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* heal: glfs-heal implementationPranith Kumar K2014-10-154-10/+26
| | | | | | | | | | | Thanks a lot to Niels for helping me to get build stuff right. Change-Id: I634f24d90cd856ceab3cc0c6e9a91003f443403e BUG: 1147462 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6529 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Add afr-v1 xattr compatibilityPranith Kumar K2014-10-016-83/+330
| | | | | | | | | | | | | All the special cases v1 handles and also self-accusing pending changelog from v1 pre-op also is handled in this patch. Change-Id: Ie10f71633fb20276f01ecafbd728f20483e7029c BUG: 1128721 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8536 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* Fix invalid seekdir() usageEmmanuel Dreyfus2014-09-301-3/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to POSIX, seekdir() should only be given offset obtained from telldir() on the same DIR * http://pubs.opengroup.org/onlinepubs/9699919799/functions/seekdir.html Code from afr-self-heald.c and index.c is operating outside of the specification, by doing using seekdir() with offset from a previously open/close/re-open directory. This seems to work on Linux (although with no guarantee it will always in the future). On NetBSD the seekdir() with a in invalid offset is a nilpotent operation, and causes an infinite loop, since index_fill_readdir() always restart from the beginning of the directory. The situation is fixed by using a non anonymous fd in afr-self-heald.c: we explicitely open the directory so that it remains open on the brick side during the timeframe where we want to reuse offsets in seekdir(). This requires adding an opendir fop in index xlator. If the brick was not updated, the opendir will fail and we fallback to the standard violating approach for backward compatibility on Linux. On other systems we fail since it never worked. While there, add tests to check seekdir() success in index and posix xlators, so that incorrect usage from calling code produce an explicit error instead of an infinite loop. We can only do it on non Linux systems, for the sake of backward compatibility when the brick was updated but not the client. BUG: 1129939 Change-Id: I88ca90acfcfee280988124bd6addc1a1893ca7ab Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8760 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Launch self-heal only when all the brick status is knownPranith Kumar K2014-09-291-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: File goes into split-brain because of wrong erasing of xattrs. RCA: The issue happens because index self-heal is triggered even before all the bricks are up. So what ends up happening while erasing the xattrs is, xattrs are erased only on the sink brick for the brick that it thinks is up leading to split-brain Example: lets say the xattrs before heal started are: brick 2: trusted.afr.vol1-client-2=0x000000020000000000000000 trusted.afr.vol1-client-3=0x000000020000000000000000 brick 3: trusted.afr.vol1-client-2=0x000010040000000000000000 trusted.afr.vol1-client-3=0x000000000000000000000000 if only brick-2 came up at the time of triggering the self-heal only 'trusted.afr.vol1-client-2' is erased leading to the following xattrs: brick 2: trusted.afr.vol1-client-2=0x000000000000000000000000 trusted.afr.vol1-client-3=0x000000020000000000000000 brick 3: trusted.afr.vol1-client-2=0x000010040000000000000000 trusted.afr.vol1-client-3=0x000000000000000000000000 So the file goes into split-brain. Change-Id: I1185713c688e0f41fd32bf2a5953c505d17a3173 BUG: 1142601 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8755 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr : Fix incorrect looping of index healerAnuradha2014-09-291-4/+9
| | | | | | | | | | | | | | | | Sending appropriate return value from afr_selfheal() fixes the issue. Credits : Krutika Dhananjay and Pranith Kumar. Change-Id: I01dbd49476f6bfbd02028fdde1f60cc0324a1e39 BUG: 1146812 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/8868 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Fix inode leakKrutika Dhananjay2014-09-281-0/+2
| | | | | | | | | | Change-Id: I723b65d6fcae5bd39c0daece3b2f48baf0a72166 BUG: 1145471 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8875 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: More dict_t leak fixesKrutika Dhananjay2014-09-262-33/+68
| | | | | | | | | | Change-Id: I6618b7b2df0f88a3e6252f9136135cf402147a37 BUG: 1134221 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8852 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Fix locking issues in entry self-healKrutika Dhananjay2014-09-241-92/+123
| | | | | | | | | | | | | Original reporter of the bug & designer of the solution: Pranith Kumar K <pkarampu@redhat.com> Change-Id: I9ed89aa92e4cd0f8049f5f6c7a3701e52989ae5e BUG: 1128721 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8837 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Fix spurious metadata self-healsPranith Kumar K2014-09-247-29/+86
| | | | | | | | | | | | | - Added logging for metadata and data self-heals which helped in debugging this issue. - Added checks to skip self-heals when no sinks are available to heal Change-Id: I0d50dceb84cd9ad4fe00e0b749ddf7d4ff42348a BUG: 1128721 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8709 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Fixed mem leaks in self-heal code path.Anuradha2014-09-232-1/+17
| | | | | | | | | | | | | | | | AFR_STACK_RESET previously didn't cleanup afr_local_t, leading to memory leaks. With this patch, cleanup is done. All credit goes to Pranith Kumar Karampuri. Change-Id: I3c727ff4bb323dccb81da4b3168ac69bb340d17d BUG: 1145471 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/8821 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Do not reset pending xattrs on gfid or type mismatch in entry-shKrutika Dhananjay2014-09-231-18/+79
| | | | | | | | | | Change-Id: Ie27219a376382e2455a0fcc094f8b7eb243738ae BUG: 1140613 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8816 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Don't start heal when lookup succeeds on < 2 childrenPranith Kumar K2014-09-236-8/+29
| | | | | | | | | | | | | | | | | | | Problem: When self-heal code doesn't see at least 2 successes on looking up children, then self-heal can't be done. What is happening now is if all the lookups fail then the pending changelog is all zeros in xattrs so all the children are becoming sources and leading to crashes when the code paths further assume that some data structures are populated properly Fix: Don't proceed with self-heals when < 2 children succeed lookups. BUG: 1128721 Change-Id: Iffdf0feebb6f98812d9d01cdd0cf97f3e19ba76f Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8698 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Set all the xattrs needed by index xlatorAnuradha2014-09-162-41/+30
| | | | | | | | | | | | | | | | | | | | | | Index xlator removes the index file from indices xattrop directory in case the value for keys sent are zero. If all the required keys are not set by afr then index file might be removed in an invalid way. With this change all the keys required by index xlator are set by afr such that invalid removal of files does not occur. Change-Id: Idbed0764a95157fd5cab8d6685057a43788fc7df BUG: 1139230 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/8652 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Handle EAGAIN properly in inodelkPranith Kumar K2014-09-152-14/+130
| | | | | | | | | | | | | | | | | | Problem: When one of the brick is taken down and brough back up in a replica pair, locks on that brick will be allowed. Afr returns inodelk success even when one of the bricks already has the lock taken. Fix: If any brick returns EAGAIN return failure to parent xlator. Change-Id: I5b842d0fc094359cc4231494053d2bfeb606bbbe BUG: 1141539 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8710 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: perform list-xattr during lookupRavishankar N2014-09-054-11/+222
| | | | | | | | | | | | | Detect and heal mismatching user extended attributes during lookup. 'Forward' port of http://review.gluster.org/#/c/7444/ Change-Id: Id03c9746f083ffd3014711d0b3a2e5a71a45eed4 BUG: 1134691 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/8558 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr : Mark pending changelog xattrs for new creationsAnuradha2014-09-037-90/+148
| | | | | | | | | | | | | Based on type of file, set appropriate pending changelogs for new entries. Change-Id: Ifd124bf9bc54b996ce83ab9f39d03b3ccca7eb3c BUG: 1130892 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/8555 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Minor fixes to #8574Krutika Dhananjay2014-09-031-5/+3
| | | | | | | | | | | | | | * Fixed a bug in afr_selfheal_name_type_mismatch_check() * Fixed indentation * Removed redundant 'continue' statements Change-Id: Ie58b5dec9085ce9fe46ae9f244ebae1b1cef7ac5 BUG: 1132469 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8586 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Propagate EIO on inode's type mismatchKrutika Dhananjay2014-09-027-120/+333
| | | | | | | | | | | | | Original author of the test script: Pranith Kumar K <pkarampu@redhat.com> Change-Id: If515ecefd3c17f85f175b6a8cb4b78ce8c916de2 BUG: 1132469 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8574 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Fix dict_t leaksKrutika Dhananjay2014-08-288-35/+64
| | | | | | | | | | | | | dict_t objects that are ref'd in alloca'd "replies" in afr_replies_copy() are not unref'd after "replies" go out of scope. Change-Id: Id5a6ca3c17a8de72b94b3e0f92165609da5a36ea BUG: 1134221 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8553 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Fix all locked_on bricks are sinks check in self-healsPranith Kumar K2014-08-265-82/+66
| | | | | | | | | | | | | | | | | | | | Problem: Counts may give wrong results when the number of bricks is > 2. If the locks are acquired on one source and sink, but the source accuses even the down sink then there will be 2 sinks and lock is acquired on 2 bricks so even when there is a clear source and sink **_finalize_source functions think the file/directory is in split-brain. Fix: Check that all the bricks which are locked are sinks. Change-Id: Ia43790e8e1bfb5e72a3d0b56bcad94abd0dc58ab BUG: 1128721 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8456 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Perform metadata sync inside metadata locksPranith Kumar K2014-08-221-19/+15
| | | | | | | | | Change-Id: Ie55b3d37cacbdad74a3f63c3b0f025b0ffd0104a BUG: 1132461 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8514 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
* cluster/afr: Perform gfid heal inside locks.Pranith Kumar K2014-08-226-27/+69
| | | | | | | | | | | | | | | | | Problem: Allowing lookup with 'gfid-req' will lead to assigning gfid at posix layer. When two mounts perform lookup in parallel that can lead to both bricks getting different gfids leading to gfid-mismatch/EIO for the lookup. Fix: Perform gfid heal inside lock. BUG: 1129529 Change-Id: I20c6c5e25ee27eeb906bff2f4c8ad0da18d00090 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8512 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
* cluster/afr: Set pending changelog based on filetype for new entriesPranith Kumar K2014-08-211-4/+12
| | | | | | | | | Change-Id: Ib6eea2dfe43aacf1f3446cc023adecbcf8645d48 BUG: 1132102 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8506 Reviewed-by: Anuradha Talur <atalur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Fix mem-leakPranith Kumar K2014-08-111-2/+5
| | | | | | | | | | | | | | | | | | Problem: local->xattr_req is already reffed with xattr_req that comes in lookup fop. But when afr_lookup_xattr_req_prepare is called local->xattr_req is over-written with dict_new() which leads to ref leak on the dict which came in lookup fop Fix: Create local->xattr_req only when it is NULL Change-Id: Ib1548f2df97688859f2cace44b93b3b733297c36 BUG: 1128801 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8457 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Improve inodelk/entrylk failure log messagesKrutika Dhananjay2014-07-302-7/+18
| | | | | | | | | | | Change-Id: Ie792875546b4f8e11ebf870a6e63aaf5cb221976 BUG: 1121920 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8344 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* features/changelog: Capture "correct" internal FOPsVenky Shankar2014-07-232-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes changelog capturing internal FOPs in a cascaded setup, where the intermediate master would record internal FOPs (generated by DHT on link()/rename()). This is due to I/O happening on the intermediate slave on geo-replication's auxillary mount with client-pid -1. Currently, the internal FOP capturing logic depends on client pid being non-negative and the presence of a special key in dictionary. Due to this, internal FOPs on an inter-mediate master would be recorded in the changelog. Checking client-pid being non-negative was introduced to capture AFR self-heal traffic in changelog, thereby breaking cascading setups. By coincidence, AFR self-heal daemon uses -1 as frame->root->pid thereby making is hard to differentiate b/w geo-rep's auxillary mount and self-heal daemon. Change-Id: Ib7bd71e80dd1856770391edb621ba9819cab7056 BUG: 1122037 Original-Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/8347 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Fix dirent leakPranith Kumar K2014-07-141-0/+2
| | | | | | | | | | | | | afr does itransform by taking the list of entries given by client xlator to separate list but doesn't free that list. Change-Id: Ibb4d38b4934b2bb924385c88f9d7942fad933cb9 BUG: 1117243 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8261 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com>
* cluster/afr: change message description in afr-messages.hRavishankar N2014-06-241-3/+5
| | | | | | | | | | | | | Changed the description of AFR_MSG_SUBVOL_UP to make it more meaningful. Change-Id: I30fa13c2e9a280a22d48e777d259d04a3b71deef BUG: 1075611 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/8149 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* Fix resolution issues across fuse/server/afrPranith Kumar K2014-06-142-10/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problems with fuse/server: Fuse loc touch up sets loc->name even when pargfid is not known. Server lookup does (pargfid, name) based lookup when name is set ignoring the gfid. Because of this server resolver finds that the lookup came on (null-pargfid, name) and fails the lookup with EINVAL. Fix: Don't set loc->name in loc_touchup if the pargfid is not known. Did the same even for server-resolver Problem with afr: Lets say there is a directory hierarchy a/b/c/d on the mount and the user is cd'ed into the directory. Bring down one of the bricks of replica and remove all directories/files to simulate disk replacement on that brick. Now this brick is brought back up. Creates on the cd'ed directory fail with ESTALE. Basically before sending a create of 'f' inside 'd', fuse sends a lookup to make sure the file is not present. On one of the bricks 'd' is present and 'f' is not so it sends ENOENT as response. On the new brick 'd' itself is not present. So it sends ESTALE. In afr ESTALE is considered to be special errno on witnessing which lookup has to fail. And ESTALE is given more priority than ENOENT. Due to these reasons lookup fails with ESTALE rather than ENOENT. Since lookup didn't fail with ENOENT, 'create' can't be issued so the command is failed with ESTALE. Solution: Afr needs to consider ESTALE errno normally and ENOENT needs to be given more priority so that operations like create can proceed even when only one of the brick is up and running. Whenever client xlator identifies that gfid-changed, it sets that information in lookup xdata. Afr uses this information to fail the lookup with ESTALE so that top xlator can send fresh lookup. Change-Id: Ica6ce01baef08620154050a635e6f97d51029ef6 BUG: 1106408 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8015 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Add descriptions to message-ids.Ravishankar N2014-05-301-0/+75
| | | | | | | | | | | | Change-Id: I7ec2821c96d4cbff78b4959d9b07019896cc9a2c BUG: 1075611 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7840 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Don't support heal info healed/heal-failed commandsPranith Kumar K2014-05-272-32/+21
| | | | | | | | | | Change-Id: Iecfd3150e4f4e795e3403bcb1ac56340759a37d0 BUG: 1098027 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7766 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: move messages to new logging frameworkRavishankar N2014-05-1711-21/+93
| | | | | | | | | | | | | | Change important (from a diagnostics point of view) log messages to use the gf_msg() framework. Change-Id: I0a58184bbb78989db149e67f07c140a21c781bc2 BUG: 1075611 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7784 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr: Fix bugs in quorum implementationPranith Kumar K2014-05-148-102/+164
| | | | | | | | | | | | | - Have common place to perform quorum fop wind check - Check if fop succeeded in a way that matches quorum to avoid marking changelog in split-brain. BUG: 1066996 Change-Id: Ibc5b80e01dc206b2abbea2d29e26f3c60ff4f204 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7600 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com>
* cluster/afr: Remove stale index in self-heal codepathPranith Kumar K2014-05-082-5/+7
| | | | | | | | | Change-Id: I635fc0fa955b33590f1c5b4dfec22d591ea8575c BUG: 1032894 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6592 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Fix inode_forget assert failurePranith Kumar K2014-04-282-28/+47
| | | | | | | | | | | | | | | | | | | | | | Problem: If two self-heals are triggered on same inode in parallel then one inode will be linked and the other inode will not be linked as an inode with that gfid is already linked in inode table. Calling inode-forget on that inode leads to assert failure. Fix: Always use linked inode for performing self-heal. Added inode-forgets in other places as well even though its not really a memory leak. Change-Id: Ib84bf080c8cb6a4243f66541ece587db28f9a052 BUG: 1091597 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7567 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* build: MacOSX Porting fixesHarshavardhana2014-04-244-10/+4
| | | | | | | | | | | | | | | | | | | | | git@forge.gluster.org:~schafdog/glusterfs-core/osx-glusterfs Working functionality on MacOSX - GlusterD (management daemon) - GlusterCLI (management cli) - GlusterFS FUSE (using OSXFUSE) - GlusterNFS (without NLM - issues with rpc.statd) Change-Id: I20193d3f8904388e47344e523b3787dbeab044ac BUG: 1089172 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Signed-off-by: Dennis Schafroth <dennis@schafroth.com> Tested-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Dennis Schafroth <dennis@schafroth.com> Reviewed-on: http://review.gluster.org/7503 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Set right argument order for STACK_WIND_COOKIEVijay Bellur2014-04-101-1/+1
| | | | | | | | | | Change-Id: Ia26e17a7147ed825319c7c29880b9cf4ae80a48c BUG: 1085259 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/7416 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Mem leak fixes found in valgrind for iozonePranith Kumar K2014-04-091-0/+4
| | | | | | | | | | Change-Id: I869d191dc3470b2208c17343bbf772f01ef744cb BUG: 1085511 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7424 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Init local on txn-frame for zerofillPranith Kumar K2014-04-081-1/+1
| | | | | | | | | | Change-Id: I516f4fb0237dd0b3e512117bf987cea69f8678b8 BUG: 1084485 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7407 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* afr: Simple 1-liner fix for crash in RackspaceBrian Foster2014-04-041-1/+1
| | | | | | | | BUG: 1084485 Change-Id: I89ddf10add041638ef70baebbce0ec2807ef4b6d Signed-off-by: Justin Clift <justin@gluster.org> Reviewed-on: http://review.gluster.org/7402 Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Remove eager-lock stub on finodelk failurePranith Kumar K2014-04-023-6/+23
| | | | | | | | | | | | | | | | | | | | Problem: For write fops afr's transaction eager-lock init adds transactions that can share eager-lock to fdctx list. But if eager-lock finodelk fop fails the stub remains in the list. This could later lead to corruption of the list and lead to infinite loop on the list leading to a mount hang. Fix: Remove the stub when finodelk fails. Change-Id: I0ed4bc6b62f26c5e891c1181a6871ee6e4f4f5fd BUG: 1063190 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6944 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Sparse file self-heal cangesPranith Kumar K2014-03-261-9/+28
| | | | | | | | | | | | | - Fix boundary condition for offset - Honour data-self-heal-algorithm option - Added tests for sparse file self-healing Change-Id: I14bb1c9d04118a3df4072f962fc8f2f197391d95 BUG: 1080707 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7339 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: refactorAnand Avati2014-03-2227-18977/+8732
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Remove client side self-healing completely (opendir, openfd, lookup) - Re-work readdir-failover to work reliably in case of NFS - Remove unused/dead lock recovery code - Consistently use xdata in both calls and callbacks in all FOPs - Per-inode event generation, used to force inode ctx refresh - Implement dirty flag support (in place of pending counts) - Eliminate inode ctx structure, use read subvol bits + event_generation - Implement inode ctx refreshing based on event generation - Provide backward compatibility in transactions - remove unused variables and functions - make code more consistent in style and pattern - regularize and clean up inode-write transaction code - regularize and clean up dir-write transaction code - regularize and clean up common FOPs - reorganize transaction framework code - skip setting xattrs in pending dict if nothing is pending - re-write self-healing code using syncops - re-write simpler self-heal-daemon Change-Id: I1e4080c9796c8a2815c2dab4be3073f389d614a8 BUG: 1021686 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6010 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* core: add @xdata parameter to syncop_[f]removexattr()Anand Avati2014-02-131-3/+3
| | | | | | | | | | | To be used in afr metadata self-heal Change-Id: I8dac4b19d61e331702427eeb5b606aab3d20b328 BUG: 1021686 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6941 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/afr: goto statements may cause exit before memory is freed.Christopher R. Hertel2014-02-101-9/+28
| | | | | | | | | | | | | | | | | | | | | | | Memory is allocated for pump_priv and for pump_priv->resume_path, but if an error is detected the references to that memory go out of scope and the memory is never freed. This patch assures that the memory is freed on error. Patchset 2: These are Kaleb's recommended changes which, compared to my original fix, are more comprehensive and provide a more complete resolution to the memory leakage bugs in this function. The bug reported by Coverity was limited to a single memory allocation. BUG: 789278 CID: 1124737 Change-Id: Ie239e3b5d28d97308bf948efec6a92f107bc648b Signed-off-by: Christopher R. Hertel <crh@redhat.com> Reviewed-on: http://review.gluster.org/6929 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Fix memory leak.Poornima2014-02-081-0/+1
| | | | | | | | | Change-Id: I811d104684905a5a9a794cde8e925bd1a97f6546 BUG: 789278 Signed-off-by: Poornima <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/6906 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Change default_value for option self-heal-daemonVijay Bellur2014-01-271-1/+1
| | | | | | | | | Change-Id: Ic3c8e179a63e82a4e416aea620796f8bb3236c7c BUG: 1052759 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/6706 Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* syncop: Change return value of syncopPranith Kumar K2014-01-192-15/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: We found a day-1 bug when syncop_xxx() infra is used inside a synctask with compilation optimization (CFLAGS -O2). Detailed explanation of the Root cause: We found the bug in 'gf_defrag_migrate_data' in rebalance operation: Lets look at interesting parts of the function: int gf_defrag_migrate_data (xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc, dict_t *migrate_data) { ..... code section - [ Loop ] while ((ret = syncop_readdirp (this, fd, 131072, offset, NULL, &entries)) != 0) { ..... code section - [ ERRNO-1 ] (errno of readdirp is stored in readdir_operrno by a thread) /* Need to keep track of ENOENT errno, that means, there is no need to send more readdirp() */ readdir_operrno = errno; ..... code section - [ SYNCOP-1 ] (syncop_getxattr is called by a thread) ret = syncop_getxattr (this, &entry_loc, &dict, GF_XATTR_LINKINFO_KEY); code section - [ ERRNO-2] (checking for failures of syncop_getxattr(). This may not always be executed in same thread which executed [SYNCOP-1]) if (ret < 0) { if (errno != ENODATA) { loglevel = GF_LOG_ERROR; defrag->total_failures += 1; ..... } the function above could be executed by thread(t1) till [SYNCOP-1] and code from [ERRNO-2] can be executed by a different thread(t2) because of the way syncop-infra schedules the tasks. when the code is compiled with -O2 optimization this is the assembly code that is generated: [ERRNO-1] 1165 readdir_operrno = errno; <<---- errno gets expanded as *(__errno_location()) 0x00007fd149d48b60 <+496>: callq 0x7fd149d410c0 <address@hidden> 0x00007fd149d48b72 <+514>: mov %rax,0x50(%rsp) <<------ Address returned by __errno_location() is stored in a special location in stack for later use. 0x00007fd149d48b77 <+519>: mov (%rax),%eax 0x00007fd149d48b79 <+521>: mov %eax,0x78(%rsp) .... [ERRNO-2] 1281 if (errno != ENODATA) { 0x00007fd149d492ae <+2366>: mov 0x50(%rsp),%rax <<----- Because it already stored the address returned by __errno_location(), it just dereferences the address to get the errno value. BUT THIS CODE NEED NOT BE EXECUTED BY SAME THREAD!!! 0x00007fd149d492b3 <+2371>: mov $0x9,%ebp 0x00007fd149d492b8 <+2376>: mov (%rax),%edi 0x00007fd149d492ba <+2378>: cmp $0x3d,%edi The problem is that __errno_location() value of t1 and t2 are different. So [ERRNO-2] ends up reading errno of t1 instead of errno of t2 even though t2 is executing [ERRNO-2] code section. When code is compiled without any optimization for [ERRNO-2]: 1281 if (errno != ENODATA) { 0x00007fd58e7a326f <+2237>: callq 0x7fd58e797300 <address@hidden><<--- As it is calling __errno_location() again it gets the location from t2 so it works as intended. 0x00007fd58e7a3274 <+2242>: mov (%rax),%eax 0x00007fd58e7a3276 <+2244>: cmp $0x3d,%eax 0x00007fd58e7a3279 <+2247>: je 0x7fd58e7a32a1 <gf_defrag_migrate_data+2287> Fix: Make syncop_xxx() return (-errno) value as the return value in case of errors and all the functions which make syncop_xxx() will need to use (-ret) to figure out the reason for failure in case of syncop_xxx() failures. Change-Id: I314d20dabe55d3e62ff66f3b4adb1cac2eaebb57 BUG: 1040356 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6475 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Unable to self heal symbolic linksVenkatesh Somyajulu2014-01-132-2/+4
| | | | | | | | | | | | | | | | | | | | | | Problem: Under the entry self heal, readlink is done at the source and sink. When readlink is done at the sink, because link is not present at the sink, afr expects ENOENT. AFR translator takes decisions for new link creation based on ENOENT but server translator is modified to return ESTALE because of which afr xlator is not able to heal. Fix: The check for inode absence at server includes ESTALE as well. Change-Id: I319e4cb4156a243afee79365b7b7a5a7823e9a24 BUG: 1046624 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/6599 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Stop index crawl on pending full crawlPranith Kumar K2014-01-081-5/+35
| | | | | | | | | | | | | | Full crawl is executed when index self-heal is useless, like disk replacement. So if there are on-going index crawls, they should be stopped inorder to start full self-heals. Change-Id: I9a1545f1ec4ad9999dc08523ce859e4fa152e214 BUG: 1049355 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6659 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
generated by cgit (git 2.34.1) at 2024-04-28 10:53:18 +0000