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* glusterd/geo-rep: Handle empty monitor.status during upgradeSaravanakumar Arumugam2016-07-112-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Consider geo-replication is in Stopped state. Following which, glusterfs is upgraded (where monitor.status is the new status file). Now, When geo-replication status command is run, empty monitor status file gets created. Now, if glusterd is restarted, it reads empty monitor status and starts geo-replication session. This is incorrect as session was in Stopped state earlier. Solution: If monitor status is empty, error out and avoid starting geo-replication session. Note: if monitor status is empty, geo-rep session is displayed as Stopped state. Change-Id: Ifb3db896e5ed92b927764cf1163503765cb08bb4 BUG: 1351071 Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com> Reviewed-on: http://review.gluster.org/14830 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* "md-cache: Enable caching of stat fetched from readdirpPoornima G2016-07-111-4/+1
| | | | | | | | | | | | | | | | | | | Patch http://review.gluster.org/11894 removed readdirp fop for md-cache, but there is no mention of exact xlator which was failing because of this. As mentioned by Rafi(author of patch 11894) tiering and svc doesn't really need this as the inode_ctx is populated in readdirp_cbk. Hence reverting this commit. This reverts commit c8c9308134ae4ce24c630a1b0ccfcf4e8f9b0fe7. Change-Id: Ib8d00b3f129596f3a54984f839199175f5c9b55b BUG: 1211863 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/14879 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Zhou Zhengping <johnzzpcrystal@gmail.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* feature/bitrot: Show whether scrub is in progress/idleKotresh HR2016-07-114-13/+44
| | | | | | | | | | | | | | | | | Bitrot scrub status shows whether the scrub is paused or active. It doesn't show whether the scrubber is actually scrubbing or waiting in the timer wheel for the next schedule. This patch shows this status with "In Progress" and "Idle" respectively. Change-Id: I995d8553d1ff166503ae1e7b46282fc3ba961f0b BUG: 1352871 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/14864 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/afr: Fix a minor typo in afr-self-heald.cVijay Bellur2016-07-091-6/+6
| | | | | | | | | | | | s/outout/output/ Change-Id: I2aec770cdae513cd4932e5fd56e0267584e44cae Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/13930 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Zhou Zhengping <johnzzpcrystal@gmail.com>
* mgmt: remove unused and misleading pmap_signupJeff Darcy2016-07-071-33/+0
| | | | | | | | | | | | | | | We use signin, but not signup. Having both just introduces confusion. The proc number has been retained to avoid changes to the numbering of other procs, and the mapping to a name has similarly been retained as a placeholder, but the code and structure definitions have been removed. Change-Id: I60f64f3b5d71ba6ed6862b36a38f90a9c8271c9f Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/14792 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* storage/posix: fix inode leaksRaghavendra G2016-07-052-1/+6
| | | | | | | | | | | | | Change-Id: Ibd221ba62af4db17bea5c52d37f5c0ba30b60a7d BUG: 1344885 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/14739 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: N Balachandran <nbalacha@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* glusterd: Don't start bricks if server quorum is not metSamikshan Bairagya2016-07-052-15/+65
| | | | | | | | | | | | | | | | | | | | | Upon glusterd restart if it is observered that the server quorum isn't met anymore due to changes to the "server-quorum-ratio" global option, the bricks should be stopped if they are running. Also if glusterd has been restarted, and if server quorum is not applicable for a volume, do not restart the bricks corresponding to the volume to make sure that bricks that have been brought down purposely, say for maintenance, are not brought up. This commit moves this check that was previously inside "glusterd_spawn_daemons" to "glusterd_restart_bricks" instead. Change-Id: I0a44a2e7cad0739ed7d56d2d67ab58058716de6b BUG: 1345727 Signed-off-by: Samikshan Bairagya <samikshan@gmail.com> Reviewed-on: http://review.gluster.org/14758 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* upcall: Invalidation for xattr should also carry a valid statPoornima G2016-07-052-41/+83
| | | | | | | | | | | | | | | xattr modification also impacts the ctime of the file, hence include the new stat along with the new xattrs, in the invalidation request Change-Id: Ieaa4382fa62f397f61a995b926013b9207c6e9da BUG: 1352671 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/14828 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* glusterd: spawn daemons from init() on a single or two node setupAtin Mukherjee2016-07-053-6/+30
| | | | | | | | | | | | | | | | | Allow glusterd to spawn the daemons at the time of initialization when peer count is less than 2. This is required if user wants to set up a two node cluster with out server side quorum and want the bricks to come up on a node where the other node is down, however the behaviour will be overriden when server side quorum is enabled. Change-Id: I21118e996655822467eaf329f638eb9a8bf8b7d5 BUG: 1352277 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/14848 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* features/bitrot: Option to set scrub interval to a minuteKotresh HR2016-07-052-0/+8
| | | | | | | | | | | | | | | | | | | | Bitrot scrub-frequency supports "hourly|daily|weekly|biweekly|monthly". But it is painful for testing as minimum scrub-interval is an hour Hence introducing a scrub interval of minute to ease testing. It is intentionally not exposed in bitrot command help as it is only for testing. e.g., gluster vol bitrot <volname> scrub-frequency minute Change-Id: I155a65298d3fad5ae9e529d9c7d4b0d25fa297c0 BUG: 1351537 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/14836 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* glusterd: search port from last_alloc to base_portAtin Mukherjee2016-07-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a brick process is killed ungracefully then GlusterD wouldn't receive a PMAP_SIGNOUT event and hence the stale port details wouldn't be removed out. Now consider the following case: 1. Create a volume with 1 birck 2. Start the volume (say brick port allocated is 49152) 3. Kill the brick process by 'kill -9' 4. Stop & delete the volume 5. Recreate the volume and start it. (Now the brick port gets 49153) 6. Mount the volume Now in step 6 mount will fail as GlusterD will provide back the stale port number given the query starts searching from the base_port. Solution: To avoid this, searching for port from last_alloc and coming down to base_port should solve the issue. Change-Id: I9afafd722a7fda0caac4cc892605f4e7c0e48e73 BUG: 1334270 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/14268 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Samikshan Bairagya <samikshan@gmail.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* md-cache: Cache gluster-samba metadataPoornima G2016-07-052-1/+38
| | | | | | | | | | | | Change-Id: I0a95f4897440c5bf6f54612d9c232e015c8bf983 BUG: 1211863 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/14824 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Prashanth Pai <ppai@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* glusterd: compare uuid instead of hostname address resolutionAtin Mukherjee2016-07-053-9/+6
| | | | | | | | | | | | | | | | | | | | | | | | | In glusterd_get_brickinfo () brick's hostname is address resolved. This adds an unnecessary latency since it uses calls like getaddrinfo (). Instead given the local brick's uuid is already known a comparison of MY_UUID and brickinfo->uuid is much more light weight than the previous approach. On a scale testing where cluster hosting ~400 volumes spanning across 4 nodes, if a node goes for a reboot, few of the bricks don't come up. After few days of analysis its found that glusterd_pmap_sigin () was taking signficant amount of latency and further code walthrough revealed this unnecessary address resolution. Applying this fix solves the issue and now all the brick processes come up on a node reboot. Change-Id: I299b8660ce0da6f3f739354f5c637bc356d82133 BUG: 1352279 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/14849 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Prashanth Pai <ppai@redhat.com> Reviewed-by: Samikshan Bairagya <samikshan@gmail.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* logging: Change log file name for glusterdVijay Bellur2016-07-041-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | log file names are based on: a. user provided input (through -l switch while starting a gluster process) b. mount point paths in the case of native clients c. volume/configuration files used for starting a gluster process d. volume server used for starting a gluster process Currently glusterd uses scheme c. to have a log file name that reads as INSTALL_PREFIX-etc-glusterfs-glusterd.log Since glusterd has a well known configuration file, it does not make much sense to have log file name based on scheme c. This patch changes the name of glusterd's log file to "glusterd.log". Hopefully this enables users to identify glusterd's log file more easily. Change-Id: I2d04179c4b9b06271b50eeee3909ee259e8cf547 BUG: 1348944 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/13426 Tested-by: Atin Mukherjee <amukherj@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* glusterd: glusterd must store all rebalance related informationSakshi Bansal2016-07-042-1/+61
| | | | | | | | | | | Change-Id: I8404b864a405411e3af2fbee46ca20330e656045 BUG: 1351021 Signed-off-by: Sakshi Bansal <sabansal@redhat.com> Reviewed-on: http://review.gluster.org/14827 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* georep: add reset-sync-time option for session deleteMilind Changire2016-06-281-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | Set the stime xattr at all the brick roots to (0,0) if the argument reset-sync-time has been provided on the command-line. To avoid testing against directory specific stime, the remote stime is assumed to be minus_infinity, if the root directory stime is set to (0,0), before the directory scan begins. This triggers a full volume resync to slave in the case of a geo-rep session recreation with the same master-slave volume pair. Command synopsis: gluster volume geo-replication <MASTERVOL> <SLAVE>::<SLAVEVOL> delete \ [reset-sync-time] Update gluster cli man page to include new sub-command reset-sync-time. Change-Id: Ie4ce03b9425ed9bb81eda8681058c0fc6f990948 BUG: 1311926 Signed-off-by: Milind Changire <mchangir@redhat.com> Reviewed-on: http://review.gluster.org/14051 Reviewed-by: Kotresh HR <khiremat@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Aravinda VK <avishwan@redhat.com>
* libglusterfs: Implement API that provides page-aligned iobufsKrutika Dhananjay2016-06-281-33/+11
| | | | | | | | | | | | | | | | | | | | | One of the consumers of a page aligned buffer would be posix's readv fop on O_DIRECT fds. Today the way it works is by getting a page-aligned buffer through calloc, pread()ing into this buffer and then copying its contents into a newly created iobuf's ptr. This results in an extra memcpy() which can be avoided if we could implement an api that would return an iobuf whose ptr is page-aligned. That way the iobuf->ptr can be directly passed to sys_pread() as a parameter by posix translator. Change-Id: I385139bc6ee309fc501034b3af8f7814fab8cd65 BUG: 1343838 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/14672 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Zhou Zhengping <johnzzpcrystal@gmail.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* glusterd/cli: coverity fixesAtin Mukherjee2016-06-284-19/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A downstream coverity run has revealed few of the following coverity defects. Since the downstream code is a clone of a specific upstream branch the defects hold true for the upstream as well. Defect type: NEGATIVE_RETURNS xlators/mgmt/glusterd/src/glusterd-rpc-ops.c:641: negative_returns: "op_errno" is passed to a parameter that cannot be negative. Defect type: BUFFER_SIZE_WARNING xlators/mgmt/glusterd/src/glusterd-volume-ops.c:2124: buffer_size_warning: Calling strncpy with a maximum size argument of 261 bytes on destination array "volinfo->volname" of size 261 bytes might leave the destination string unterminated. Defect type: BUFFER_SIZE_WARNING xlators/mgmt/glusterd/src/glusterd-volgen.c:4888: buffer_size_warning: Calling strncpy with a maximum size argument of 261 bytes on destination array "volinfo->volname" of size 261 bytes might leave the destination string unterminated. Defect type: STRING_OVERFLOW xlators/mgmt/glusterd/src/glusterd-volgen.c:3449: string_overflow: You might overrun the 256 byte destination string "tmp_volname" by writing 261 bytes from "volinfo->volname". Defect type: BUFFER_SIZE_WARNING xlators/mgmt/glusterd/src/glusterd-utils.c:3392: buffer_size_warning: Calling strncpy with a maximum size argument of 261 bytes on destination array "new_volinfo->volname" of size 261 bytes might leave the destination string unterminated. Defect type: NO_EFFECT xlators/mgmt/glusterd/src/glusterd-utils.c:7359: remediation: Was "rebal->rebalance_id" formerly declared as a pointer? Defect type: USE_AFTER_FREE xlators/mgmt/glusterd/src/glusterd-utils.c:7115: pass_freed_arg: Passing freed pointer "volinfo" as an argument to "glusterd_friend_contains_vol_bricks". Defect type: DEADCODE cli/src/cli-cmd-parser.c:1767: dead_error_begin: Execution cannot reach this statement: "ret = -1;". Change-Id: Ie941bdf31923e2f39618dd94bfae16fdb3ad65f1 BUG: 789278 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/14818 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* nfs: allow hostnames with dashes in exports/netgroups filesNiels de Vos2016-06-285-3/+27
| | | | | | | | | | | | | | | | | | | | Hostnames with dashes (like "vagrant-testVM") are not correctly parsed when reading the exports/netgroups files. This bacomes obvious when running ./run-tests-in-vagrant.sh because it causes tests/basic/mount-nfs-auth.t and tests/basic/netgroup_parsing.t to fail. The regex for hostname (in exports) and the entry and hostname (netgroups) parsing does not include the "-" sign, and hence the hostnames are splitted at it. BUG: 1350237 Change-Id: I38146a283561e1fa386cc841c43fd3b1e30a87ad Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/14809 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* protocol/server: Fix client/server compatibilityAvra Sengupta2016-06-281-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | The 3.8 client expects a child_up key from the server indicating the status of the server translators. This key is not being sent by the servers running older versions, thereby breaking compatibility. With this patch we are treating the absence of the said key as an indication that the server trying to connect to this client is running an older version and hence in such a case we are setting conf->child_up as _gf_true explicitly. This should suffice in emulating the older behavior. Due to the nature of this bug, requiring two version to be reproducible, there are no testcases added for the same. Change-Id: I29e0a5c63b55380dc9db8e42852d7e95b64a2b2e BUG: 1350327 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/14811 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.org>
* features/index: Delete parent dir indices when heal on it is completeKrutika Dhananjay2016-06-281-34/+89
| | | | | | | | | | | | | | | | | | | | | | | | | In this patch, the state information about whether a directory gfid index is present or not is stored in the inode ctx with values IN and NOTIN. This saves index xl the need to perform stat() everytime an index_entry_create() is called. When a brick is restarted these in-memory inode ctx records will be gone. So when granular entry heal happens after a brick is restarted, and a post-op is done on the parent, if the state gotten from inode ctx is UNKNOWN, then index xl does a stat to initialize the state as IN or NOTIN. Note that this is a one-time operation for the lifetime of the brick. Such a change also helps avoid calling index_del() in xattrop_index_action() periodically even when granular self-heal is disabled or when the volume type is disperse. Change-Id: Ib92c17350e6531b91ab81477410fe1e7a5856207 BUG: 1331323 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/14781 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* glusterd/geo-rep: Add relative path validation to copy file commandAravinda VK2016-06-271-0/+34
| | | | | | | | | | | | | | Added validation for input file, command fails if input file path is relative path pointing outside of GLUSTERD_WORKDIR. BUG: 1348897 Change-Id: I329d43ebed69bfe9fe03d6be70dc8c78a605ffc5 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/14772 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* storage/posix: Give correct errno for anon-fd operationsPranith Kumar K2016-06-264-48/+52
| | | | | | | | | | | Change-Id: Ia9e61d3baa6881eb7dc03dd8ddb6bfdde5a01958 BUG: 1343906 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/14669 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* afr:Don't wind reads for files in metadata split-brainRavishankar N2016-06-241-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: For a read on a file in metadata split-brain: 1.lookup_done resets event_generation to zero. 2. readv is issued, goes to inode refresh due to mismatching event_gen. 3. After refresh is successful, we update event_generation, data and metdata readable. 3. We then call afr_read_txn_refresh_done() which in turn calls afr_inode_get_readable() but doesn't check for EIO. So afr_readv_wind is called with local->readable (which is populated with data_readable), thus winding the read to a brick. 4. Also, further parallel reads that come directly go to the wind path because there is no inode_refresh needed. Fix: 1.For any afr_read_txn(), readable must be an intersection of data and metadata readable. 2.Check for EIO in afr_read_txn_refresh_done(). Change-Id: I22dd221fdfaf96d7aced2f474e28ed1337d69f0e BUG: 1305031 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/13389 Reviewed-by: Ashish Pandey <aspandey@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* features/index: Do deletion of name-index in unwind pathKrutika Dhananjay2016-06-233-33/+96
| | | | | | | | | | | | | | | | | Previously the deletion of name index was being done before winding the xattrop to posix. This order needs to be changed to ensure we don't lose the index in the event the xattrop fails in posix xl. Change-Id: I4aa892b102cbf5269cede041b871064563cb7348 BUG: 1331323 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/14742 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Ravishankar N <ravishankar@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Wrong type of function's parameter when calling ↵Zhou Zhengping2016-06-231-7/+5
| | | | | | | | | | | | | | | | dht_selfheal_dir_xattr_cbk The second parameter's type is call_frame_t *, and we change it to be type xlator_t *, it is exactly what we need in this function. Change-Id: I6a154edcaa5a11084d837ca925efbfac853d0786 BUG: 1346551 Signed-off-by: Zhou Zhengping <johnzzpcrystal@gmail.com> Reviewed-on: http://review.gluster.org/14737 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* glusterd/ganesha : persist value set by teardown in info fileJiffin Tony Thottan2016-06-231-2/+25
| | | | | | | | | | | | | | | | | | | | During teardown, all the volumes exported via NFS-Ganesha will be unexported. So all related volume options need to reset. Currently this change made using dict_set on volopt dictionary, i.e change is only reflected in memory not persisted in the volume info file Therefore incase of glusterd restart this data can be lost. Also this patch fix similar issue in ganesha_manage_export(). Change-Id: Ib843ac30adb28a70e13a9a1df57020ef2f3db8a4 BUG: 1349270 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Reviewed-on: http://review.gluster.org/14778 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* feature/gfid-access: Fix nameless lookup on ".gfid"Kotresh HR2016-06-221-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: In geo-replication, if the data copied from .snaps directory to the master, the first set of copy after uss is enabled doesn't get sync to slave. Cause: Enabling uss results in graph switch. So when the lookup comes on "0x00...0d/gfid1" on new graph, ("0x00...0d' being the gfid of virtual directory ".gfid"), it fails as gfid-access xlator doesn't handle it. Fix: Handle nameless lookup on ".gfid" in gfid-access xlator. Change-Id: I32be0064e8fd58068646dbf662432f4a3da14e77 BUG: 1348904 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/14773 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* Fix opRet value for volume info --xml call on non-existent volumeSamikshan Bairagya2016-06-211-7/+16
| | | | | | | | | | | | | | | | | | The opRet field was being assigned to 0 in the XML output when a gluster volume info --xml call is made on a non-existent volume. This change assigns a value of -1 to opRet for volume info calls for non-existent volumes. Other fields like opErrno and opErrstr are also assigned relevant values Change-Id: I3920c602328f74252c87bb521f5a43d4bdc7d44d BUG: 1321836 Signed-off-by: Samikshan Bairagya <samikshan@gmail.com> Reviewed-on: http://review.gluster.org/13843 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: darshan n <dnarayan@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* cluster/dht: initialize cbk before attempting inode-linkRaghavendra G2016-06-171-3/+3
| | | | | | | | | | | | | | | | | Otherwise inode-link failures in selfheal codepath will result in a crash. Change-Id: I9061629ae9d1eb1ac945af5f448d0d8b397a5022 BUG: 1345748 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/14707 Reviewed-by: N Balachandran <nbalacha@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Poornima G <pgurusid@redhat.com> Reviewed-by: Susant Palai <spalai@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* glusterd: unsafe strcat, strncat use in glusterd_op_stage_gsync_create()Kaleb S KEITHLEY2016-06-161-19/+13
| | | | | | | | | | | | | | SuSE build system post-compile analysis aborts pkg build due to unsafe strcat, strncat usage. Change-Id: I52ac41e1172d0c1e5695a91b9f731cc9e7de4db4 BUG: 1347354 Signed-off-by: Kaleb S KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/14745 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* io-stats: Fix io-stat dump to dump at all levelsShyam2016-06-152-13/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous commit to fix the bug, where io-stat-dump was overwriting the dump file when the client and a brick was on the same host, failed to consider the existing behaviour where io-stats can help generate closely correlated set of stats across clients and bricks, by triggering the dump using the same command. This was introduced in commit: 0facb11220aea20a6573b656785922219c9650cf Further, by limiting the first io-stat to unwind the dump request, there is no way to trigger other io-stat xlators in the stack to dump their stat information. This bug hence is being fixed by this commit keeping the following in mind, - We need to trigger io-stat-dump for all instances in the graph when this attr is set - We need to write the output to different files, so that they do not overwrite each others data - We need to prevent this xattr from being set on the path that is used to trigger the io-stat-dump information Change-Id: I31ec380f0d85e10313a9d7b977da0e1ec74638a6 BUG: 1322825 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/14552 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Ravishankar N <ravishankar@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/dht: Fix unsafe iteration on inode->fd_listXavier Hernandez2016-06-152-17/+71
| | | | | | | | | | | | | | | | | | | | | When DHT traverses the inode->fd_list, it does that in an unsafe way that can generate races with fd_unref() called from other threads. This patch fixes this problem taking the inode->lock and adding a reference to the fd while it's being used outside of the mutex protected region. A minor change in storage/posix has been done to also access the inode->fd_list in a safe way. Change-Id: I10d469ca6a8f76e950a8c9779ae9c8b70f88ef93 BUG: 1344340 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/14682 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* glusterd/geo-rep: remove unused variablesSaravanakumar Arumugam2016-06-141-6/+1
| | | | | | | | | | | | | | cleanup - remove unused variables, fix return value. Change-Id: I77b663bdae0ffe7667486f5f4e2355ef9757f960 BUG: 1346211 Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com> Reviewed-on: http://review.gluster.org/14728 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* performance/decompounder: Add graph for decompounder xlatorAshish Pandey2016-06-142-9/+56
| | | | | | | | | | | | | | | | | | | | | This xlator will fall below protocol/server. This is mandatory xlator without any options. Observed that the callback for decompounder translator was not added which was causing volume start to fail. Added cbks for decompounder. Change-Id: I3e16a566376338d9c6d36d6fbc7bf295fda9f3a6 BUG: 1335019 Signed-off-by: Ashish Pandey <aspandey@redhat.com> Reviewed-on: http://review.gluster.org/13968 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Anuradha Talur <atalur@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* cluster/ec: Unlock stale locks when inodelk/entrylk/lk failsPranith Kumar K2016-06-141-6/+6
| | | | | | | | | | | | | | | | Thanks to Rafi for hinting a while back that this kind of problem he saw once. I didn't think the theory was valid. Could have caught it earlier if I had tested his theory. Change-Id: Iac6ffcdba2950aa6f8cf94f8994adeed6e6a9c9b BUG: 1344836 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/14703 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: mohammed rafi kc <rkavunga@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* glusterd/snapshot: free resource from the owner of memoryMohammed Rafi KC2016-06-141-22/+7
| | | | | | | | | | | | | | | | We are freeing memory from a function which is not the owner of the memory. Free should happen from the owner of resources. Change-Id: If8772ba27f9eb65881dcdddde8d7dc431c1c0ee8 BUG: 1341796 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/14634 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* quota : rectify quota-deem-statfs default settingsManikandan Selvaganesh2016-06-131-3/+3
| | | | | | | | | | | Change-Id: I75c47c4a0f0eb898b5e32efe7f0a6a558d7f8007 BUG: 1345846 Signed-off-by: Manikandan Selvaganesh <mselvaga@redhat.com> Reviewed-on: http://review.gluster.org/14708 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/ec: Fix race in timer cancellationXavier Hernandez2016-06-131-15/+56
| | | | | | | | | | | | | | | | | | | A race in timer cancellation for delayed unlock could cause a crash if the cancelling thread fails to cancel the timer because it has already been fired but not executed, and the callback is scheduled out of the CPU, delaying it until the thread has released important resources needed by the callback. This patch improves the handling of this case to make it robust. Change-Id: I5c8a8c6610c5136f71b938aa78b5878ba05238d4 BUG: 1345855 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/14712 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* cluster/ec: Fix invalid __fd_unref() callXavier Hernandez2016-06-131-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | __fd_unref() doesn't do any cleanup, so it cannot be called to release fd references, specially if it's the last reference. The code has been changed to avoid a call to this function. In the previous version we always tried to keep the newest fd in the ec_lock_t structure. However this is not necessary. We'll always keep one reference to an open file on the same inode. It's irrelevant if the reference is new or old. The function __fd_unref() has also been removed from fd.h to avoid being used in the future since it's useless as it's defined now. Change-Id: Ia728777fc8e464758d5ea4d3bf020f0603919039 BUG: 1344396 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/14683 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ashish Pandey <aspandey@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* features/worm: fixed issue with write FOP for normal fileskarthik-us2016-06-132-4/+5
| | | | | | | | | | | | | | | | | The write FOPs on normal files were being blocked after the recent change. It should fail only for the WORM and WORM-Retained files, and should pass for a normal file. Using auto-commit period to check for dormant files instead of retention period. Change-Id: I30f82d4de2ea2c59c1eb7b4449ba6a60e568cfd5 BUG: 1342259 Signed-off-by: karthik-us <ksubrahm@redhat.com> Reviewed-on: http://review.gluster.org/14619 Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Joseph Fernandes Reviewed-by: Manikandan Selvaganesh <mselvaga@redhat.com>
* cluster/tier: fix detach tier error messageDan Lambright2016-06-131-14/+15
| | | | | | | | | | | | | | | Do not refer to obsolete syntax when throwing an error on detach tier. Throw a warning if the user tries to commit a detach tier before starting (or completing) the decommission process. Change-Id: I9df28c1b42b8ab1790e1db5c0cd518432146c1d1 BUG: 1337227 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/14438 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* afr: Consider ENOSPC and EDQUOT as symmetric errorsRavishankar N2016-06-121-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Since commit 8eaa3506ead4f11b81b146a9e56575c79f3aad7b, in replica 3, if a brick is down and a create fails on the other 2 brick with EDQUOT, we consider it an unsymmetric error and hence do not do post-op. So the dirty xattr remains set on the parent dir, leading to conservative merges during heal when all bricks are up. i.e. a file deleted on the source might re-appear after heal. Fix: Consider ENOSPC and EDQUOT as symmetric errors since there is no possibility of partial inode or entry modification operations possible when quota is enabled. IOW, if quota reports EDQUOT, the no. of bytes written (or not written) will be the same on all bricks of the replica. Likewise, the entry operation (create, mkdir...) will either succeed or not succeed on all bricks. Change-Id: Iacb1108e9ef4a918e36242fb4a957455133744e9 BUG: 1341650 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/14604 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Atin Mukherjee <amukherj@redhat.com>
* tiering/ctr: Fix strcpy coverityAvra Sengupta2016-06-101-2/+3
| | | | | | | | | | | | | Change-Id: I6cffba3e09a023f105dbf2975cc9a3ae1a965c31 BUG: 1344686 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/14696 Reviewed-by: mohammed rafi kc <rkavunga@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: N Balachandran <nbalacha@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com>
* protocol: Add framework to send transaction id with recallPoornima G2016-06-102-2/+18
| | | | | | | | | | | | | | | | | | | | | | | | | Issue: The upcall(cache invalidation/recall) event is sent from the bricks to clients. In AFR/EC setup, it can so happen that all the bricks will send the upcall for the same event, and if AFR/EC doesn't filter out these duplicate notifications, the logic above cluster xlators can fail. Solution: Use transaction id to filter out duplicate notifications. This patch adds framework for duplicate notifications. AFR/EC can build up on this patch for deduping the notifications Change-Id: I66b08e63b8799bc5932f2b2545376138a5701168 BUG: 1319992 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/14647 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/ec: Pass xdata to dht in case of errorAshish Pandey2016-06-101-4/+6
| | | | | | | | | | | | | | | | | | | | | | | Problem: In case of mkdir failure, dht expects error information so that it can act accordingly. Aftre adding bricks and re balance, layout gets changed. Fop "mkdir" with old layout returns EIO. EC gets this error in xdata but does not pass it back to dht. In this case dht will not be able to take corrective action. Solution: Return xdata back to dht Change-Id: I24def8038e6880607689b7b046dc6428f564c6ab BUG: 1344277 Signed-off-by: Ashish Pandey <aspandey@redhat.com> Reviewed-on: http://review.gluster.org/14679 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Atin Mukherjee <amukherj@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* glusterd: fail volume delete if one of the node is downAtin Mukherjee2016-06-103-0/+38
| | | | | | | | | | | | | | | | | Deleting a volume on a cluster where one of the node in the cluster is down is buggy since once that node comes back the resync of the same volume will happen. Till we bring in the soft delete feature tracked in http://review.gluster.org/12963 this is a safe guard to block the volume deletion. Change-Id: I9c13869c4a7e7a947f88842c6dc6f231c0eeda6c BUG: 1344407 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/14681 Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* glusterd/geo-rep: Avoid started status check if same hostSaravanakumar Arumugam2016-06-101-26/+65
| | | | | | | | | | | | | | | | | | | After carrying out add-brick, session creation is carried out again, to involve new brick in the session. This needs to be done, even if the session is in Started state. While involving slave uuid as part of a session, User is warned if session is in Started state. This check needs to be avoided if it is same slave host and session creation needs to be proceeded. Change-Id: Ic73edd5bd9e3ee55da96f5aceec0bafa14d3f3dd BUG: 1342979 Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com> Reviewed-on: http://review.gluster.org/14653 CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Aravinda VK <avishwan@redhat.com>
* libglusterfs: Negate all but O_DIRECT flag if present on anon fdsKrutika Dhananjay2016-06-091-1/+4
| | | | | | | | | | | | | | | | | | | This is to prevent any unforeseen problems that might arise due to writevs and readvs being wound with @flag parameter containing O_TRUNC or O_APPEND especially wrt translators like sharding and ec where O_TRUNC write or O_APPEND write on individual shards/fragments is not the same as O_TRUNC write or O_APPEND write as expected by the application. Change-Id: I9e5206a6ce2b1b70df61ff23b1c961cf25bf7ff9 BUG: 1342171 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/14665 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Smoke: Gluster Build System <jenkins@build.gluster.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* nfs: build exportlist with multiple groupnodesBipin Kunal2016-06-091-18/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | The EXPORT procedure of the MOUNT protocol does not correctly create structures for the 'groupnodes' in the reply. Each 'groupnode' should be a single entry in the 'nfs.rpc-auth-allow' volume option. Because the value is handled as a single string, the encoding of the groupnode->gr_name fails when the value of the volume option is longer than 255 characters. In the error case, encoding the EXPORTS reply fails, and the waiting 'showmount' command will not receive a reply and times out. Splitting the allowed entries and creating a groupnode for each one prevents the too long ->gr_name. This is following the structures for the EXPORTS reply in the MOUNT protocol more correctly as well. Note that the contents of ->gr_name is expected to be server dependent. Change-Id: Ibbabad581cc9aa00feb80fbbc851a1b10b28383d BUG: 1343286 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/14667 Smoke: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: bipin kunal <kunalbipin@gmail.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: jiffin tony Thottan <jthottan@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>