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* features/changelog: changelog translatorAvra Sengupta2013-07-2228-14/+5020
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the initial version of the Changelog Translator. What is it ----------- Goal is to capture changes performed on a GlusterFS volume. The translator needs to be loaded on the server (bricks) and captures changes in a plain text file inside a configured directory path (controlled by "changelog-dir", should be somewhere in <export>/.glusterfs/changelog by default). Changes are classified into 3 types: - Data: : TYPE-I - Metadata : TYPE-II - Entry : TYPE-III Changelog file is rolled over after a certain time interval (defauls to 60 seconds) after which a changelog is started. The thing to be noted here is that for a time interval (time slice) multiple changes for an inode are recorded only once (ie. say for 100+ writes on an inode that happens within the time slice has only a single corresponding entry in the changelog file). That way we do not bloat up the changelog and also save lots of writes. Changelog Format ----------------- TYPE-I and TYPE-II changes have the gfid on the entity on which the operation happened. TYPE-III being a entry op requires the parent gfid and the basename. Changelog format has been kept to a minimal and it's upto the consumers to do the heavy loading of figuring out deletes, renames etc.. A single changelog file records all three types of changes, with each change starting with an identifier ("D": DATA, "M": METADATA and "E": ENTRY). Option is provided for the encoding type (See TUNABLES). Consumers ---------- The only consumer as of today would be geo-replication, although backup utilities, self-heal, bit-rot detection could be possible consumers in the future. CLI ---- By default, change-logging is disabled (the translator is present in the server graph but does nothing). When enabled (via cli) each brick starts to log the changes. There are a set of tunable that can be used to change the translators behaviour: - enable/disable changelog (disabled by default) gluster volume set <volume> changelog {on|off} - set the logging directory (<brick>/.glusterfs/changelogs is the default) gluster volume set <volume> changelog-dir /path/to/dir - select encoding type (binary (default) or ascii) gluster volume set <volume> encoding {binary|ascii} - change the rollover time for the logs (60 secs by default) gluster volume set <volume> rollover-time <secs> - when secs > 0, changelog file is not open()'d with O_SYNC flag - and fsync is trigerred periodically every <secs> seconds. gluster volume set <volume> fsync-interval <secs> features/changelog: changelog consumer library (libgfchangelog) A shared library is provided for the consumer of the changelogs for easy acess via APIs. Application can link against this library and request for changelog updates. Conversion of binary logs to human-readable ascii format is also taken care by the library which keeps a copy of the changelog in application provided working directory. Change-Id: I75575fb7f1c53d2bec3dba1a329ea7bb3c628497 BUG: 847839 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5127 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: auxiliary gfid mount supportRaghavendra G2013-07-198-124/+1279
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * files can be accessed directly through their gfid and not just through their paths. For eg., if the gfid of a file is f3142503-c75e-45b1-b92a-463cf4c01f99, that file can be accessed using <gluster-mount>/.gfid/f3142503-c75e-45b1-b92a-463cf4c01f99 .gfid is a virtual directory used to seperate out the namespace for accessing files through gfid. This way, we do not conflict with filenames which can be qualified as uuids. * A new file/directory/symlink can be created with a pre-specified gfid. A setxattr done on parent directory with fuse_auxgfid_newfile_args_t initialized with appropriate fields as value to key "glusterfs.gfid.newfile" results in the entry <parent>/bname whose gfid is set to args.gfid. The contents of the structure should be in network byte order. struct auxfuse_symlink_in { char linkpath[]; /* linkpath is a null terminated string */ } __attribute__ ((__packed__)); struct auxfuse_mknod_in { unsigned int mode; unsigned int rdev; unsigned int umask; } __attribute__ ((__packed__)); struct auxfuse_mkdir_in { unsigned int mode; unsigned int umask; } __attribute__ ((__packed__)); typedef struct { unsigned int uid; unsigned int gid; char gfid[UUID_CANONICAL_FORM_LEN + 1]; /* a null terminated gfid string * in canonical form. */ unsigned int st_mode; char bname[]; /* bname is a null terminated string */ union { struct auxfuse_mkdir_in mkdir; struct auxfuse_mknod_in mknod; struct auxfuse_symlink_in symlink; } __attribute__ ((__packed__)) args; } __attribute__ ((__packed__)) fuse_auxgfid_newfile_args_t; An initial consumer of this feature would be geo-replication to create files on slave mount with same gfids as that on master. It will also help gsyncd to access files directly through their gfids. gsyncd in its newer version will be consuming a changelog (of master) containing operations on gfids and sync corresponding files to slave. * Also, bring in support to heal gfids with a specific value. fuse-bridge sends across a gfid during a lookup, which storage translators assign to an inode (file/directory etc) if there is no gfid associated it. This patch brings in support to specify that gfid value from an application, instead of relying on random gfid generated by fuse-bridge. gfids can be healed through setxattr interface. setxattr should be done on parent directory. The key used is "glusterfs.gfid.heal" and the value should be the following structure whose contents should be in network byte order. typedef struct { char gfid[UUID_CANONICAL_FORM_LEN + 1]; /* a null terminated gfid * string in canonical form */ char bname[]; /* a null terminated basename */ } __attribute__((__packed__)) fuse_auxgfid_heal_args_t; This feature can be used for upgrading older geo-rep setups where gfids of files are different on master and slave to newer setups where they should be same. One can delete gfids on slave using setxattr -x and .glusterfs and issue stat on all the files with gfids from master. Thanks to "Amar Tumballi" <amarts@redhat.com> and "Csaba Henk" <csaba@redhat.com> for their inputs. Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Change-Id: Ie8ddc0fb3732732315c7ec49eab850c16d905e4e BUG: 952029 Reviewed-on: http://review.gluster.com/#/c/4702 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/4702 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount/fuse: unlink the inode on revalidate if entry not foundBrian Foster2013-07-181-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | If an inode/dentry is linked via a client and removed via a separate client, the inode/dentry mapping in the initial client remains. A lookup of the removed name on the initial client typically returns ENOENT once the associated caches expire. If the initial client has multiple dentries linked to the same inode, however, lookups on the non-removed dentry create windows of time where lookups on the stale/removed name return successfully. This occurs because the stale mapping resolves to the still valid inode and tricks md-cache into returning valid lookup data. To correct this situation, unlink the stale inode mapping on a failed (ENOENT) revalidation lookup (i.e., when fuse has resolved the inode but a lookup returns ENOENT). Note that with this change, the state still occurs until an md-cache window has expired, allowed a lookup to pass through to the server and given the fuse translator an opportunity to clean up. Change-Id: I47dde2f11e2ef5b8dd51e9ac8be0f36cdb5081a3 BUG: 985074 Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/5337 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* locks: Added an xdata-based 'cmd' for inodelk count in a given domainshishir gowda2013-07-184-20/+67
| | | | | | | | | | | | | | | | | | | | Following is the semantics of the 'cmd': 1) If @domain is NULL - returns no. of locks blocked/granted in all domains 2) If @domain is non-NULL- returns no. of locks blocked/granted in that domain 3) If @domain is non-existent - returns '0'; This is important since locks xlator creates a domain in a lazy manner. where @domain - a string representing the domain. Change-Id: I5e609772343acc157ca650300618c1161efbe72d BUG: 951195 Original-author: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4889 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* dht: fix dht_discover_cbk doing a wrong layout set.shishir gowda2013-07-171-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | with the sequence of operations are like below, we have issues with current code (MP == mountpoint): T0,MP1# mkdir /abcd (Succeeds on hash_subvol) T1,MP2# mkdir /abcd (Gets EEXIST as dir exists in hash_subvol) T2,MP2# mkdir /.gfid/<abcd's gfid>/xyz (lookup happens on abcd's gfid, calls dht_discover) T3,MP1# (Completes mkdir(), goes to dir_selfheal to set the layouts). T4,MP2# (dht_discover_cbk gets success for lookup as the entry existed, as layout is not yet written, it says normalize done, found holes). T5,MP2# (as layout anomaly is not considered an issue in this patch, dht_layout_set happens on inode, with all xlators pointing to 0s) T6,MP1# (completes mkdir call, inode has proper layouts) T7,MP2# mkdir /.gfid/<abcd's gfid>/xyz fails with ENOENT (with log saying no subvol found for hash value of xyz. Porting Amar's fix from down-stream beta branch. Change-Id: Ibdc37ee614c96158a1330af19cad81a39bee2651 BUG: 982913 Original-author: Amar Tumballi <amarts@redhat.com> Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/5302 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Prevent dht_access from going into a loop.shishir gowda2013-07-153-1/+40
| | | | | | | | | | | | | | | | | If access fails with ENOTCONN, do not wind to same subvol. We wind to first-up-subvol if access fails with ENOTCONN. In few cases, if dht has only 1 subvolume, and access fails with ENOTCONN, we go into a infinite loop of winding to same subvol The fix is to check if we previously wound to same subvol, and fail if first-up-subvol is same. Change-Id: Ib5d3ce7d33e8ea09147905a7df1ed280874fa549 BUG: 983431 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/5319 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* afr: customize client-pid=-1 xtime aggregation to tolerate a replica downAvra Sengupta2013-07-151-2/+9
| | | | | | | | | | | | Using the new 'pluggable policies' API of libxlator. Change-Id: Ie7528182dff8fb42c6e8287a106d3057944df775 BUG: 847839 Original Author: Csaba Henk <csaba@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4904 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libxlator: implement pluggable aggregation policiesAvra Sengupta2013-07-155-47/+158
| | | | | | | | | | | | | | | | | The API is described in libxlator.h. Behavior remains the same for this commit; this is a preparatory step for per-translator customization of aggregation. Change-Id: I5d42923af59b2fd78e1ff59c12763875b57c5190 BUG: 847839 Original Author: Csaba Henk <csaba@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4903 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: node-uuid for directories winds to all subvolumesAvra Sengupta2013-07-151-2/+6
| | | | | | | | | | | | | | | this works similar to pathinfo now except that the request is sent to all subvolumes of dht. Underlying replica selects it's subvolume in a round-robin fashion till one of them returns successfully. Change-Id: Ie46c5f7090d04d8c2e487b209916ae6791e94624 BUG: 847839 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5225 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/*: get logic to calculate min() of the 'stime' xattrAvra Sengupta2013-07-144-2/+120
| | | | | | | | | | | | | | | | | | | | | | * in both distribute and replicate (ignoring stripe for now), add logic to calculate the min() of stime values. * What is a 'stime' ? Why is this required: - stime means 'slave xtime', mainly used to keep track of slave node's sync status when distributed geo-replication is used. Logic of calculating 'min()' for this stime is very important as in case of crashes/reboots/shutdown, we will have to 'restart' with crawling from stime time value from the mount point, which gives the 'min()' of all the bricks, which means, we don't miss syncing any files in the above cases. Change-Id: I2be8d434326572be9d4986db665570a6181db1ee BUG: 847839 Original Author: Amar Tumballi <amarts@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4893 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount/fuse: Provide option to use/not use kernel-readdirpPranith Kumar K2013-07-123-2/+19
| | | | | | | | | | | | | | By default fuse kernel readdirp usage in fuse xlator is off. When mount option use-readdirp=yes is provided it starts using fuse-kernel's readdirp. Change-Id: Id37edc53b1adc1638186d956c2f74c1e4e48aa59 BUG: 983477 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5322 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: Unlink dst file after cleanup during migrationshishir gowda2013-07-121-17/+17
| | | | | | | | | | | | | | | | | If a rename happens during migration, unlink fails. This leads to stale xattrs, and Sticky bits still being set. By removing the xattrs and Sticky bits from dst (through fd ops), the stale link file would be cleaned up eventually (even if unlink fails on src). Change-Id: Iec537d021905438327a20e1d811aa06e74034364 BUG: 983399 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/5316 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: If linkfile unlink fails with ENOTCONN, do not failshishir gowda2013-07-111-1/+2
| | | | | | | | | | | | | | Currently if linkfile fails with ENOENT, we do not fail. We also need to treat failures with ENOTCONN as success, as if cached subvol is up, rm of a file should succeed. A stale linkfile will get removed later Change-Id: I71d136847933351ed9e2c939bda4a69bc96a3cfc BUG: 983416 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/5317 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Give up biglock before brick's rpc unrefKrishnan Parthasarathi2013-07-111-1/+5
| | | | | | | | | | | | | This is to prevent the possibility of a deadlock when rpc_connection_cleanup being called in the same thread as rpc_clnt_unref Change-Id: Ia4dcc0a8a6e6158d4ddec68b780fccbc4cd64adb BUG: 962619 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5321 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Correct op-version of some optionsKaushal M2013-07-111-23/+23
| | | | | | | | | | | | | | | New options being introduced in the master branch should now have op-version set to the GD_OP_VERSION_MAX (3). Some of the options have been backported to release-3.3 branch and hence should have their op-version reduced. Some other options had op-version incorrectly set as 1. Change-Id: If40325b7b2da7aa36f90261024117cd18cf51ef0 BUG: 981278 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5318 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* mount/fuse: expose 'glusterfs.gfid*' virtual xattr keyAvra Sengupta2013-07-111-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | currently two keys are exposed: 'glusterfs.gfid' : output is 16byte binary gfid 'glusterfs.gfid.string' : output is 36 byte canonical format of gfid e.g. [root@supernova glusterfs]# getfattr -n glusterfs.gfid -e hex f0 glusterfs.gfid=0x68305acb73e541719804fcf36a4857e8 [root@supernova glusterfs]# getfattr -n glusterfs.gfid.string f0 glusterfs.gfid.string="68305acb-73e5-4171-9804-fcf36a4857e8" early consumers for this key would be geo-replication (as it has being designed to do namespace operations on gfid from the mount point, thereby needing the GFID for entry operations on the slave). Change-Id: I10b23dbd11628566ad6924334253f5d85d01a519 BUG: 847839 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5129 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* performance/io-cache: check for non-null gfid before calling inode_pathRaghavendra G2013-07-101-10/+13
| | | | | | | | | | | | | | | A new non-linked inode is added to lru list. Hence it might be possible that gfid might be NULL when inode_dump is called. To pass asserts in inode_path, we've to check for non-null gfid before invoking that procedure. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Change-Id: Iff14efc6d6e2faa33b9f7a81e0a66f6a947b77ed BUG: 976189 Reviewed-on: http://review.gluster.org/5241 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Ignore subvols with error in min-free-disk/inodesshishir gowda2013-07-105-17/+85
| | | | | | | | | | | | | | | Currently when selecting a alternative subvolume when hashed subvol has exceeded min-free-disk/inodes, we do not check if layouts have errors (including decommissioning). This leads to data being written to those subvolumes, and in case of decommissioning, will lead to data loss. Change-Id: Ie0c6cf4a29d7c53d8a6d8a8c1bd595cf58a0012a BUG: 982919 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/5299 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nfs: AUTH support for exported sub-directoriesRajesh Joseph2013-07-094-3/+363
| | | | | | | | | | | | | | | | | | | | | Problem: NFS allows exporting subdirectories but there is not support for providing AUTH on per directory basis. Fix: Modified nfs.export-dir to include AUTH parameters e.g. nfs.export-dir "/dir1(10.1.1.2),/dir2(10.1.1.0/24|host1) During mount operation NFS will check if the IP from where the connection is made is configured in the AUTH parameter, else the mount operation will fail with EACCES error. Updated admin-guide and volume set help message. Change-Id: I5c6d22edb168b4f46376d1cd6878cd065fc081cc BUG: 968227 Signed-off-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-on: http://review.gluster.org/5124 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* afr : change the log level in lookup path to minimize incessant logging.Ravishankar N2013-07-081-3/+3
| | | | | | | | | | | | | Change the logging levels from WARNING to DEBUG in the lookup path to minimize incessant logging in case of gfid mismatch errors. Change-Id: I631b16df3249cf826606f547531f985dac696088 BUG: 959083 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/4939 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* nufa: allow subvols with fanout > 1Krishnan Parthasarathi2013-07-041-67/+100
| | | | | | | | | | | | Previously, nufa wouldn't work on volume topologies such as distribute-replicate or distribute-stripe. Change-Id: Ia89ed4412a00601022c1fc94f046056ce4820fe8 BUG: 980838 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5262 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd/common-utils: move hostname helper functions to common-utilsKrishnan Parthasarathi2013-07-046-255/+20
| | | | | | | | | Change-Id: If47e209cb61ea0eb74ee2d6ef9e9342b2d6ee13a BUG: 980838 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5261 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* posix: add a simple health-checkerNiels de Vos2013-07-034-0/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Goal of this health-checker is to detect fatal issues of the underlying storage that is used for exporting a brick. The current implementation requires the filesystem to detect the storage error, after which it will notify the parent xlators and exit the glusterfsd (brick) process to prevent further troubles. The interval the health-check runs can be configured per volume with the storage.health-check-interval option. The default interval is 30 seconds. It is not trivial to write an automated test-case with the current prove-framework. These are the manual steps that can be done to verify the functionality: - setup a Logical Volume (/dev/bz970960/xfs) and format is as XFS for brick usage - create a volume with the one brick # gluster volume create failing_xfs glufs1:/bricks/failing_xfs/data # gluster volume start failing_xfs - mount the volume and verify the functionality - make the storage fail (use device-mapper, or pull disks) # dmsetup table .. bz970960-xfs: 0 196608 linear 7:0 2048 # echo 0 196608 error > dmsetup-error-target # dmsetup load bz970960-xfs dmsetup-error-target # dmsetup resume bz970960-xfs # dmsetup table ... bz970960-xfs: 0 196608 error - notice the errors caught by syslog: Jun 24 11:31:49 vm130-32 kernel: XFS (dm-2): metadata I/O error: block 0x0 ("xfs_buf_iodone_callbacks") error 5 buf count 512 Jun 24 11:31:49 vm130-32 kernel: XFS (dm-2): I/O Error Detected. Shutting down filesystem Jun 24 11:31:49 vm130-32 kernel: XFS (dm-2): Please umount the filesystem and rectify the problem(s) Jun 24 11:31:49 vm130-32 kernel: VFS:Filesystem freeze failed Jun 24 11:31:50 vm130-32 GlusterFS[1969]: [2013-06-24 10:31:50.500674] M [posix-helpers.c:1114:posix_health_check_thread_proc] 0-failing_xfs-posix: health-check failed, going down Jun 24 11:32:09 vm130-32 kernel: XFS (dm-2): xfs_log_force: error 5 returned. Jun 24 11:32:20 vm130-32 GlusterFS[1969]: [2013-06-24 10:32:20.508690] M [posix-helpers.c:1119:posix_health_check_thread_proc] 0-failing_xfs-posix: still alive! -> SIGTERM - these errors are in the log of the brick as well: [2013-06-24 10:31:50.500607] W [posix-helpers.c:1102:posix_health_check_thread_proc] 0-failing_xfs-posix: stat() on /bricks/failing_xfs/data returned: Input/output error [2013-06-24 10:31:50.500674] M [posix-helpers.c:1114:posix_health_check_thread_proc] 0-failing_xfs-posix: health-check failed, going down [2013-06-24 10:32:20.508690] M [posix-helpers.c:1119:posix_health_check_thread_proc] 0-failing_xfs-posix: still alive! -> SIGTERM - the glusterfsd process has exited correctly: # gluster volume status Status of volume: failing_xfs Gluster process Port Online Pid ------------------------------------------------------------------------------ Brick glufs1:/bricks/failing_xfs/data N/A N N/A NFS Server on localhost 2049 Y 1897 Change-Id: Ic247fbefb97f7e861307a5998a9a7a3ecc80aa07 BUG: 971774 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/5176 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Let two data-self-heals compete in new domainPranith Kumar K2013-07-034-23/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: At the moment data-self-heal acquires locks in following pattern. It takes full file lock then gets xattrs on files on both replicas. Decides sources/sinks based on the xattrs. Now it acquires lock from 0-128k then unlocks the full file lock. Syncs 0-128k range from source to sink now acquires lock 128k+1 till 256k then unlocks 0-128k, syncs 128k+1 till 256k block... so on finally it takes full file lock again then unlocks the final small range block. It decrements pending counts and then unlocks the full file lock. This pattern of locks is chosen to avoid more than 1 self-heal to be in progress. BUT if another self-heal tries to take a full file lock while a self-heal is already in progress it will be put in blocked queue, further inodelks from writes by the application will also be put in blocked queue because of the way locks xlator grants inodelks. So until the self-heal is complete writes are blocked. Here is the code: xlators/features/locks/src/inodelk.c - line 225 if (__blocked_lock_conflict (dom, lock) && !(__owner_has_lock (dom, lock))) { ret = -EAGAIN; if (can_block == 0) goto out; gettimeofday (&lock->blkd_time, NULL); list_add_tail (&lock->blocked_locks, &dom->blocked_inodelks); } This leads to hangs in applications. Fix: Since we want to prevent two parallel self-heals. We let them compete in a separate "domain". Lets call the domain on which the locks have been taken on in previous approach as "data-domain". In the new approach When a self-heal is triggered, it acquires a full lock in the new domain "self-heal-domain". After this it performs data-self-heal using the locks in "data-domain" as before. unlock the full file lock in "self-heal-domain" With this approach, application's writevs don't have to wait in pending queue when more than 1 self-heal is triggered. Change-Id: Id79aef3dfa888945977fb9758374ac41c320d0d5 BUG: 967717 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5100 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Refactor inodelk to handle multiple domainsPranith Kumar K2013-07-0311-428/+500
| | | | | | | | | | | | | | | | | | - afr_local_copy should not be memduping locked nodes, that would mean that lock is taken in self-heal on those nodes even before it actually takes the lock. So removed memdup code. Even entry lock related copying (lockee info) is also not necessary for self-heal functionality, so removing that as well. Since it is not local_copy anymore changed its name. - My editor changed tabs to spaces. Change-Id: I8dfb92cb8338e9a967c06907a8e29a8404782d61 BUG: 967717 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5099 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Provide an option to disable afr durabilityPranith Kumar K2013-07-034-3/+28
| | | | | | | | | Change-Id: I40eec20ca6b3f857245a2438883822e251077ee9 BUG: 979365 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5269 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: post-op should complete before starting flushPranith Kumar K2013-07-033-36/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: At the moment afr-flush makes sure that a delayed post-op is woken up but it does not wait for it to complete the post-op before flush unwinds. These are the steps that are happening: 1) flush fop comes on an fd which wakes up a delayed post-op and continues with the flush fop. 2) post-op sends fsync on the wire. 3) flush completes and unwinds to fuse. 4) graph switch happens on the fuse mount disconnecting the old graph's client connections to bricks. 5) xattrop after fsync fails with ENOTCONN because the connections from old graph are taken down now. Fix: Wait for post-op to complete before starting to flush. We could make flush act similar to fsync (i.e.) wind flush as is but wait for post-op to complete before unwinding flush, but it is better to send flush as the final fop. So wind of flush will start after post-op is complete. Had to change fsync to accommodate this change. Change-Id: I93aa642647751969511718b0e137afbd067b388a BUG: 980548 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5274 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: More checks before starting rebalance/remove-brickKaushal M2013-07-024-12/+60
| | | | | | | | | | | | Check if a previous remove-brick operation has been committed before starting a new rebalance/remove-brick task. Change-Id: I553e5ba64a6a352ca91032ab1a17997051a4494e BUG: 963541 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5019 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Allow data/entry self heal for metadata split-brainVenkatesh Somyajulu2013-07-027-134/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Currently whenever there is metadata split-brain, a variable sh->op_failed is set to 1 to denote that self heal got failed. But if we proceed for data self heal, even code-path of data self heal also relies on the sh->op_failed variable. So if will check for sh->op_failed variable and will eventually fails to do data self heal. So needed a mechanism to allow data self heal even if metadata is in split brain. Fix: Some data structure revamp is done in http://review.gluster.com/#/c/5106/ fix and this patch is based on the above fix. Now we can store which particular self-heal got failed i.e GFID_OR_MISSING_ENTRY_SELF_HEAL, METADATA, DATA, ENTRY. And we can do two types of self heal failure check. 1. Individual type check: We can check which among all four (Metadata, Data, Gfid or missing entry, entry self heal) got failed. 2. In afr_self_heal_completion_cbk, we need to make check based on the fact that if any specific self heal got failed treat the complete self heal as failure so that it will populate corresponding circular buffer of event history accordingly. Change-Id: Icb91e513bcc752386fc8a78812405cfabe5cac2d BUG: 977797 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/5253 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nfs: exit when all volumes are disabledRajesh Amaravathi2013-06-281-4/+5
| | | | | | | | | | | | | Instead of triggering 4-5 error logs, when nfs is disabled for all volumes, exit the process. Change-Id: Ib286f143c4f74ba22f502aca0e7dcd0907db6563 BUG: 976750 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/5245 Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Handle NULL fdctx in fsyncPranith Kumar K2013-06-271-1/+4
| | | | | | | | | | | | | | | | | | | Problem: If fdctx is NULL in afr_fsync, process crashes because of NULL dereference. Fix: if fdctx is NULL, always say witnessed unstable write so that fsyncs are done properly. Handled fdctx being null in afr_delayed_changelog_post_op otherwise fsync stub is never resumed and the mount was hanging. Change-Id: Icacc900e9be63c29db3325cb0e19cc250adebaac BUG: 978794 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5258 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* protocol/server: Initialize connection variablePranith Kumar K2013-06-271-0/+2
| | | | | | | | | Change-Id: I46badd812e9b936911ddd2793cef7ce30ec220a6 BUG: 979237 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5266 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* build: declare lvm_lv_from_name() if it is missing from lvm2app.hNiels de Vos2013-06-271-0/+6
| | | | | | | | | | | | | | | | | | | | | The bd-xlator can not be built successfully on certain Debian distributions due to a missing declaration of lvm_lv_from_name(). This function is available for linking, but it does not exist in the header file. This change adds a detection for lvm_lv_from_name() in both the library for linking, and the declaration in the header file. If the 1st is missing, the bd-xlator can not be built, and if only the 2nd one is missing, we'll declare lvm_lv_from_name() ourselves. This makes it possible to build the bd-xlator on the affected Debian distributions too. Change-Id: I0c823a7861b02bb5d9c1abb76ebfff92f272f9eb BUG: 976946 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/5250 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nfs: Remove afr split-brain handling in nfsPranith Kumar K2013-06-252-18/+0
| | | | | | | | | | | | | | | | We added this code as an interim fix until afr can handle split-brains even when opens are not issued. Afr code has matured to reject fd based fops when there are split-brains so we can remove it. Change-Id: Ib337f78eccee86469a5eaabed1a547a2cea2bdcf BUG: 974972 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5227 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Fix fd/memory leak on fsyncPranith Kumar K2013-06-241-1/+1
| | | | | | | | | Change-Id: I764883811e30ca9d9c249ad00b6762101083a2fe BUG: 976800 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5248 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/dht: In reconfig handle removed decommissioned nodesshishir gowda2013-06-211-0/+26
| | | | | | | | | | | | | | If no decommissioned nodes options are set in the options, then clear the conf->decommissioned_bricks. Change-Id: I426d2bcc874aab21b2eba0b16a580b9a26672ea2 Signed-off-by: shishir gowda <sgowda@redhat.com> BUG: 973073 Reviewed-on: http://review.gluster.org/5199 Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* rpc: duplicate request cache for nfsRajesh Amaravathi2013-06-2112-170/+223
| | | | | | | | | | | | | | | Duplicate request cache provides a mechanism for detecting duplicate rpc requests from clients. DRC caches replies and on duplicate requests, sends the cached reply instead of re-processing the request. Change-Id: I3d62a6c4aa86c92bf61f1038ca62a1a46bf1c303 BUG: 847624 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/4049 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* store: move glusterd_store functions from mgmt/glusterd to libglusterfsNiels de Vos2013-06-206-867/+179
| | | | | | | | | | | | | Making the glusterd_store_* functions re-usable will help with future changes that need to read/write lists of items. BUG: 904065 Change-Id: I99fb8eced76d12d5a254567eccff9790b43d8da3 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/4676 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Perform delayed changelog wakeups for anon fdPranith Kumar K2013-06-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | Problem: Nfs xlator never does open on a file for performing writes, afr does not perform changelog wakeup for this fd so operations which do metadata operations as soon as the data operations are completed perceive a delay of 'post-op-delay-secs'. Fix: Perform changelog wakeup on anon-fd if the fd with same pid is not present in inode-list. Note: This approach is a short-term fix. A proper fix needs a new domain for taking metadata locks so that data/metadata locks don't compete with each other. Change-Id: I253afb289eadf30c7951e56fb2c4840d7132f5e4 BUG: 966018 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5066 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nfs/mount3: fix crash in subdir resolutionMichael Brown2013-06-191-1/+1
| | | | | | | | | | | | | * __mnt3_resolve_export_subdir_comp: if nfs_entry_loc_fill fails, mres->resolveloc does not contain valid data * gf_log should use 'gfid' instead of mres->resolveloc.inode->gfid * fixes a crash if program flow gets to this line Change-Id: Idb0d6f97ea73eaf9056d28267ad7a42aa8cf6579 Signed-off-by: Michael Brown <michael@netdirect.ca> Reviewed-on: http://review.gluster.org/4948 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
* protocol/server: print connection-id in fop failure logs.Raghavendra G2013-06-181-197/+275
| | | | | | | | | | | | | | | | Currently we have tuple (server-xlator-name, callid) for identifying a call. However it does not uniquely identify the operation when there are multiple clients (since operations from all clients go through same server). Adding connection-id resolves this ambiguity. Also printing connection-id helps diagnose failures associated with connection state (like fds, locks). Change-Id: I13563bd06ee9b72fc1a10d239f77db5183658573 BUG: 963540 Signed-off-by: Raghavendra G <raghavendra@gluster.com> Reviewed-on: http://review.gluster.org/5011 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: Log peer op status at the appropriate timeKrutika Dhananjay2013-06-186-72/+284
| | | | | | | | | | Change-Id: Ia8e1af082078f2f791708ba4faa4992bf291dd6e BUG: 961339 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/5023 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Disable transport before cleaning up rpc objectKrishnan Parthasarathi2013-06-183-19/+99
| | | | | | | | | | | | | | | | | | | | | | | | | Problem: rpc_transport object, which is part of rpc_clnt, is destroyed prematurely. This is because, rpc_transport object is ref'd by socket layer and rpc layer. These ref's, until the synctask'izing of operations, were unref'd sequentially in the epoll thread. With more threads at play, the sequential unref guarantee is off. Fix: Shutting down the transport before proceeding with cleaning up of rpc_clnt object would serialize the unref's on the rpc_transport object and thus eliminating the race. Also, we don't store the address of brickinfo in brick's rpc notify function, to avoid the possibility of referring a freed brickinfo. Instead we use a string based id to 'reach' the corresponding brickinfo. Change-Id: If2739e2eeaee1e8b071ab2b6754b7ea0f81cfceb BUG: 962619 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5000 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nfs: log stale mount errors occasionallyRajesh Amaravathi2013-06-182-11/+14
| | | | | | | | | | | | | log the state mount errors only occasionally so as not to fill log file with too many of them. Change-Id: Ib5a2485dc2ce3a181cff34bbb6d7aba17a2e4d4d BUG: 804301 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/5229 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* protocol/rpc: move latest added procedures to the end of the arrayNiels de Vos2013-06-172-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | While looking at the newly introduced procedures FALLOCATE and DISCARD, it seems that these were added with already existing procedure numbers. This makes the protocol incompatible with existing roll-outs. It is very confusing when new procedures are added somewhere in the middle of the array. This will cause the number of existing procedures to change. It is much preferred to add new procedures at the end of the array. This changes not only corrects the enum that generates the procedure numbers, but also the ordering in the client and server fops-array for clarity. Correcting this greatly simplifies adding support for these new procedures in Wireshark and will prevent confusion to the people reading network traces (with or without Wireshark). Change-Id: Ib9e7978531d016c7230d756b855cb94cb0793b0f BUG: 974976 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/5215 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* nfs: option to disable aclRajesh Amaravathi2013-06-154-6/+33
| | | | | | | | | | | | | | | | 1. Option to disable or enable acl with nfs.acl boolean option. 2. Deregister the acl service with the portmapper service when no longer required. Change-Id: I6562b6b40138d040aa2bf1e5641f4c0e0e9f9d09 BUG: 970070 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/5136 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Ignore directories matching *.tmp in storeKrishnan Parthasarathi2013-06-131-0/+1
| | | | | | | | | | | | store being glusterd's persistent store under /var/lib/glusterd/ Change-Id: I1c01a09a8ce4a73ea612f05e7f14d4ab39ad1628 BUG: 971796 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5177 Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Improvement in logging of self heal completion statusVenkatesh Somyajulu2013-06-137-83/+280
| | | | | | | | | | | | | | | | | | | | | | Problem: As the end of the self heal, message logged by "afr_self_heal_completion_cbk" is inadequate to determine what exactly failed during the course of afr self heal. It is worth to have knowledge of what all types of self heal got triggered for an entity and whether the status is success or failure. Fix: At the end of self heal, it will log information about out of 4 types of self heal (gfid or missing entry self heal, metadata, data and entry self heal), who all got triggered and who all got failed or successful at the end. Change-Id: I5360762fbd7d391ac4c6af6706b4835c5801835a BUG: 968301 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/5106 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfs: discard (hole punch) supportBrian Foster2013-06-1319-38/+1171
| | | | | | | | | | | | | | | | Add support for the DISCARD file operation. Discard punches a hole in a file in the provided range. Block de-allocation is implemented via fallocate() (as requested via fuse and passed on to the brick fs) but a separate fop is created within gluster to emphasize the fact that discard changes file data (the discarded region is replaced with zeroes) and must invalidate caches where appropriate. BUG: 963678 Change-Id: I34633a0bfff2187afeab4292a15f3cc9adf261af Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/5090 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gluster: add fallocate fop supportBrian Foster2013-06-1318-2/+1311
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
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