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* cluster/afr: Check for lock on source & sink before doing data healkarthik-us2020-02-131-3/+19
| | | | | | | | | | | | | | | | Problem: In function afr_selfheal_data_block(), we only check for the lock count to be equal to or greater than the number of sinks. There can be a case where we have 2 source bricks and one sink and the locking is successful on only the source brick(s). In this case we continue with the healing on sink without having a lock, which is not correct. Fix: Check for lock on atleast source & one sink before starting the data heal. Change-Id: Iebcb57dcaa4b31831fedfee63d6ca16e9d6c8df8 fixes: bz#1688115 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* afr: log before attempting data self-heal.Ravishankar N2019-05-081-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I was working on a blog about troubleshooting AFR issues and I wanted to copy the messages logged by self-heal for my blog. I then realized that AFR-v2 is not logging *before* attempting data heal while it logs it for metadata and entry heals. I [MSGID: 108026] [afr-self-heal-entry.c:883:afr_selfheal_entry_do] 0-testvol-replicate-0: performing entry selfheal on d120c0cf-6e87-454b-965b-0d83a4c752bb I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal] 0-testvol-replicate-0: Completed entry selfheal on d120c0cf-6e87-454b-965b-0d83a4c752bb. sources=[0] 2 sinks=1 I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal] 0-testvol-replicate-0: Completed data selfheal on a9b5f183-21eb-4fb3-a342-287d3a7dddc5. sources=[0] 2 sinks=1 I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-testvol-replicate-0: performing metadata selfheal on a9b5f183-21eb-4fb3-a342-287d3a7dddc5 I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal] 0-testvol-replicate-0: Completed metadata selfheal on a9b5f183-21eb-4fb3-a342-287d3a7dddc5. sources=[0] 2 sinks=1 Adding it in this patch. Now there is a 'performing' and a corresponding 'Completed' message for every type of heal. fixes: bz#1707746 Change-Id: I0b954cf1e17b48280aefa76640b5119b92133d61 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* afr: add client-pid to all gf_event() callsRavishankar N2019-03-271-1/+3
| | | | | | | | | client-pid for glustershd is GF_CLIENT_PID_SELF_HEALD client-pid for glfsheal is GF_CLIENT_PID_GLFS_HEALD updates: bz#1689250 Change-Id: Ib3a863af160ff48c822a5e6b0c27c575c9887470 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* cluster/afr: Send truncate on arbiter brick from SHDkarthik-us2019-03-111-15/+13
| | | | | | | | | | | | | | | | | | | 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>
* Don't depend on string options to be valid alwaysPranith Kumar K2018-12-171-10/+3
| | | | | | updates bz#1650403 Change-Id: Ib5a11e691599ce4bd93c1ed5aca6060592893961 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* AFR xlator: use dict_{setn|getn|deln|get_int32n|set_int32n|set_strn}Yaniv Kaul2018-12-171-1/+1
| | | | | | | | | | | | | | | | | | | | In a previous patch (https://review.gluster.org/20769) we've added the key length to be passed to dict_* funcs, to remove the need to strlen() it. This patch moves some xlators to use it. - In some cases, moved strlen() of the key length outside of locks, which is usually a good thing. Please verify it's safe to do so. - In some cases, created a prefix for the keys, replacing something like "%d-%d" with a "%s" in snprintf(). Not sure it adds value, but improves readability. Please review carefully. Compile-tested only! Change-Id: I04f2a1eb2ecfc3283d849d150d10d088ae7aa7f1 updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* libglusterfs: Move devel headers under glusterfs directoryShyamsundarR2018-12-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | libglusterfs devel package headers are referenced in code using include semantics for a program, this while it works can be better especially when dealing with out of tree xlator builds or in general out of tree devel package usage. Towards this, the following changes are done, - moved all devel headers under a glusterfs directory - Included these headers using system header notation <> in all code outside of libglusterfs - Included these headers using own program notation "" within libglusterfs This change although big, is just moving around the headers and making it correct when including these headers from other sources. This helps us correctly include libglusterfs includes without namespace conflicts. Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b Updates: bz#1193929 Signed-off-by: ShyamsundarR <srangana@redhat.com>
* afr: prevent winding inodelks twice for arbiter volumesRavishankar N2018-10-101-1/+1
| | | | | | | | | | | | | | | | | | 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 N2018-09-211-1/+1
| | | | | | | | | | | | | | | | | 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>
* Land part 2 of clang-format changesGluster Ant2018-09-121-752/+717
| | | | | Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4 Signed-off-by: Nigel Babu <nigelb@redhat.com>
* afr: heal gfids when file is not present on all bricksRavishankar N2018-06-191-1/+7
| | | | | | | | | | | 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>
* cluster/afr: Make AFR eager-locking similar to ECPranith Kumar K2018-03-141-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: 1) Afr's eager-lock only works for data transactions. 2) When there are conflicting writes, write with conflicting region initiates unlock of eager-lock leading to extra pre-ops and post-ops on the file. When eager-lock goes off, it leads to extra fsyncs for random-write workload in afr. Solution (that is modeled after EC): In EC, when there is a conflicting write, it waits for the current write to complete before it winds the conflicted write. This leads to better utilization of network and disk, because we will not be doing extra xattrops and FSYNCs and inodelk/unlock. Moved fd based counters to inode based counters. I tried to model the solution based on EC's locking, but it is not similar to AFR because we had to keep backward compatibility. Lifecycle of lock: ================== First transaction is added to inode->owners list and an inodelk will be sent on the wire. All the next transactions will be put in inode->waiters list until the first transaction completes inodelk and [f]xattrop completely. Once [f]xattrop also completes, all the requests in the inode->waiters list are checked if it conflict with any of the existing locks which are in inode->owners list and if not are added to inode->owners list and resumed with doing transaction. When these transactions complete fop phase they will be moved to inode->post_op list and resume the transactions that were paused because of conflicts. Post-op and unlock will not be issued on the wire until that is the last transaction on that inode. Last transaction when it has to perform post-op can choose to sleep for deyed-post-op-secs value. During that time if any other transaction comes, it will wake up the sleeping transaction and takes over the ownership of the lock and the cycle continues. If the dealyed-post-op-secs expire, then the timer thread will wakeup the sleeping transaction and it will set lock->release to true and starts doing post-op and then unlock. During this time if any other transactions come, they will be put in inode->frozen list. Once the previous unlock comes it will move the frozen list to waiters list and moves the first element from this waiters-list to owners-list and attempts the lock and the cycle continues. This is the general idea. There is logic at the time of dealying and at the time of new transaction or in flush fop to wakeup existing sleeping transactions or choosing whether to delay a transaction etc, which is subjected to change based on future enhancements etc. Fixes: #418 BUG: 1549606 Change-Id: I88b570bbcf332a27c82d2767dfa82472f60055dc Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* posix/afr: handle backward compatibility for rchecksum fopRavishankar N2018-02-191-8/+21
| | | | | | | | | Added a volume option 'fips-mode-rchecksum' tied to op version 4. If not set, rchecksum fop will use MD5 instead of SHA256. updates: #230 Change-Id: Id8ea1303777e6450852c0bc25503cda341a6aec2 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* gfapi: return pre/post attributes from glfs_pread/pwriteKinglong Mee2018-02-121-3/+3
| | | | | | | | | | | | | | | As nfs-ganesha, a wcc data contains pre/post attributes is return in read/write rpc reply. nfs-ganesha get those attributes by two getattr between the real read/write right now. But, gluster has return pre/post attributes from glusterfsd, those attributes are skipped in syncop/gfapi, if gfapi return them, the upper user (nfs-ganesha) can use them directly without any duplicate getattr. Updates: #389 Change-Id: I7b643ae4241cfe2aeb17063de00192d81674024a Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
* afr: don't treat all cases all bricks being blamed as split-brainRavishankar N2018-02-011-3/+3
| | | | | | | | | | | | | | | | | | | | | | | 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 split-brain purely from the afr xattrs point of view i.e each brick is blamed by atleast one of the others. These scenarios are hit when there is frequent connect/disconnect of the client/shd to the bricks while I/O or heal are in progress. Fix: Instead of undoing the post-op, 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. Change-Id: I3d0224b883eb0945785ade0e9697a1c828aec0ae BUG: 1539358 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* rchecksum/fips: Replace MD5 usage to enable fips supportKotresh HR2017-12-211-2/+2
| | | | | | | | | rchecksum uses MD5 which is not fips compliant. Hence using sha256 for the same. Updates: #230 Change-Id: I7fad016fcc2a9900395d0da919cf5ba996ec5278 Signed-off-by: Kotresh HR <khiremat@redhat.com>
* cluster/afr: Fail open on split-brainPranith Kumar K2017-10-261-4/+54
| | | | | | | | | | | | | | | | | Problem: Append on a file with split-brain succeeds. Open is intercepted by open-behind, when write comes on the file, open-behind does open+write. Open succeeds because afr doesn't fail it. Then write succeeds because write-behind intercepts it. Flush is also intercepted by write-behind, so the application never gets to know that the write failed. Fix: Fail open on split-brain, so that when open-behind does open+write open fails which leads to write failure. Application will know about this failure. Change-Id: I4bff1c747c97bb2925d6987f4ced5f1ce75dbc15 BUG: 1294051 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* afr: auto-resolve split-brains for zero-byte filesRavishankar N2017-09-261-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | Problems: As described in BZ 1491670, renaming hardlinks can result in data/mdata split-brain of the DHT link-to files (T files) without any mismatch of data and metadata. As described in BZ 1486063, for a zero-byte file with only dirty bits set, arbiter brick will likely be chosen as the source brick. Fix: For zero byte files in split-brain, pick first brick as a) data source if file size is zero on all bricks. b) metadata source if metadata is the same on all bricks In arbiter case, if file size is zero on all bricks and there are no pending afr xattrs, pick 1st brick as data source. Change-Id: I0270a9a2f97c3b21087e280bb890159b43975e04 BUG: 1491670 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reported-by: Rahul Hinduja <rhinduja@redhat.com> Reported-by: Mabi <mabi@protonmail.ch>
* afr: mark non sources as sinks in metadata healRavishankar N2017-07-131-1/+1
| | | | | | | | | | | | | | | | | | Problem: In a 3 way replica, when the source brick does not have pending xattrs for the sinks, but the 2 sinks blame each other, metadata heal was not happpening because we were not setting all non-sources as sinks. Fix: Mark all non-sources as sinks, like it is done in data and entry heal. Change-Id: I534978940f5087302e307fcc810a48ffe898ce08 BUG: 1468279 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: https://review.gluster.org/17717 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* afr: restore atime/mtime for non-regular filesRavishankar N2017-03-061-51/+5
| | | | | | | | | | | | | | | | | | | AFR restores atime/mtime only as a part of data heal. For non-regular files (dirs, symlinks, char/block/socket files etc) which do not undergo data-heal, atime/mtime is not restored. This patch restores atime/mtime as a part of metadata heal for such files. Change-Id: Id8da885fc93fdf65c2f4bae2af3605b146ac1f16 BUG: 1429198 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: https://review.gluster.org/16844 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* afr/cluster: Restore data-self-heal-window optionRichard Wareing2017-02-081-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | Summary: - Fixes a bug where data-self-heal-window was ignored and instead hard-coded to 128k - Cherry-pick of D2752781 Test Plan: - Prove tests Reviewed By: sshreyas Signed-off-by: Shreyas Siravara <sshreyas@fb.com> Change-Id: Ie38456ce9ad90921f7456fe02aaace88393433a9 BUG: 1404424 Reviewed-on-release-3.8-fb: http://review.gluster.org/16083 Tested-by: Shreyas Siravara <sshreyas@fb.com> Reviewed-by: Kevin Vigor <kvigor@fb.com> Reviewed-on: https://review.gluster.org/16123 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* afr: allow I/O when favorite-child-policy is enabledRavishankar N2016-11-271-6/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Currently, I/O on a split-brained file fails even when the favorite-child-policy is set until the self-heal is complete. Fix: If a valid 'source' is found using the set favorite-child-policy, inspect and reset the afr pending xattrs on the 'sinks' (inside appropriate locks), refresh the inode and then proceed with the read or write transaction. The resetting itself happens in the self-heal code and hence can also happen in the client side background-heal or by the shd's index-heal in addition to the txn code path explained above. When it happens in via heal, we also add checks in undo-pending to not reset the sink xattrs again. Change-Id: Ic8c1317720cb26bd114b6fe6af4e58c73b864626 BUG: 1386188 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reported-by: Simon Turcotte-Langevin <simon.turcotte-langevin@ubisoft.com> Reviewed-on: http://review.gluster.org/15673 Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* afr: Modifications to afr eventsRavishankar N2016-09-231-1/+5
| | | | | | | | | | | | | | Modified afr event message to add a 'type' key as detailed in the BZ. Also added events for data and metadata split-brain. Change-Id: I8156674b4b6a501499fc10fd68e05115fdaef3e4 BUG: 1378072 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/15550 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* afr: some coverity fixesRavishankar N2016-07-261-3/+9
| | | | | | | | | | | | | | | Thanks to Krutika for a cleaner way to track inode refs in afr_set_split_brain_choice(). Change-Id: I2d968d05b815ad764b7e3f8aa9ad95a792b3c1df BUG: 1355604 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/14895 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* afr: Automagic unsplit-brain by [ctime|mtime|size|majority]Ravishankar N2016-05-251-3/+5
| | | | | | | | | | | | | | | | | | | | | Introduce cluster.favorite-child-policy which when enabled with [ctime|mtime|size|majority], automatically heals files that are in split-brian. The majority policy will not pick a source if there is no majority. The other three policies pick the first brick with a valid reply and non-zero ctime/mtime/size as source. Change-Id: I3c099a0404082213860f74f2c9b4d207cfaedb76 BUG: 1328224 Original-author: Richard Wareing <rwareing@fb.com> Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/14026 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anuradha Talur <atalur@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/afr: Do not fsync when durability is offPranith Kumar K2016-04-271-0/+3
| | | | | | | | | | | | BUG: 1329501 Change-Id: Id402c20f2fa19b22bc402295e03e7a0ea96b0c40 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/14048 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/afr: Fix inode-leak in data self-healPranith Kumar K2016-04-241-1/+1
| | | | | | | | | | | | | | | Thanks to Olia-Kremmyda for finding the bug on github review, https://github.com/gluster/glusterfs/commit/b8106d1127f034ffa88b5dd322c23a10e023b9b6 Change-Id: Ib8640ed0c331a635971d5d12052f0959c24f76a2 BUG: 1329773 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/14052 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
* cluster/afr: Fix partial heals in 3-way replicationPranith Kumar K2016-04-151-4/+6
| | | | | | | | | | | | | | | | | | | | | | Problem: When there are 2 sources and one sink and if two self-heal daemons try to acquire locks at the same time, there is a chance that it gets a lock on one source and sink leading partial to heal. This will need one more heal from the remaining source to sink for the complete self-heal. This is not optimal. Fix: Upgrade non-blocking locks to blocking lock on all the subvolumes, if the number of locks acquired is majority and there were eagains. BUG: 1318751 Change-Id: Iae10b8d3402756c4164b98cc49876056ff7a61e5 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/13766 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com>
* cluster/afr: Choose local child as source if possiblePranith Kumar K2016-03-111-9/+3
| | | | | | | | | | | | | | | | | It is better to choose local brick as source if possible to prevent over the wire read thus saving on bandwidth. Also changed code to not attempt data-heal if 'source' is selected as arbiter. Change-Id: I9a328d0198422280b13a30ab99545370a301dfea BUG: 1314150 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/13585 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Krutika Dhananjay <kdhananj@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/afr: Fix heal-info slow response while IO is in progressKrutika Dhananjay2016-02-031-18/+19
| | | | | | | | | | | | | | | | | | Now heal-info does an open() on the file being examined so that the client at some point sees open-fd count being > 1 and releases the eager-lock so that heal-info doesn't remain blocked forever until IO completes. Change-Id: Icc478098e2bc7234408728b54d8185102b3540dc BUG: 1297695 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/13326 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
* afr: skip healing data blocks for arbiterRavishankar N2016-01-181-9/+49
| | | | | | | | | | | | | | | | | | | 1 ....but still do other parts of data-self-heal like restoring the time and undo pending xattrs. 2. Perform undo_pending inside inodelks. 3. If arbiter is the only sink, do these other parts of data-self-heal inside a single lock-unlock sequence. Change-Id: I64c9d5b594375f852bfb73dee02c66a9a67a7176 BUG: 1286017 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/12777 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* heal : Changed heal info to process all indices directoriesAnuradha Talur2015-12-021-3/+5
| | | | | | | | | | Change-Id: Ida863844e14309b6526c1b8434273fbf05c410d2 BUG: 1250803 Signed-off-by: Anuradha Talur <atalur@redhat.com> Reviewed-on: http://review.gluster.org/12658 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: change data self-heal size check for arbiterPranith Kumar K2015-11-261-0/+4
| | | | | | | | | | | | | Size mismatch should consider that arbiter brick will have zero size file to prevent data self-heal to spuriously trigger/assuming need of self-heals. Change-Id: I179775d604236b9c8abfa360657abbb36abae829 BUG: 1285634 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/12755 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
* afr: Drop compatibility lock for data self-healRavishankar N2015-11-181-18/+0
| | | | | | | | | | | | | | | | | | | In glusterfs 3.4 and older, AFR did not take locks in self-heal domain during data self-heal. So this compat lock in data domain was added to prevent older clients from trying to heal a file while an existing self-heal was going on by a newer client. But the side effect was that all appending writes (which take full locks in data domain) from mounts would be stalled until self-heal was complete. Since glusterfs 3.4 is not supported anymore, remove the compat lock. Change-Id: I31c8e4d7f3364f769a14eec295154e3c40d9f78e BUG: 1283032 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/12602 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: disable self-heal lock compatibility for arbiter volumesPranith Kumar K2015-10-291-8/+12
| | | | | | | | | | | | | | | | | | | | Problem: afrv2 takes locks from infinity-2 to infinity-1 to be compatible with <=3.5.x clients. For arbiter volumes this leads to problems as the I/O takes full file locks. Solution: Don't be compatible with <=3.5.x clients on arbiter volumes as arbiter volumes are introduced in 3.7 Change-Id: I48d6aab2000cab29c0c4acbf0ad356a3fa9e7bab BUG: 1275247 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/12426 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
* afr: write zeros to sink for non-sparse filesRavishankar N2015-10-281-16/+41
| | | | | | | | | | | | | | | | | Problem: If a file is created with zeroes ('dd', 'fallocate' etc.) when a brick is down, the self-heal does not write the zeroes to the sink after it comes up. Consequenty, there is a mismatch in disk-usage amongst the bricks of the replica. Fix: If we definitely know that the file is not sparse, then write the zeroes to the sink even if the checksums match. Change-Id: Ic739b3da5dbf47d99801c0e1743bb13aeb3af864 BUG: 1272460 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/12371 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Handle stack reset failuresPranith Kumar K2015-10-071-0/+4
| | | | | | | | | | | | | | | When all the bricks go down in the middle of the self-heal, in AFR_STACK_RESET afr_local_init will fail because all the bricks are down. So local will remain NULL for the frame. This leads to crashes as this failure is not handled in both entry and data self-heals. Change-Id: I71a02f161f2c4dbfdc8bb7f2a6f32807191ed253 BUG: 1269470 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/12309 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* afr: Do not wind statfs to arbiter brickRavishankar N2015-08-071-1/+1
| | | | | | | | | | | | | | | | | | Problem: AFR serves statfs from the brick having the least free space available. Since the size to be allocated to the arbiter brick in a 3 way replica is supposed to be considerably lesser than the other 2 bricks, statfs will be served from this brick which is incorrect. Fix: Don't serve statfs from the arbiter brick. Change-Id: I5af098b9c50626f52cf3d7dbb060bf754c797f05 BUG: 1251346 Reported-by: Fredrik Brandt <fredrikb@denlillaplaneten.se> Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/11857 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
* afr: Porting messages to new logging frameworkarao2015-06-271-9/+13
| | | | | | | | | | | | | updated Change-Id: I94ac7b2cb0d43a82cf0eeee21407cff9b575c458 BUG: 1194640 Signed-off-by: arao <arao@redhat.com> Signed-off-by: Mohamed Ashiq <mliyazud@redhat.com> Reviewed-on: http://review.gluster.org/9897 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/afr : truncate all sinks filesAnuradha2015-06-261-14/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem : During data self-heal of sparse files, sparseness of files is lost. Cause : Earlier, only files with larger ia_size in sinks were being truncated to ia_size of source. This caused checksum mismatch of sparse blocks when ia_size of files in sinks were lesser than ia_size of source file. Leading to unnecessary healing of sparse blocks. As a result of which sparseness of files was lost. Solution : truncate files in all the sinks irrespective of their size with respect to the source file. After this change, checksum won't mismatch for sparse blocks and heal won't be triggered. As a result, sparseness of the files will be preserved. Other fixes in this patch : 1) in afr_does_size_mismatch(), check for mismatch only in sources. Previously, the check was being done for all children in a replica. 2) in __afr_selfheal_data_checksums_match(), check checksum mismatch only for children with valid responses. Change-Id: Ifcdb1cdc9b16c4a8a7867aecf9fa94b66e5301c2 BUG: 1232238 Signed-off-by: Anuradha Talur <atalur@redhat.com> Reviewed-on: http://review.gluster.org/11252 Reviewed-by: Prasanna Kumar Kalever Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
* build: do not #include "config.h" in each fileNiels de Vos2015-05-291-5/+0
| | | | | | | | | | | | | | | | | | Instead of including config.h in each file, and have the additional config.h included from the compiler commandline (-include option). When a .c file tests for a certain #define, and config.h was not included, incorrect assumtions were made. With this change, it can not happen again. BUG: 1222319 Change-Id: I4f9097b8740b81ecfe8b218d52ca50361f74cb64 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/10808 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* afr: add arbitration supportRavishankar N2015-05-051-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | Add logic in afr to work in conjunction with the arbiter xlator when a replica 3 arbiter volume is created. More specifically, this patch: * Enables full locks for afr data transaction for such volumes. * Removes the upfront marking of pending xattrs at the time of pre-op and defer it to post-op. (This is an arbiter independent change and is made for all afr transactions.) * After pre-op stage, check if we can proceed with the fop stage without ending up in split-brain by examining the changelog xattrs. * Unwinds the fop with failure if only one source was available at the time of pre-op and the fop happened to fail on particular source brick. * Skips data self-heal if arbiter brick is the only source available. * Adds the arbiter-count option to the shd graph. This patch is a part of the arbiter logic implementation for 3 way AFR details of which can be found at http://review.gluster.org/#/c/9656/ Change-Id: I9603db9d04de5626eb2f4d8d959ef5b46113561d BUG: 1199985 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/10258 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* libglusterfs/syncop: Add xdata to all syncop callsRaghavendra Talur2015-04-081-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for xdata in both the request and response path of syncops. Few calls like lookup already had the support; have renamed variables in few places to maintain uniformity. xdata passed downwards is known as xdata_in and xdata passed upwards is known as xdata_out. There is an old patch by Jeff Darcy at http://review.gluster.org/#/c/8769/3 which does the same for some selected calls. It also brings in xdata support at gfapi level. xdata support at gfapi level would be introduced in subsequent patches. Change-Id: I340e94ebaf2a38e160e65bc30732e8fe1c532dcc BUG: 1158621 Signed-off-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-on: http://review.gluster.org/9859 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Avoid conflict between contrib/uuid and system uuidEmmanuel Dreyfus2015-04-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glusterfs relies on Linux uuid implementation, which API is incompatible with most other systems's uuid. As a result, libglusterfs has to embed contrib/uuid, which is the Linux implementation, on non Linux systems. This implementation is incompatible with systtem's built in, but the symbols have the same names. Usually this is not a problem because when we link with -lglusterfs, libc's symbols are trumped. However there is a problem when a program not linked with -lglusterfs will dlopen() glusterfs component. In such a case, libc's uuid implementation is already loaded in the calling program, and it will be used instead of libglusterfs's implementation, causing crashes. A possible workaround is to use pre-load libglusterfs in the calling program (using LD_PRELOAD on NetBSD for instance), but such a mechanism is not portable, nor is it flexible. A much better approach is to rename libglusterfs's uuid_* functions to gf_uuid_* to avoid any possible conflict. This is what this change attempts. BUG: 1206587 Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/10017 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* cluster/afr: Do not increment healed_count if no healing was performedKrutika Dhananjay2015-03-041-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | PROBLEM: When file modifications are happening while index heal is launched, index healer could pick up entries which appeared in indices/xattrop transiently during the course of the operations on the mount point, and do not really need any heal. This will cause index healer to keep doing index-heal in a loop as long as it finds this entry, by believing that it did successfully heal some gfids even when it didn't. FIX: afr_selfheal() now returns a 1 to indicate that it did not (need to) heal a given gfid. afr_shd_selfheal() will not increment healed_count whenever afr_selfheal() returns a 1. Change-Id: I0d97e11392a032a852e8c6508f691300ef0e5b98 BUG: 1194305 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/9713 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* afr: Don't write to sparse regions of sink.Ravishankar N2015-01-301-2/+39
| | | | | | | | | | | | | | | | | | | | Problem: When data-self-heal-algorithm is set to 'full', shd just reads from source and writes to sink. If source file happened to be sparse (VM workloads), we end up actually writing 0s to the corresponding regions of the sink causing it to lose its sparseness. Fix: If the source file is sparse, and the data read from source and sink are both zeros for that range, skip writing that range to the sink. Change-Id: I787b06a553803247f43a40c00139cb483a22f9ca BUG: 1166020 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/9480 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: split-brain resolution CLIRavishankar N2015-01-151-41/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the AFR heal command to include automated split-brain resolution. This patch [3/3] is the final patch for afr automated split-brain resolution implementation. "gluster volume heal <VOLNAME> [full | statistics [heal-count [replica <HOSTNAME:BRICKNAME>]] |info [healed | heal-failed | split-brain]| split-brain {bigger-file <FILE> |source-brick <HOSTNAME:BRICKNAME> [<FILE>]}]" The new additions being: 1.gluster volume heal <VOLNAME> split-brain bigger-file <FILE> Locates the replica containing the FILE, selects bigger-file as source and completes heal. 2.gluster volume heal <VOLNAME> split-brain source-brick <HOSTNAME:BRICKNAME> <FILE> Selects <FILE> present in <HOSTNAME:BRICKNAME> as source and completes heal. 3.gluster volume heal <VOLNAME> split-brain <HOSTNAME:BRICKNAME> Selects all split-brained files in <HOSTNAME:BRICKNAME> as source and completes heal. Note: <FILE> can be either the full file name as seen from the root of the volume (or) the gfid-string representation of the file, which sometimes gets displayed in the heal info command's output. Entry/gfid split-brain resolution is not supported. Example can be found in the test case. Change-Id: I4649733922d406f14f28ee9033a5cb627b9538b3 BUG: 1136769 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/9377 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>
* afr: Fixes to commit 85427a23c238499137cbfaafdb7b6ad27f67506aAnuradha2015-01-011-0/+3
| | | | | | | | | | | | | * Fixed a dict leak * Re-added 'return on failure' check Change-Id: I07edd03e4608fd2b7c4a91019a0e43033e6e78b2 BUG: 1163804 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/9368 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 : Change in volume heal info commandAnuradha2014-12-231-11/+10
| | | | | | | | | | | | | | | | gluster volume heal <volname> info command will now also display if the files listed (in the output of the command) are in split-brain or possibly being healed. This patch also fixes build warning that occurs. Change-Id: I1fc92e62137f23b2b9ddf6e05819cee6230741d1 BUG: 1163804 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/9119 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: Add afr-v1 xattr compatibilityPranith Kumar K2014-10-011-23/+164
| | | | | | | | | | | | | 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>
generated by cgit (git 2.34.1) at 2024-04-25 12:03:43 +0000