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* cluster/afr: Heal directory rename without rmdir/mkdirPranith Kumar K2020-10-011-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem1: When a directory is renamed while a brick is down entry-heal always did an rm -rf on that directory on the sink on old location and did mkdir and created the directory hierarchy again in the new location. This is inefficient. Problem2: Renamedir heal order may lead to a scenario where directory in the new location could be created before deleting it from old location leading to 2 directories with same gfid in posix. Fix: As part of heal, if oldlocation is healed first and is not present in source-brick always rename it into a hidden directory inside the sink-brick so that when heal is triggered in new-location shd can rename it from this hidden directory to the new-location. If new-location heal is triggered first and it detects that the directory already exists in the brick, then it should skip healing the directory until it appears in the hidden directory. Credits: Ravi for rename-data-loss.t script Fixes: #1211 Change-Id: I0cba2006f35cd03d314d18211ce0bd530e254843 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* afr: more quorum checks in lookup and new entry markingRavishankar N2020-06-161-2/+0
| | | | | | | | | | | | | | | | Problem: See github issue for details. Fix: -In lookup if the entry exists in 2 out of 3 bricks, don't fail the lookup with ENOENT just because there is an entrylk on the parent. Consider quorum before deciding. -If entry FOP does not succeed on quorum no. of bricks, do not perform new entry mark. Fixes: #1303 Change-Id: I56df8c89ad53b29fa450c7930a7b7ccec9f4a6c5 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* cluster/afr: Prioritize ENOSPC over other errorskarthik-us2020-06-051-0/+80
| | | | | | | | | | | | | | | | | | | | | | Problem: In a replicate/arbiter volume if file creations or writes fails on quorum number of bricks and on one brick it is due to ENOSPC and on other brick it fails for a different reason, it may fail with errors other than ENOSPC in some cases. Fix: Prioritize ENOSPC over other lesser priority errors and do not set op_errno in posix_gfid_set if op_ret is 0 to avoid receiving any error_no which can be misinterpreted by __afr_dir_write_finalize(). Also removing the function afr_has_arbiter_fop_cbk_quorum() which might consider a successful reply form a single brick as quorum success in some cases, whereas we always need fop to be successful on quorum number of bricks in arbiter configuration. Change-Id: I106e267f8b9451f681022f1cccb410d9bc824c08 Fixes: #1254 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* tests: Fix bug-1101647.t test case failurekarthik-us2020-04-291-0/+2
| | | | | | | | | | | | | | Problem: tests/bugs/replicate/bug-1101647.t test case fails sporadically in the volume heal since connection to the bricks with shd was not being checked before running the index heal. Build link: https://build.gluster.org/job/regression-test-burn-in/5007/ Fix: Check for the connection status of the bricks with shd before performing the index heal. Change-Id: Ie7060f379b63bef39fd4f9804f6e22e0a25680c1 Updates: #1154 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* afr: mark pending xattrs as a part of metadata healRavishankar N2020-04-021-0/+59
| | | | | | | | | | | | | | | | | | | ...if pending xattrs are zero for all children. Problem: If there are no pending xattrs and a metadata heal needs to be performed, it can be possible that we end up with xattrs inadvertendly deleted from all bricks, as explained in the BZ. Fix: After picking one among the sources as the good copy, mark pending xattrs on all sources to blame the sinks. Now even if this metadata heal fails midway, a subsequent heal will still choose one of the valid sources that it picked previously. Fixes: #1067 Change-Id: If1b050b70b0ad911e162c04db4d89b263e2b8d7b Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: prevent spurious entry heals leading to gfid split-brainRavishankar N2020-02-182-14/+62
| | | | | | | | | | | | | | | | | | | | Problem: In a hyperconverged setup with granular-entry-heal enabled, if a file is recreated while one of the bricks is down, and an index heal is triggered (with the brick still down), entry-self heal was doing a spurious heal with just the 2 good bricks. It was doing a post-op leading to removal of the filename from .glusterfs/indices/entry-changes as well as erroneous setting of afr xattrs on the parent. When the brick came up, the xattrs were cleared, resulting in the renamed file not getting healed and leading to gfid split-brain and EIO on the mount. Fix: Proceed with entry heal only when shd can connect to all bricks of the replica, just like in data and metadata heal. fixes: bz#1801624 Change-Id: I916ae26ad1fabf259bc6362da52d433b7223b17e Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: restore timestamp of files during metadata healSheetal Pamecha2020-01-241-0/+74
| | | | | | | | | | | For files: During metadata heal, we restore timestamps only for non-regular (char, block etc.) files. Extenting it for regular files as timestamp is updated via touch command also fixes: bz#1787274 Change-Id: I26fe4fb6dff679422ba4698a7f828bf62ca7ca18 Signed-off-by: Sheetal Pamecha <spamecha@redhat.com>
* tests: Fix spurious failurePranith Kumar K2019-10-161-2/+2
| | | | | | fixes: bz#1759002 Change-Id: I4d49e1c2ca9b3c1d74b9dd5a30f1c66983a76529 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* Fix spurious failure in bug-1744548-heal-timeout.tPranith Kumar K2019-10-091-6/+11
| | | | | | | | | | | | | | | | | | | | | Script was assuming that the heal would have triggered by the time test was executed, which may not be the case. It can lead to following failures when the race happens: ... 18:29:45 not ok 14 [ 85/ 1] < 26> '[ 331 == 333 ]' -> '' ... 18:29:45 not ok 16 [ 10097/ 1] < 33> '[ 668 == 666 ]' -> '' Heal on 3rd brick didn't start completely first time the command was executed. So the extra count got added to the next profile info. Fixed it by depending on cumulative stats and waiting until the count is satisfied using EXPECT_WITHIN fixes: bz#1759002 Change-Id: I3b410671c902d6b1458a757fa245613cb29d967d Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* cluster/afr: Heal entries when there is a source & no healed_sinkskarthik-us2019-10-091-0/+89
| | | | | | | | | | | | | | | | | | | | Problem: In a situation where B1 blames B2, B2 blames B1 and B3 doesn't blame anything for entry heal, heal will not complete even though we have clear source and sinks. This will happen because while doing afr_selfheal_find_direction() only the bricks which are blamed by non-accused bricks are considered as sinks. Later in __afr_selfheal_entry_finalize_source() when it tries to mark all the non-sources as sinks it fails to do so because there won't be any healed_sinks marked, no witness present and there will be a source. Fix: If there is a source and no healed_sinks, then reset all the locked sources to 0 and healed sinks to 1 to do conservative merge. Change-Id: If40d8bc95d52a52b2730f55bdcf135109b421548 Fixes: bz#1749322 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* tests: Fix spurious failure in bug-1134691-afr-lookup-metadata-heal.tRavishankar N2019-10-091-0/+2
| | | | | | | | | | | | | Problem: The .t was examining the sink brick's iatt value before the launched client-side metadata heal got a chance to complete. Fix: Wait for heal completion. Fixes: bz#1759081 Change-Id: I4dd4e3a1cccf35fd18e8cdfea6aa76a726a4763b Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: support split-brain CLI for replica 3Ravishankar N2019-10-091-0/+111
| | | | | | | | | | | | | | | | | | | | | | | | Ever since we added quorum checks for lookups in afr via commit bd44d59741bb8c0f5d7a62c5b1094179dd0ce8a4, the split-brain resolution commands would not work for replica 3 because there would be no readables for the lookup fop. The argument was that split-brains do not occur in replica 3 but we do see (data/metadata) split-brain cases once in a while which indicate that there are a few bugs/corner cases yet to be discovered and fixed. Fortunately, commit 8016d51a3bbd410b0b927ed66be50a09574b7982 added GF_CLIENT_PID_GLFS_HEALD as the pid for all fops made by glfsheal. If we leverage this and allow lookups in afr when pid is GF_CLIENT_PID_GLFS_HEALD, split-brain resolution commands will work for replica 3 volumes too. Likewise, the check is added in shard_lookup as well to permit resolving split-brains by specifying "/.shard/shard-file.xx" as the file name (which previously used to fail with EPERM). Change-Id: I3c543dea79caf7cfbc1633e9089cb1cdd2538ba9 Fixes: bz#1756938 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* ctime/rebalance: Heal ctime xattr on directory during rebalanceKotresh HR2019-09-161-0/+6
| | | | | | | | | | | | | | | | After add-brick and rebalance, the ctime xattr is not present on rebalanced directories on new brick. This patch fixes the same. Note that ctime still doesn't support consistent time across distribute sub-volume. This patch also fixes the in-memory inconsistency of time attributes when metadata is self healed. Change-Id: Ia20506f1839021bf61d4753191e7dc34b31bb2df fixes: bz#1734026 Signed-off-by: Kotresh HR <khiremat@redhat.com>
* tests: Fix spurious failurePranith Kumar K2019-09-111-2/+20
| | | | | | | | | | If heal from next brick starts after the first brick completes heal, then opendir on the brick can change atime leading to failure of the test. When ctime is disabled it is better to just check mtime to be same after heal. fixes: bz#1751134 Change-Id: Ia03e30fd547e6bbe85c1e299845ffa122f3a2692 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* afr/lookup: Pass xattr_req in while doing a selfheal in lookupMohammed Rafi KC2019-09-051-0/+52
| | | | | | | | | | We were not passing xattr_req when doing a name self heal as well as a meta data heal. Because of this, some xdata was missing which causes i/o errors Change-Id: Ibfb1205a7eb0195632dc3820116ffbbb8043545f Fixes: bz#1728770 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* afr: wake up index healer threadsRavishankar N2019-08-301-0/+42
| | | | | | | | | | | | | ...whenever shd is re-enabled after disabling or there is a change in `cluster.heal-timeout`, without needing to restart shd or waiting for the current `cluster.heal-timeout` seconds to expire. See BZ 1743988 for more details. Change-Id: Ia5ebd7c8e9f5b54cba3199c141fdd1af2f9b9bfe fixes: bz#1744548 Reported-by: Glen Kiessling <glenk1973@hotmail.com> Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: restore timestamp of parent dir during entry-healRavishankar N2019-08-141-0/+78
| | | | | | Fixes: bz#1734370 Change-Id: I29e338bac62104233a6f80212df8d0fb016affda Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* tests: fix bug-880898.t crashRavishankar N2019-08-121-0/+7
| | | | | | | | | | | | | | | | | | | | Problem: https://build.gluster.org/job/centos7-regression/7337/consoleFull indicates the shd crashing for this .t. On looking at the core, I see the crash is at the time of shd init and glusterfs context is null: (gdb) bt (gdb) p ctx $2 = (glusterfs_ctx_t *) 0xf00000000 The .t is killing all gluster processes immediately after volume start, so it looks like a race between shd coming up and it being killed. Fix: Kill gluster processes only after they are up and running. Fixes: bz#1740017 Change-Id: I7cf589201669bd9f535e968d147015dc99e9a4b6 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* tests: Fix bug-1717819-metadata-split-brain-detection.t failurekarthik-us2019-07-151-0/+6
| | | | | | | | | | | | | | | | | | Problem: tests/bugs/replicate/bug-1717819-metadata-split-brain-detection.t fails intermittently in test cases #49 & #50, which compare the values of the user set xattr values after enabling the heal. We are not waiting for the heal to complete before comparing those values, which might lead those tests to fail. Fix: Wait till the HEAL-TIMEOUT before comparing the xattr values. Also cheking for the shd to come up and the bricks to connect to the shd process in another case. Change-Id: I0e245b328da9df23ce70c5300278fad1c1d9f7ff Fixes: bz#1729847 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* cluster/afr: Fix incorrect reporting of gfid & type mismatchkarthik-us2019-07-121-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problems: 1. When checking for type and gfid mismatch, if the type or gfid is unknown because of missing gfid handle and the gfid xattr it will be reported as type or gfid mismatch and the heal will not complete. 2. If the source selected during entry heal has null gfid the same will be sent to afr_lookup_and_heal_gfid(). In this function when we try to assign the gfid on the bricks where it does not exist, we are considering the same gfid and try to assign that on those bricks. This will fail in posix_gfid_set() since the gfid sent is null. Fix: If the gfid sent to afr_lookup_and_heal_gfid() is null choose a valid gfid before proceeding to assign the gfid on the bricks where it is missing. In afr_selfheal_detect_gfid_and_type_mismatch(), do not report type/gfid mismatch if the type/gfid is unknown or not set. Change-Id: Ia06552e4dc4a9f89cb7f5302833604bd21bbf7da fixes: bz#1722507 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* Cluster/afr: Don't treat all bricks having metadata pending as split-brainkarthik-us2019-06-102-64/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem: We currently don't have a roll-back/undoing of post-ops if quorum is not met. Though the FOP is still unwound with failure, the xattrs remain on the disk. Due to these partial post-ops and partial heals (healing only when 2 bricks are up), we can end up in metadata split-brain purely from the afr xattrs point of view i.e each brick is blamed by atleast one of the others for metadata. These scenarios are hit when there is frequent connect/disconnect of the client/shd to the bricks. Fix: Pick a source based on the xattr values. If 2 bricks blame one, the blamed one must be treated as sink. If there is no majority, all are sources. Once we pick a source, self-heal will then do the heal instead of erroring out due to split-brain. This patch also adds restriction of all the bricks to be up to perform metadata heal to avoid any metadata loss. Removed the test case tests/bugs/replicate/bug-1468279-source-not-blaming-sinks.t as it was doing metadata heal even when only 2 of 3 bricks were up. Change-Id: I07a9d62f84ceda329dcab1f02a33aeed258dcb09 fixes: bz#1717819 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* tests: improve and fix some test scriptsXavier Hernandez2019-05-096-11/+62
| | | | | | Change-Id: Iceefe22af754096c599dc570d4894d14fce4deae Updates: bz#1193929 Signed-off-by: Xavier Hernandez <xhernandez@redhat.com>
* cluster/afr: Remove local from owners_list on failure of lock-acquisitionPranith Kumar K2019-04-151-0/+47
| | | | | | | | | | | | | When eager-lock lock acquisition fails because of say network failures, the local is not being removed from owners_list, this leads to accumulation of waiting frames and the application will hang because the waiting frames are under the assumption that another transaction is in the process of acquiring lock because owner-list is not empty. Handled this case as well in this patch. Added asserts to make it easier to find these problems in future. fixes bz#1696599 Change-Id: I3101393265e9827755725b1f2d94a93d8709e923 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* afr: thin-arbiter read txn fixesRavishankar N2019-03-291-0/+40
| | | | | | | | | | | | | - Fixes afr_ta_read_txn() to handle inode refresh failures. code-path. - Fixes a double free issue of dict. Note: This patch address post-merge review comments for commit 69532c141be160b3fea03c1579ae4ac13018dcdf fixes: bz#1686398 Change-Id: Id5299b45b68569d47df6b73755918237a1592cb4 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* test: Fix a missing a '$' symbolMohammed Rafi KC2019-03-131-1/+1
| | | | | | | | | | While checking a test case using EXPECT_WITHIN, the argument is actually missing a '$' symbol to denote the token as a variable in bash Change-Id: I5b9150acdea000b29e94cfb01d975c77f5ece3e5 fixes: bz#1688116 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* cluster/afr: Send truncate on arbiter brick from SHDkarthik-us2019-03-111-0/+38
| | | | | | | | | | | | | | | | | | | Problem: In an arbiter volume configuration SHD will not send any writes onto the arbiter brick even if there is data pending marker for the arbiter brick. If we have a arbiter setup on the geo-rep master and there are data pending markers for the files on arbiter brick, SHD will not mark any data changelog during healing. While syncing the data from master to slave, if the arbiter-brick is considered as ACTIVE, then there is a chance that slave will miss out some data. If the arbiter brick is being newly added or replaced there is a chance of slave missing all the data during sync. Fix: If there is data pending marker for the arbiter brick, send truncate on the arbiter brick during heal, so that it will record truncate as the data transaction in changelog. Change-Id: I3242ba6cea6da495c418ef860d9c3359c5459dec fixes: bz#1686568 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* tests: run nfs tests only if --enable-gnfs is providedAmar Tumballi2019-01-242-0/+5
| | | | | | Fixes: bz#1665358 Change-Id: Idbf88ec3ac683733b32c313377eeb72f2819bf0d Signed-off-by: Amar Tumballi <amarts@redhat.com>
* afr: not resolve splitbrains when copies are of same sizeIraj Jamali2019-01-221-0/+55
| | | | | | | | | | | | Automatic Splitbrain with size as policy must not resolve splitbrains when the copies are of same size. Determining if the sizes of copies are same and returning -1 in that case. updates: bz#1655052 Change-Id: I3d8e8b4d7962b070ed16c3ee02a1e5a926fd5eab Signed-off-by: Iraj Jamali <ijamali@redhat.com>
* afr: Splitbrain with size as policy must not resolve for directorySheetal Pamecha2019-01-211-0/+55
| | | | | | | | | | | | | | In automatic Splitbrain resolution when favorite child policy is set as size, split brain resolution must not work for directories. Currently, if a directory is in split brain with both copies having same size, the source is selected arbitrarily and healed. fixes: bz#1655050 Change-Id: I5739498639c17c89874cc577362e543adab55f5d Signed-off-by: Sheetal Pamecha <sheetal.pamecha08@gmail.com>
* cluster/afr: Disable client side heals in AFR by default.Sunil Kumar Acharya2019-01-104-0/+14
| | | | | | | | | With this changeset, default value for the AFR client side heal volume option is set to "off" fixes: bz#1663102 Change-Id: Ie4016932339c4896487e3e7cb5caca68739b7ba2 Signed-off-by: Sunil Kumar Acharya <sheggodu@redhat.com>
* cluster/afr: Allow lookup on root if it is from ADD_REPLICA_MOUNTkarthik-us2018-12-181-0/+95
| | | | | | | | | | | | | | | | | | | | | Problem: When trying to convert a plain distribute volume to replica-3 or arbiter type it is failing with ENOTCONN error as the lookup on the root will fail as there is no quorum. Fix: Allow lookup on root if it is coming from the ADD_REPLICA_MOUNT which is used while adding bricks to a volume. It will try to set the pending xattrs for the newly added bricks to allow the heal to happen in the right direction and avoid data loss scenarios. Note: This fix will solve the problem of type conversion only in the case where the volume was mounted at least once. The conversion of non mounted volumes will still fail since the dht selfheal tries to set the directory layout will fail as they do that with the PID GF_CLIENT_PID_NO_ROOT_SQUASH set in the frame->root. Change-Id: Ic511939981dad118cc946754341318b164954b3b fixes: bz#1655854 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* cluster/afr: Do not update read_subvol in inode_ctx after rename/link fopkarthik-us2018-12-121-0/+40
| | | | | | | | | | | Since rename/link fops on a file will not change any data in it, it should not update the read_subvol values in the inode_ctx, which interprets the data & metadata readable subvols for that file. The old read_subvol values should be retained even after the rename/link operations. Change-Id: I068044a426823a566f5bea8aa063cd689199d6dd fixes: bz#1657783 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* afr: assign gfid during name heal when no 'source' is present.Ravishankar N2018-12-031-0/+149
| | | | | | | | | | | | | | | | | | Problem: If parent dir is in split-brain or has dirty xattrs set, and the file has gfid missing on one of the bricks, then name heal won't assign the gfid. Fix: Use the brick we select the gfid from as the 'source'. Note: Problem was found while trying to debug a split-brain issue on Cynthia Zhou's setup. updates: bz#1637249 Change-Id: Id088d4f0fb017aa35122de426654194e581ed742 Reported-by: Cynthia Zhou <cynthia.zhou@nokia-sbell.com> Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* tiering: remove the translator from build and glusterdAmar Tumballi2018-11-021-53/+0
| | | | | | | | | | | | | Based on the proposal to remove few features as they are not actively maintained [1], removing tier translator from the build. Also make sure there are no regression tests involving tiering feature are present. [1] https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html Change-Id: I2c177f711f9b54b7b24e1a13525ff3132bd9a9c5 updates: bz#1642807 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* tests: check for shd up status in bug-1637802-arbiter-stale-data-heal-lock.tRavishankar N2018-10-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: https://review.gluster.org/#/c/glusterfs/+/21427/ seems to be failing this .t spuriously. On checking one of the failure logs, I see: 22:05:44 Launching heal operation to perform index self heal on volume patchy has been unsuccessful: 22:05:44 Self-heal daemon is not running. Check self-heal daemon log file. 22:05:44 not ok 20 , LINENUM:38 In glusterd log: [2018-10-18 22:05:44.298832] E [MSGID: 106301] [glusterd-syncop.c:1352:gd_stage_op_phase] 0-management: Staging of operation 'Volume Heal' failed on localhost : Self-heal daemon is not running. Check self-heal daemon log file But the tests which preceed this check whether via a statedump if the shd is conected to the bricks, and they have succeeded and even started healing. From glustershd.log: [2018-10-18 22:05:40.975268] I [MSGID: 108026] [afr-self-heal-common.c:1732:afr_log_selfheal] 0-patchy-replicate-0: Completed data selfheal on 3b83d2dd-4cf2-4ea3-a33e-4275be40f440. sources=[0] 1 sinks=2 So the only reason I can see launching heal via cli failing is a race where shd has been spawned but glusterd has not yet updated in-memory that it is up, and hence failing the CLI. Fix: Check for shd up status before launching heal via CLI Change-Id: Ic88abf14ad3d51c89cb438db601fae4df179e8f4 fixes: bz#1641344 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: prevent winding inodelks twice for arbiter volumesRavishankar N2018-10-101-0/+44
| | | | | | | | | | | | | | | | | | Problem: In an arbiter volume, if there is a pending data heal of a file only on arbiter brick, self-heal takes inodelks twice due to a code-bug but unlocks it only once, leaving behind a stale lock on the brick. This causes the next write to the file to hang. Fix: Fix the code-bug to take lock only once. This bug was introduced master with commit eb472d82a083883335bc494b87ea175ac43471ff Thanks to Pranith Kumar K <pkarampu@redhat.com> for finding the RCA. fixes: bz#1637802 Change-Id: I15ad969e10a6a3c4bd255e2948b6be6dcddc61e1 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: fix incorrect reporting of directory split-brainRavishankar N2018-09-211-0/+62
| | | | | | | | | | | | | | | | | Problem: When a directory has dirty xattrs due to failed post-ops or when replace/reset brick is performed, AFR does a conservative merge as expected, but heal-info reports it as split-brain because there are no clear sources. Fix: Modify pending flag to contain information about pending heals and split-brains. For directories, if spit-brain flag is not set,just show them as needing heal and not being in split-brain. Fixes: bz#1626994 Change-Id: I09ef821f6887c87d315ae99e6b1de05103cd9383 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* tests: fixes to bug-1015990-rep.tRavishankar N2018-09-181-14/+7
| | | | | | | | | | | - check that the shd is connected to brick before running statistics command - remove sleep statements - remove unneeded ($count-$value==0) test when it is known that both values will be same Fixes: bz#1625850 Change-Id: Ifcd4887f0238031e5bca803cd9bfdb75a6e6c01b Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* Land part 2 of clang-format changesGluster Ant2018-09-121-39/+39
| | | | | Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4 Signed-off-by: Nigel Babu <nigelb@redhat.com>
* multiple files: calloc -> mallocYaniv Kaul2018-09-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xlators/cluster/stripe/src/stripe-helpers.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/tier.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/dht-layout.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/dht-helper.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/dht-common.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/afr/src/afr.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/afr/src/afr-inode-read.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible tests/bugs/replicate/bug-1250170-fsync.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible tests/basic/gfapi/gfapi-async-calls-test.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible tests/basic/ec/ec-fast-fgetxattr.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible rpc/xdr/src/glusterfs3.h: Move to GF_MALLOC() instead of GF_CALLOC() when possible rpc/rpc-transport/socket/src/socket.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible rpc/rpc-lib/src/rpc-clnt.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible extras/geo-rep/gsync-sync-gfid.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-xml-output.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-rpc-ops.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-volume.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-system.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-snapshot.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-peer.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-global.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible It doesn't make sense to calloc (allocate and clear) memory when the code right away fills that memory with data. It may be optimized by the compiler, or have a microscopic performance improvement. In some cases, also changed allocation size to be sizeof some struct or type instead of a pointer - easier to read. In some cases, removed redundant strlen() calls by saving the result into a variable. 1. Only done for the straightforward cases. There's room for improvement. 2. Please review carefully, especially for string allocation, with the terminating NULL string. Only compile-tested! updates: bz#1193929 Original-Author: Yaniv Kaul <ykaul@redhat.com> Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Signed-off-by: Amar Tumballi <amarts@redhat.com> Change-Id: I16274dca4078a1d06ae09a0daf027d734b631ac2
* cluster/afr: Fix bug-1586020-mark-dirty-for-entry-txn-on-quorum-failure.tkarthik-us2018-08-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Problem: In line #13 of the test case, it checks whether the file is present on first 2 bricks or not. If it is not present on even one of the bricks it will break the loop and checks for the dirty marking on the parent on the 3rd brick and checks for file not present on the 1st and 2nd bricks. The below scenario can happen in this case: - File gets created on 1st and 3rd bricks - In line #13 it sees file is not present on both 1st & 2nd bricks and breaks the loop - In line #51 test fails because the file will be present on the 1st brick - In line #53 test will fail because the file creation was not failed on quorum bricks and dirty marking will not be there on the parent on 3rd brick Fix: Don't break from the loop if file is present on either brick 1 or brick 2. Change-Id: I918068165e4b9124c1de86cfb373801b5b432bd9 fixes: bz#1612054 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* posix: Delete the entry if gfid link creation failskarthik-us2018-08-201-1/+2
| | | | | | | | | | | | | | | Problem: If the gfid link file inside .glusterfs is not present for a file, the operations which are dependent on the gfid will fail, complaining the link file does not exists inside .glusterfs. Fix: If the link file creation fails, fail the entry creation operation and delete the original file. Change-Id: Id767511de2da46b1f45aea45cb68b98d965ac96d fixes: bz#1612037 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* cluster/afr: Fix bug-1433571-undo-pending-only-on-up-bricks.tkarthik-us2018-08-131-2/+2
| | | | | | | | | | | | | | Problem: The test case was checking for the entry pending marker reset on the root after performing client side lookup at line #60-63. But sometimes the entry heal was not getting completed immediately. Fix: Wait for the entry heal to complete before checking the changelog. Change-Id: I42fde21b04a126ab044ce58373a996d72f125d96 fixes: bz#1614730 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* tests: potential fixes to bugs/replicate/bug-1408712.tRavishankar N2018-08-131-2/+15
| | | | | | | | See BZ for details. Change-Id: I2cc2064f14d80271ebcc21747103ce4cee848cbf fixes: bz#1615078 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* Make sure EXPECT_WITHIN executes the statement multiple timesPranith Kumar K2018-08-121-6/+6
| | | | | | | | | | | | | When we pass a command to be executed in EXPECT_WITHIN and we use `` the value is passed by value, so if the first execution gives a result that is different from the expected value, EXPECT_WITHIN test will fail because the command will not be re-evaluated. Changed the expression with `` to a function. Added sleep(3) in afr.c for reconfigure to both RC and re-test after the change. fixes bz#1614662 Change-Id: I3bc8a75b996729261aa48067f6ed8da9c6273b13 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* performance/md-cache: update cache only from fops issued after previous ↵Raghavendra G2018-08-023-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | invalidation Invalidations are triggered mainly by two codepaths - upcall and write-behind unwinding a cached write with zeroed out stat. For the case of upcall, following race can happen: * stat s1 is fetched from brick * invalidation is detected on brick * invalidation is propagated to md-cache and cache is invalidated * s1 updates md-cache with a stale state For the case of write-behind, imagine following sequence of operations, * A stat s1 was issued from application thread t1 when size of file was s1 * stat s1 completes on brick stack, but yet to reach md-cache * A write w1 from application thread t2 extends file to size s2 is cached in write-behind and response is unwound with zeroed out stat * md-cache while handling write-cbk, invalidates cache * md-cache receives response for s1, updates cache with stale stat with size of s1 overwriting invalidation state Fix is to remember when s1 was incident on md-cache and update cache with results of s1 only if the it was incident after invalidation of cache. This patch identified some bugs in regression tests which is tracked in https://bugzilla.redhat.com/show_bug.cgi?id=1608158. As a stop gap measure I am marking following tests as bad basic/afr/split-brain-resolution.t bugs/bug-1368312.t bugs/replicate/bug-1238398-split-brain-resolution.t bugs/replicate/bug-1417522-block-split-brain-resolution.t bugs/replicate/bug-1438255-do-not-mark-self-accusing-xattrs.t Change-Id: Ia4bb9dd36494944e2d91e9e71a79b5a3974a8c77 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Updates: bz#1512691
* cluster/afr: Mark dirty for entry transactions for quorum failureskarthik-us2018-07-161-0/+73
| | | | | | | | | | | | | | | | | | Problem: If an entry creation transaction fails on quprum number of bricks it might end up setting the pending changelogs on the file itself on the brick where it got created. But the parent does not have any entry pending marker set. This will lead to the entry not getting healed by the self heal daemon automatically. Fix: For entry transactions mark dirty on the parent if it fails on quorum number of bricks, so that the heal can do conservative merge and entry gets healed by shd. Change-Id: I56448932dd409b3ddb095e2ae32e037b6157a607 fixes: bz#1586020 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* storage/posix: Fix posix_symlinks_match()Pranith Kumar K2018-06-261-5/+10
| | | | | | | | | | 1) snprintf into linkname_expected should happen with PATH_MAX 2) comparison should happen with linkname_actual with complete string linkname_expected fixes bz#1595190 Change-Id: Ic3b3c362dc6c69c046b9a13e031989be47ecff14 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* afr: heal gfids when file is not present on all bricksRavishankar N2018-06-191-0/+128
| | | | | | | | | | | commit 20fa80057eb430fd72b4fa31b9b65598b8ec1265 introduced a regression wherein if a file is present in only 1 brick of replica *and* doesn't have a gfid associated with it, it doesn't get healed upon the next lookup from the client. Fix it. Change-Id: I7d1111dcb45b1b8b8340a7d02558f05df70aa599 fixes: bz#1591193 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: fix bug-1363721.t failureRavishankar N2018-05-211-2/+8
| | | | | | | | | | | | | | | | | | | | | | Problem: In the .t, when the only good brick was brought down, writes on the fd were still succeeding on the bad bricks. The inflight split-brain check was marking the write as failure but since the write succeeded on all the bad bricks, afr_txn_nothing_failed() was set to true and we were unwinding writev with success to DHT and then catching the failure in post-op in the background. Fix: Don't wind the FOP phase if the write_subvol (which is populated with readable subvols obtained in pre-op cbk) does not have at least 1 good brick which was up when the transaction started. Note: This fix is not related to brick muliplexing. I ran the .t 10 times with this fix and brick-mux enabled without any failures. Change-Id: I915c9c366aa32cd342b1565827ca2d83cb02ae85 updates: bz#1577672 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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