | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Set the lock owner properly for lock self heal.Pavan Sondur2010-10-021-0/+2
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* cluster/pump: Do not do lookup if it is "." and ".." in pump.Pavan Sondur2010-10-021-74/+44
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* changes for replace-brick status messageRaghavendra Bhat2010-10-011-4/+29
| | | | | | | | Signed-off-by: Raghavendra Bhat <raghavendrabhat@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1767 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1767
* Changes to replace flock with gf_flock across GlusterFS.Pavan Sondur2010-10-013-21/+21
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* cluster/pump: Initiailize pthread mutex and saved fds list.Pavan Sondur2010-10-011-0/+3
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* cluster/afr: Recover locks on child_up from source to sink.Pavan Sondur2010-10-013-0/+408
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* protocol/client: cluster/afr: Support lock recovery and self heal.Pavan Sondur2010-09-305-3/+150
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* replicate: remove checks which prevented self-heal when open fds were presentAnand Avati2010-09-292-16/+1
| | | | | | | | | | | | | this check is not needed anymore since the introduction of changelog piggybacking as the optimization technique instead of first-write-to-flush technique some of the self-healing issues with NFS mounts should be resolved Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* replicate: keep read_child in inode ctx as up-to-date as possibleAnand Avati2010-09-293-4/+50
| | | | | | | | | | | | | In every transaction check if the currently set read child in the inode context failed in the fop and set it to another subvol on which the latest fop has passed. This will prevent read fops landing on subvols which have witnessed a failure. Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1172 (ls -lh on NFS mount of 2-mirror replicate gives incorrect file size) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1172
* pump: skip "." and ".." entries while traversing dir treeAnand Avati2010-09-291-0/+4
| | | | | | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* glusterd: make sure init is not called when there is no topology changeKaushik BV2010-09-291-1/+1
| | | | | | | | Signed-off-by: Kaushik BV <kaushikbv@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1159 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1159
* replicate: clear pre_op_done/piggyback values after open fd self-healAnand Avati2010-09-291-2/+11
| | | | | | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* replicate: use new style (un)locking in self heal of missing entriesAnand Avati2010-09-291-62/+5
| | | | | | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 960 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=960
* replicate: replace first-write-to-flush optimizationAnand V. Avati2010-09-296-594/+422
| | | | | | | | | | | | use a changelog piggybacking optimization instead of first-write-to-flush optimization and do other cleanups (removal of post-post-op hook etc.) Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* whitespace cleanupAnand V. Avati2010-09-294-1928/+1937
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* Check for possible fd/ctx NULL in afrshishir gowda2010-09-243-5/+22
| | | | | | | | Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1636 (Replicate crashed in afr_nonblocking_inodelk on deref of NULL fd_ctx) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1636
* mgmt/glusterd: Misc fixes to pump / cli / glusterd wrt replace brick.v3.1.0qa30v3.1.0betaPavan Sondur2010-09-232-1/+3
| | | | | | | | | | Patches from Vijay and Shishir have been pulled in into this one big patch. Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* cluster/afr: print correct offset in debug message during diff self-heal.Raghavendra G2010-09-201-2/+2
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 960 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=960
* Glusterd: gluster volume set <volume> <option> <value>Kaushik BV2010-09-181-0/+225
| | | | | | | | Signed-off-by: Kaushik BV <kaushikbv@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1159 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1159
* change stat structure to iattAnush Shetty2010-09-181-1/+1
| | | | | | | | Signed-off-by: Anush Shetty <anush@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1642 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1642
* cluster/afr: allocate memory big enough to hold iatt structures.Raghavendra G2010-09-182-3/+3
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 927 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=927
* cluster/replicate: stack_wind into read_child only if it is up.Raghavendra G2010-09-181-6/+6
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1637 (replicate should wind reads into read-child only if it is up) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1637
* cluster/pump: introduce another flag to enable pump functionalityAmar Tumballi2010-09-162-45/+622
| | | | | | | | | | | | * by default pump will act as a pass through xlator, only when replace-brick start command is issued, it will set the flag, and then pump features (ie, afr) will come in to picture. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1590 (Stack overflow during self-heal) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1590
* remove 'gen' from iatt/protocol structuresAmar Tumballi2010-09-142-15/+0
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* afr: reduce the size of readdir request during entry-self-healAmar Tumballi2010-09-131-1/+1
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1585 (Errors during self-heal) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1585
* cluster/afr: Clean up dead assignments.Sachidananda2010-09-131-7/+0
| | | | | | | | Signed-off-by: Sachidananda Urs <sac@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1083 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1083
* mgmt/glusterd: Various replace brick changes.v3.1.0qa18Pavan Sondur2010-09-081-0/+11
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* cluster/afr: Various self heal fixes wrt gfid.Pavan Sondur2010-09-075-13/+145
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* cluster/afr: Fix hang in create when one subvol is down.Pavan Sondur2010-09-062-21/+37
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1544 (Create fails when 1 server is down) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1544
* gfid: changes in symlink() prototype to have params dictionary with uuid in itAnand Avati2010-09-046-6/+15
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: changes in mkdir() prototype to have params dictionary with uuid in itAnand Avati2010-09-046-6/+16
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: changes in mknod() prototype to have params dictionary with uuid in itAnand Avati2010-09-046-7/+16
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: change in create() prototype to have params dictionary with uuid in itAnand Avati2010-09-044-3/+11
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: changes in inode managementAnand Avati2010-09-041-2/+0
| | | | | | | | | | | | | - incorporate usage of uuid (gfid) as the key for finding inodes - deprecate inode number/generation number based inode_get - undo code specific to generation numbers (attic list etc.) Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* cluster/afr: Remove dead variables.Sachidananda2010-09-031-31/+6
| | | | | | | | Signed-off-by: Sachidananda Urs <sac@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1081 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1081
* cluster/replicate: fix warnings during build.Raghavendra G2010-09-031-2/+2
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 960 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=960
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