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* glusterd: Fix spurious volume delete failurev3.6.3beta1Emmanuel Dreyfus2015-02-111-1/+6
| | | | | | | | | | | | | | | | | | | If volume uses quota, volume delete operation should unmount the auxiliary quota mount usin glusterd_remove_auxiliary_mount(). This may fail with EBADF is the mount is already gone. In that situation, ignore the error so that volume delete succeeds. This fixes a spurious failure on NetBSD in tests/basic/quota.t 74-75 Backport of I69325f71fc2c8af254db46f696c8669a4e6bd7e4 BUG: 1138897 Change-Id: If0d382d44a956bb9fd8c41299f82affdf2ee0618 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/9484 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* storage/posix: Don't try to set gfid in case of INTERNAL-mknodPranith Kumar K2015-02-111-7/+12
| | | | | | | | | | | Backport of http://review.gluster.org/9446 BUG: 1184527 Change-Id: I3e31b0672704cae09c5097f84229b8264a6c0fbe Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9472 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* storage/posix: Set gfid after all xattrs, uid/gid are setPranith Kumar K2015-02-111-32/+32
| | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.com/9434 Problem: When a new entry is created gfid is set even before uid/gid, xattrs are set on the entry. This can lead to dht/afr healing that file/dir with the uid/gid it sees just after the gfid is set, i.e. root/root. Sometimes setattr/setxattr are failing on that file/dir. Fix: Set gfid of the file/directory only after uid/gid, xattrs are setup properly. Readdirp, lookup either wait for the gfid to be assigned to the entry or not update the in-memory inode ctx in posix-acl xlator which was producing lot EACCESS/EPERM to the application or dht/afr self-heals. BUG: 1184527 Change-Id: Ia6dfd492e03db2275665e7f63260611b310e38e6 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9471 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Don't use inodelk on getxattr when clearing locksXavier Hernandez2015-02-112-9/+12
| | | | | | | | | | | | | | | | | | | | | | | When command 'clear-locks' from cli is executed, a getxattr request is received by ec. This request was handled as usual, first locking the inode. Once this request was processed by the bricks, all locks were removed, including the lock used by ec. When ec tried to unlock the previously acquired lock (which was already released), caused a crash in glusterfsd. This fix executes the getxattr request without any lock acquired for the clear-locks command. This is a backport of http://review.gluster.org/9440/ Change-Id: I77e550d13c4673d2468a1e13fe6e2fed20e233c6 BUG: 1181977 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9444 Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Fix posix compliance failuresXavier Hernandez2015-02-116-87/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch solves some problems that caused dispersed volumes to not pass posix smoke tests: * Problems in open/create with O_WRONLY Opening files with -w- permissions using O_WRONLY returned an EACCES error because internally O_WRONLY was replaced with O_RDWR. * Problems with entrylk on renames. When source and destination were the same, ec tried to acquire the same entrylk twice, causing a deadlock. * Overwrite of a variable when reordering locks. On a rename, if the second lock needed to be placed at the beggining of the list, the 'lock' variable was overwritten and later its timer was cancelled, cancelling the incorrect one. * Handle O_TRUNC in open. When O_TRUNC was received in an open call, it was blindly propagated to child subvolumes. This caused a discrepancy between real file size and the size stored into trusted.ec.size xattr. This has been solved by removing O_TRUNC from open and later calling ftruncate. This is a backport of http://review.gluster.org/9420 Change-Id: I20c3d6e1c11be314be86879be54b728e01013798 BUG: 1159471 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9501 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* afr : Fixes to 59ba78ae1461651e290ce72013786d828545d4c1Anuradha2015-02-111-0/+4
| | | | | | | | | | | | | | | | | | | A bug was found while reviewing http://review.gluster.org/9377/ (inode was not being unreffed after use). It is fixed on master as a part of the following change - http://review.gluster.org/#/c/9377/7/xlators/cluster/afr/src/afr-common.c . Fixing the same issue in 3.6 with this patch. Change-Id: Ibdc4be49d88613ccb1f80349eb4d368710c0c24b BUG: 1173528 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/9450 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/afr: When parent and entry read subvols are different, set ↵Krutika Dhananjay2015-02-112-23/+94
| | | | | | | | | | | | | | | | | entry->inode to NULL Backport of: http://review.gluster.org/#/c/9477 That way a lookup would be forced on the entry, and its attributes will always be selected from its read subvol. Change-Id: Iaba25e2cd5f83e983fc8b1a1f48da3850808e6b8 BUG: 1186119 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/9562 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Fix failures with missing filesXavier Hernandez2015-02-112-102/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When a file does not exist on a brick but it does on others, there could be problems trying to access it because there was some loc_t structures with null 'pargfid' but 'name' was set. This forced inode resolution based on <pargfid>/name instead of <gfid> which would be the correct one. To solve this problem, 'name' is always set to NULL when 'pargfid' is not present. Another problem was caused by an incorrect management of errors while doing incremental locking. The only allowed error during an incremental locking was ENOTCONN, but missing files on a brick can be returned as ESTALE. This caused an EIO on the operation. This patch doesn't care of errors during an incremental locking. At the end of the operation it will check if there are enough successfully locked bricks to continue or not. This is a backport of http://review.gluster.org/9407/ Change-Id: I9360ebf8d819d219cea2d173c09bd37679a6f15a BUG: 1183716 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9560 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/ec: Do not modify quota, selinux xattrs in healingPranith Kumar K2015-02-041-14/+38
| | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9401 Problem: EC heal tries to heal quota-size, selinux xattrs as well. quota-size is private to the brick but since quotad accesses them using the standard interface as well, they can not be filtered in the fops. Fix: Ignore QUOTA_SIZE_KEY and SELINUX xattrs during heal. BUG: 1178590 Change-Id: Id569a49ef996e5507f4474c99b6cdc22781ad82d Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9454 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/ec: Handle internal xattr get/setPranith Kumar K2015-02-046-115/+188
| | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9385 Problem: Internal xattrs of EC like trusted.ec.size/config/version can be modified by users and that can lead to misbehavior in EC. Fix: Don't let the user modify the xattrs. Hide these xattrs in getfattr outputs. BUG: 1182490 Change-Id: Ie32ebb95ee67cabbb9488951097a517172b45bcf Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9455 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* afr: Don't write to sparse regions of sink.Ravishankar N2015-02-031-2/+39
| | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9480 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: Id23d953fe2c8c64cde5ce3530b52ef91a7583891 BUG: 1187547 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/9515 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* features/marker: do not call inode_path on the inode not yet linkedvmallika2015-02-031-12/+24
| | | | | | | | | | | | | | | | | | | | | | This is a backport of http://review.gluster.org/#/c/9320 > * in readdirp callbak marker is calling inode_path on the inodes that > are not yet linked to the inode table. > > Change-Id: I7f5db29c6a7e778272044f60f8e73c60574df3a9 > BUG: 1176393 > Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> > Reviewed-on: http://review.gluster.org/9320 > Tested-by: Gluster Build System <jenkins@build.gluster.com> > Reviewed-by: Raghavendra G <rgowdapp@redhat.com> > Tested-by: Raghavendra G <rgowdapp@redhat.com> Change-Id: Ibcfabe479ae6fd07a94ce80532fe1971d242974d BUG: 1174170 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9509 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* performance/md-cache: Initialise local->loc before winding nameless lookupKrutika Dhananjay2015-02-031-3/+3
| | | | | | | | | | | | Backport of: http://review.gluster.org/#/c/9476 Change-Id: I0611da7ae271baff7fd14d4a266a2c0e5e4a294a BUG: 1186119 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/9491 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/dht: Fix incorrect updates to parent timesKrutika Dhananjay2015-02-031-6/+5
| | | | | | | | | | | | | | | | | | | | | | Backport of: http://review.gluster.org/9457 In directory write FOPs, as far as updates to timestamps associated with parent by DHT is concerned, there are three possibilities: a) time (in sec) gotten from child of DHT < time (in sec) in inode ctx b) time (in sec) gotten from child of DHT = time (in sec) in inode ctx c) time (in sec) gotten from child of DHT > time (in sec) in inode ctx In case (c), for time in nsecs, it is the value returned by DHT's child that must be selected. But what DHT_UPDATE_TIME ends up doing is to choose the maximum of (time in nsec gotten from DHT's child, time in nsec in inode ctx). Change-Id: I1046bb7147ab48eca5c477be03ef2d4630e7752d BUG: 1186119 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/9490 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* Cluster/DHT : Fixed crash due to null derefv3.6.2Nithya Balachandran2015-01-211-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | A lookup on a linkto file whose trusted.glusterfs.dht.linkto xattr points to a subvol that is not part of the volume can cause the brick process to segfault due to a null dereference. Modified to check for a non-null value before attempting to access the variable. > Change-Id: Ie8f9df058f842cfc0c2b52a8f147e557677386fa > BUG: 1159571 > Signed-off-by: Nithya Balachandran <nbalacha@redhat.com> > Reviewed-on: http://review.gluster.org/9034 > Tested-by: Gluster Build System <jenkins@build.gluster.com> > Reviewed-by: venkatesh somyajulu <vsomyaju@redhat.com> > Reviewed-by: Vijay Bellur <vbellur@redhat.com> > Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Change-Id: I53b086289d2386d269648653629a0750baae07a4 BUG: 1184191 Reviewed-on: http://review.gluster.org/9467 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* mgmt/glusterd: do not restart nfs server when snapshot is deactivatedv3.6.2beta2Raghavendra Bhat2015-01-091-0/+3
| | | | | | | | | | | | | | | | | > Change-Id: Ie5eaa2beb4446640b22873f91e17da90d1cd8fad > BUG: 1174625 > Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> > Reviewed-on: http://review.gluster.org/9280 > Tested-by: Gluster Build System <jenkins@build.gluster.com> > Reviewed-by: Kaushal M <kaushal@redhat.com> > Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Change-Id: Ic5049f919fb444b45b3372a3b486183ed46d60f8 BUG: 1180404 Reviewed-on: http://review.gluster.org/9425 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* avoid memory leaks in snapview-serverRaghavendra Bhat2015-01-091-0/+3
| | | | | | | | | | | | | | | | | | | | | * snapview-server in readdirp, creates the inode for entries with names "." and ".." for each readdirp operation without creating dentries leading to memleak. It should have avoided creation of inodes for those entries > Change-Id: I3b2025fd10872fcc3303d0becec764ffd4e37601 > BUG: 1179663 > Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> > Reviewed-on: http://review.gluster.org/9404 > Tested-by: Gluster Build System <jenkins@build.gluster.com> > Reviewed-by: Vijay Bellur <vbellur@redhat.com> > Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Change-Id: Iea6c53c8db8b82189ef6c4a84dd3814349628ca3 BUG: 1180411 Reviewed-on: http://review.gluster.org/9426 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Sachin Pandit <spandit@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* features/uss: Perform NULL check on @name in svc_getxattrKrutika Dhananjay2015-01-081-1/+4
| | | | | | | | | | | | | | | | | | Backport of: http://review.gluster.org/9378 LISTXATTR fop is internally converted into a GETXATTR with the "name" parameter set to NULL. In svc_getxattr(), a listxattr was causing a crash because of a NULL pointer dereference on @name. FIX: Add the necessary NULL check. Change-Id: Ifb4ca2a45ecc78c384e92822403eaf2f1b573798 BUG: 1180070 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/9417 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* performance/readdir-ahead: indicate EOF for readdirp.Raghavendra Bhat2015-01-081-2/+9
| | | | | | | | | | | | | | | | | | | | posix xlator sends op_errno as ENOENT and op_ret as 0, to indicate readdir has been completed. readdir-ahead should send that op_errno that it has saved in the fd context, when it serves the readdir requests. Otherwise some xlators sitting above performance xlators such as snapview-client, which checks for end of readdir operation by checking op_ret to 0 and op_errno to ENOENT will not be able to identify end of readdir. Change-Id: Ib0835136c61cb1e0d7df933226c479c7db703a71 BUG: 1175753 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/9283 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9348
* uss/gluster: In SVS, check for entry-point in dict only if inode_ctx is not ↵vmallika2015-01-081-17/+19
| | | | | | | | | | | | | | | | | available. Change-Id: I990487003b712bf4aed8f54291417965f301655e BUG: 1175752 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9265 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Sachin Pandit <spandit@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9347 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* features/snapview-client: handle fsync fop.Raghavendra Bhat2015-01-081-0/+45
| | | | | | | | | | | | Change-Id: Idaf46bd7497266af837789b09a0c62698f56ee4e BUG: 1175749 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/9258 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Sachin Pandit <spandit@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9345
* features/snapview-client: handle readdir requests differently for samba.Raghavendra Bhat2015-01-085-9/+578
| | | | | | | | | | | | | * For samba export, the entry point is also added to the readdir response. Change-Id: I825c017e0f16db1f1890bb56e086f36e6558a1c2 BUG: 1175742 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/9218 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9344
* uss/gluster: Send success on parent lookup of entry-point.vmallika2015-01-082-14/+51
| | | | | | | | | | | | | | | | | | | | When a lookup sent to snapview-server for entry-point directory protocol server first tries to resolve gfid of a parent directory. looking up the parent gfid from a latest snapshot can fail if the volume is a restored volume. As this gfid is already looked-up by snapview-client, we can return success for the parent gfid. Change-Id: Ic9b20561ef79b93032f07c3a81eae54a94e1747b BUG: 1175744 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9229 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9342
* uss: CIFS gives error while accessing .snaps directory.Rajesh Joseph2015-01-084-24/+70
| | | | | | | | | | | | | | | | | | | | | | | CIFS sends getxattr call while accessing .snaps directory. snapview server should return ENODATA if getxattr is called on .snaps folder. Also flush on .snaps folder should be handled. Windows client sends and getxattr call on the parent folder of .snaps with a special key to get the real filename of a file. This is used by samba to do case insensitive check of files. Fixed few FreeBSD compilation error. bug: 1175742 Change-Id: I74d5cb4419568c8ed8709ba6d1ddff0e41392204 Signed-off-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-on: http://review.gluster.org/9211 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9341
* USS : fill proper uid and gid during a access call from nfs.Sachin Pandit2015-01-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | Problem : when an user tries to access a file/folder for which he does not have a proper permission required then fuse gives out a proper error "Permission denied", but nfs does not give out that error, rather he can access the file/folder. The reason being uid and gid of call frame stack takes a default value of uid and gid which point to root permission. Solution : Set a proper uid and gid during a access call from nfs Change-Id: Ib060706fde66ec7e60f242fab1f3e59122ed2245 BUG: 1175739 Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9194 Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9340 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* glusterd/uss: Create rebalance volfile.Avra Sengupta2015-01-085-21/+117
| | | | | | | | | | | | | | | | | | | | | | | Create a new rebalance volfile, which will not contain snap-view client translators, irrespective of the status of USS. This volfile, will be created and regenerated everytime the fuse-volfile is generated, and will be consumed by the rebalance process. Change-Id: I514a8e88d06c0b8fb6949c3a3e6dc4dbe55e38af BUG: 1175758 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/9190 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9339 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* glusterd/uss: if snapd is not running, return success from ↵Atin Mukherjee2015-01-081-0/+3
| | | | | | | | | | | | | | | | | | | | | glusterd_handle_snapd_option. glusterd_handle_snapd_option was returning failure if snapd is not running because of which gluster commands were failing. Change-Id: I22286f4ecf28b57dfb6fb8ceb52ca8bdc66aec5d BUG: 1175765 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/9206 Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9311 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* afr : glfs-heal implementationAnuradha2015-01-0610-38/+400
| | | | | | | | | | | | | Backport of http://review.gluster.org/6529 and http://review.gluster.org/9119 Change-Id: Ie420efcb399b5119c61f448b421979c228b27b15 BUG: 1173528 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/9335 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* rdma: Client volfile name change for supporting rdmaAnoop C S2015-01-062-4/+22
| | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9146 For rdma only volumes, daemons like snapd, glustershd etc make use of tcp transport for their operations. This patch will introduce the support of rdma by default for those daemons in rdma only volumes. In order to accomodate this change we rename the tcp client volfile labels from <volname>-fuse.vol to <volname>.tcp-fuse.vol Change-Id: Id5e5db0680a07fa6b6d003bad45748464cd7658e BUG: 1166515 Signed-off-by: Anoop C S <achiraya@redhat.com> Reviewed-on: http://review.gluster.org/9146 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/9183 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* rdma: Wrong volfile fetch on fuse mounting tcp,rdma volume via rdmaAnoop C S2015-01-064-82/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/8498 As of now for both tcp only volumes and rdma only volumes, volfile names are in the format <volname>-fuse.vol. This patch will change the client volfile namings as shown below. * TCP mounts always use <volname>-fuse.vol * RDMA mounts always use <volname>.rdma-fuse.vol Following the above naming convention, for tcp,rdma volumes both volfiles will be present under /var/lib/glusterd/vols/<volname>/ such that rdma only volume can be mounted as mount -t glusterfs -o transport=rdma <server/ip>:/<volname> <mount-point> OR mount -t glusterfs <server/ip>:/<volname>.rdma <mount-point> The above command format can also be used to fuse mount a tcp,rdma volume via rdma transport. When we try to fuse mount a tcp,rdma volume with transport-type as rdma it silently mounts via tcp. This change will also make sure that it fetches the correct volfile based on the transport-type specified from client side. Change-Id: Id8b74c1c3e1e7fd323463061f8b13dd623fa6876 BUG: 1166515 Signed-off-by: Anoop C S <achiraya@redhat.com> Reviewed-on: http://review.gluster.org/8498 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/9182 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* mount:Handle -o transport option in mount.glusterfsMohammed Rafi KC2015-01-061-13/+5
| | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/#/c/9147/ In current scenario ,when tcp transport type(default) specified for mounting,glusterfs mount script won't append '.tcp' to volume name.But to accommodate the change in http://review.gluster.org/#/c/9146/, we need to append ".tcp" with volfile-id if '-o transport=tcp' is given. Change-Id: I5444ac38846192de4af02535435b86bb00422aab BUG: 1166515 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/9179 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* rdma: client connection establishment takes more timeMohammed Rafi KC2015-01-065-36/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/8934 For rdma type only volume client connection establishment with server takes more than three seconds. Because for tcp,rdma type volume, will have 2 ports one for tcp and one for rdma, tcp port is stored with brickname and rdma port is stored as "brickname.rdma" during pamap_sighin. During the handshake when trying to get the brick port for rdma clients, since we are not aware of server transport type, we will append '.rdma' with brick name. So for tcp,rdma volume there will be an entry with '.rdma', but it will fail for rdma type only volume. So we will try again, this time without appending '.rdma' using a flag variable need_different_port, and it will succeed, but the reconnection happens only after 3 seconds. In this patch for rdma only type volume we will append '.rdma' during the pmap_signin. So during the handshake we will get the correct port for first try itself. Since we don't need to retry , we can remove the need_different_port flag variable. Change-Id: I82a8a27f0e65a2e287f321e5e8292d86c6baf5b4 BUG: 1166515 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/8934 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/9177 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* rdma:rdma fuse mount hangs for tcp,rdma volumes if brick is down.Mohammed Rafi KC2015-01-062-7/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/8762 When we try to mount a tcp,rdma volume as rdma transport using FUSE protocol, then mount will hang if the brick is down. When we kill a process, signal will be received in glusterfsd process and it will call pmap_signout with port listening on tcp only. In case of the tcp,rdma there will be two ports, and port which is listening for rdma will not called for sign out. So the mount process will try to connect to a port which is not open and it will keep trying to connect. This patch will call pmap_signout for rdma port also, So when mount tries to get the brick port,it will fail. Change-Id: I73f90d7340afa3b0b1278924206f1488e4094a62 BUG: 1166515 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/8762 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/9176 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* rdma :mount fails for nfs protocol in rdma volumesJiffin Tony Thottan2015-01-067-25/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we mount rdma only volume or tcp,rdma volume using newly peer probed IP's(nfs-server on new nodes) through nfs protocol, mount fails for rdma only volume and mount happens with help of tcp protocol in the case of tcp,rdma volumes. That is for newly added servers will always get transport type as "socket". This is due to nfs_transport_type is exported correctly and imported wrongly. This can be verified by the following , * Create a rdma only volume or tcp,rdma volume * Add a new server into the trusted pool. * Checkout the client transport type specified nfs-server volgraph.It will be always tcp(socket type) instead of rdma. * And also for rdma only volume in the nfs log, we can see 'connection refused' message for every reconnect between nfs server and glusterfsd. Backport of http://review.gluster.org/8975 cherry picked from commit f380e2029d608f97e3ba9a728605e1d798b09e8d >BUG: 1157381 >Change-Id: I6bd4979e31adfc72af92c1da06a332557b6289e2 >Author: Jiffin Tony Thottan <jthottan@redhat.com> >Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> >Reviewed-on: http://review.gluster.org/8975 >Reviewed-by: Meghana M <mmadhusu@redhat.com> >Reviewed-by: Atin Mukherjee <amukherj@redhat.com> >Reviewed-by: Niels de Vos <ndevos@redhat.com> >Tested-by: Niels de Vos <ndevos@redhat.com> Change-Id: I328c17b07e877fe3b29ca832bf6f2291cea16bbe BUG: 1166505 Reviewed-on: http://review.gluster.org/9172 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: soumya k <skoduri@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/dht: Change log level to avoid annoying logsVijay Bellur2015-01-051-1/+1
| | | | | | | | | | | [2015-01-04 08:03:23.820376] I [dht-common.c:1822:dht_lookup_cbk] 0-patchy-dht: Entry /tls missing on subvol patchy-replicate-0 Change-Id: Id9eae47213ed39e8bf969e82cc7b935dfada4598 BUG: 1138385 Reviewed-on: http://review.gluster.org/9382 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/afr: Make entry-self-heal in afr-v2 compatible with afr-v1Pranith Kumar K2015-01-041-1/+28
| | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9227 Problem: entry self-heal in 3.6 and above, takes full lock on the directory only for the duration of figuring out the xattrs of the directories where as 3.5 takes locks through out the entry-self-heal. If the cluster is heterogeneous then there is a chance that 3.6 self-heal is triggered and then 3.5 self-heal will also triggered and both the self-heal daemons of 3.5 and 3.6 do self-heal. Fix: In 3.6.x and above get an entry lock on a very long name before entry self-heal begins so that 3.5 entry self-heal will not get locks until 3.6.x entry self-heal completes. BUG: 1177418 Change-Id: Iecf49d794c6b480e38563e39599a40067b3a21cb Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9355 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* features/locks: Add lk-owner checks in entrylkPranith Kumar K2015-01-042-21/+54
| | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9125 For backward compatibility of entry-self-heal we need entrylks to be accepted by same lk-owner and same client. This patch introduces these changes. BUG: 1177418 Change-Id: I83a0c1a9b13dce4b57e5bfce6339193a79b15648 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9354 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Fix mutex related coverity scan issuesXavier Hernandez2015-01-042-11/+19
| | | | | | | | | | | | | | | | | | | | | | | This patch solves 3 issues detected by coverity scan: CID1241484 Data race condition CID1241486 Data race condition CID1256173 Thread deadlock CID1257622 Thread deadlock With this patch, inode lock is never acquired inside a region locked with fop->lock. This is a backport of http://review.gluster.org/9230/ and http://review.gluster.org/9263/ Change-Id: I35c4633efd1b68b9f72b42661fa7c728b1f52c6a BUG: 1170954 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9244 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* gNFS: Allow reading ACLs even without read permissions on the file.Meghana Madhusudhan2015-01-022-9/+79
| | | | | | | | | | | | | | | | | | | | When root-squash is enabled or when no permissions are given to a file, NFS threw permission errors. According to the kernel-nfs behaviour, no permissions are required to read ACLs. When no ACLs are set, the system call sys_lgetxattr fails and returns a ENODATA error. This translates to ESERVERFAULT error in NFS. Fuse makes an exception to this error and returns a success case. Similar changes are made here to achieve the expected behaviour. Change-Id: I46b8f5911114eb087a3f8ca4e921b6b41e83f3b3 BUG: 1177899 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9085 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-on: http://review.gluster.org/9369 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* gluster/uss: Handle notify in snapview-clientvmallika2014-12-241-0/+25
| | | | | | | | | | | | | | | | | | As there are two subvolumes in snapview-client, there is a possibility that the regular subvolume is still down and snapd subvolume come up first. So if we don't handle this situation CHILD_UP event will be propagated upwards to fuse when regular subvolume is still down. This can cause data unavailable for the application Change-Id: I9e5166ed22c2cf637c15db0457c2b57ca044078e BUG: 1175738 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9205 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9310 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* gluster/uss: Handle ESTALE in snapview client when NFS server restartedSachin Pandit2014-12-242-13/+30
| | | | | | | | | | | | | | | | | | When NFS server is restarted inode-context is lost. Nameless lookup will be sent to regular volume. If the gfid is from virtual graph, lookup will fail with ESTALE. We need to send a lookup to snapview server Change-Id: I22920614f0d14cb90b53653fce95b6b70023eba6 BUG: 1175736 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9153 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Sachin Pandit <spandit@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9309 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* USS : Kill snapd during glusterd restart if USS is disabledSachin Pandit2014-12-241-5/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem : When glusterd is down on one of the nodes and during that time if USS is disabled then snapd will still be running in the node where glusterd was down. Solution : during restart of glusterd check if USS is disabled, if so then issue a kill for snapd. NOTE : The test case which I wrote in my previous patchset is facing some spurious failures, hence I thought of removing that test case. I'll add the test case once the issue is resolved. Change-Id: I2870ebb4b257d863cdfc319e8485b19e932576e9 BUG: 1175735 Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9062 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9307 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* gluster/uss: Don't send failure when accessing snap with name same as ↵vmallika2014-12-241-14/+2
| | | | | | | | | | | | | | | | | | | | | entry-point name. In a scenario, if the snap name is same as the snap-directory than cd to snaps/snaps fails. Send a lookup to snap-view server instead of failing Change-Id: Ie7b811815ff30961500592bbc8cdb514a9d76ef5 BUG: 1175733 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9135 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9306 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* uss/snapd: Handle readlink fops on snap view serverAvra Sengupta2014-12-241-0/+1
| | | | | | | | | | | | | | | | Handle readlink fops in case of symlinks on snap view server BUG: 1175756 Change-Id: Ia08e9e9c1c61e06132732aa580c5a9fd5e7c449b Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/9102 Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9305 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* mgmt/glusterd: Validate the options of ussvmallika2014-12-242-7/+15
| | | | | | | | | | | | | | Change-Id: Id13dc4cd3f5246446a9dfeabc9caa52f91477524 BUG: 1175755 Signed-off-by: Varun Shastry <vshastry@redhat.com> Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/8133 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9304 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* glusterd/snapshot: Don't append nouuid mount option for snapshot brick if ↵Sachin Pandit2014-12-242-1/+36
| | | | | | | | | | | | | | | | original brick already has this option Change-Id: I2841d2ac371a3e9505f6061f35d1d447946c0bae BUG: 1175732 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/8526 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9303 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* Avoid spurious directory metedata split brainEmmanuel Dreyfus2014-12-231-1/+115
| | | | | | | | | | | | | | | | | | | | | When directory content is modified, [mc]time is updated. On Linux, the filesystem does it, while at least on NetBSD, the kernel file-system independant code does it. This means that when entries are added while bricks are down, the kernel sends a SETATTR [mc]time which will cause metadata split brain for the directory. In this case, clear the split brain by finding the source with the most recent modification date. Backport of: Ic0177e0df753a4748624d0b906834ed54593adb9 BUG: 1138897 Change-Id: Ic2e697be4f0074e2bbd3f23d6ad40a2d2d126a2c Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/9319 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* uss/gluster: creating file/directories inside .snaps should fail with EROFS.vmallika2014-12-224-27/+37
| | | | | | | | | | | | | | | | When an attempt is made to create file/directories inside .snaps, it fails with wrong error message as "Stale file handle". It should fail with "Read-only file system" Change-Id: I3a812a0afc4762cbb71ab180b9394c866e576a66 BUG: 1175730 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9039 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9300 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* glusterd/snapshot: Check if LVM device path exists before deleteAvra Sengupta2014-12-221-46/+59
| | | | | | | | | | | | | | | | | | | | Check if the LV is present before deleting the LV. In case where the LV is absent (already deleted?), need not fail the snap delete operation. Also check if the LV is mounted before trying umount. In case it isn't umounted, only remove the LV. Change-Id: I0f5b2674797299d8748c6fac5b091f0caba65ca4 BUG: 1175754 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/8954 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9299 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Fix self-healing issues.Xavier Hernandez2014-12-2110-312/+549
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three problems have been detected: 1. Self healing is executed in background, allowing the fop that detected the problem to continue without blocks nor delays. While this is quite interesting to avoid unnecessary delays, it can cause spurious failures of self-heal because it may try to recover a file inside a directory that a previous self-heal has not recovered yet, causing the file self-heal to fail. 2. When a partial self-heal is being executed on a directory, if a full self-heal is attempted, it won't be executed because another self-heal is already in process, so the directory won't be fully repaired. 3. Information contained in loc's of some fop's is not enough to do a complete self-heal. To solve these problems, I've made some changes: * Improved ec_loc_from_loc() to add all available information to a loc. * Before healing an entry, it's parent is checked and partially healed if necessary to avoid failures. * All heal requests received for the same inode while another self-heal is being processed are queued. When the first heal completes, all pending requests are answered using the results of the first heal (without full execution), unless the first heal was a partial heal. In this case all partial heals are answered, and the first full heal is processed normally. * An special virtual xattr (not physically stored on bricks) named 'trusted.ec.heal' has been created to allow synchronous self-heal of files. Now, the recommended way to heal an entire volume is this: find <mount> -d -exec getfattr -h -n trusted.ec.heal {} \; Some minor changes: * ec_loc_prepare() has been renamed to ec_loc_update(). * All loc management functions return 0 on success and -1 on error. * Do not delay fop unlocks if heal is needed. * Added basic ec xattrs initially on create, mkdir and mknod fops. * Some coding style changes This is a backport of http://review.gluster.org/9072/ Change-Id: I2a5fd9c57349a153710880d6ac4b1fa0c1475985 BUG: 1159484 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9073 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
generated by cgit (git 2.34.1) at 2024-05-01 22:05:08 +0000