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* libglusterfs: make memory pools more thread-friendlyJeff Darcy2017-02-025-238/+375
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Early multiplexing tests revealed *massive* contention on certain pools' global locks - especially for dictionaries and secondarily for call stubs. For the thread counts that multiplexing can create, a more lock-free solution is clearly needed. Also, the current mem-pool implementation does a poor job releasing memory back to the system, artificially inflating memory usage to match whatever the worst case was since the process started. This is bad in general, but especially so for multiplexing where there are more pools and a major point of the whole exercise is to reduce memory consumption. The basic ideas for the new design are these There is one pool, globally, for each power-of-two size range. Every attempt to create a new pool within this range will instead add a reference to the existing pool. Instead of adding pools for each translator within each multiplexed brick (potentially infinite and quite possibly thousands), we allocate one set of size-based pools per *thread* (hundreds at worst). Each per-thread pool is divided into hot and cold lists. Every allocation first attempts to use the hot list, then the cold list. When objects are freed, they always go on the hot list. There is one global "pool sweeper" thread, which periodically reclaims everything in each pool's cold list and then "demotes" the current hot list to be the new cold list. For normal allocation activity, only a per-thread lock need be taken, and even that only to guard against very rare contention from the pool sweeper. When threads start and stop, a global lock must be taken to add them to the pool sweeper's list. Lock contention is therefore extremely low, and the hot/cold lists also provide good locality. A more complete explanation (of a similar earlier design) can be found here: http://www.gluster.org/pipermail/gluster-devel/2016-October/051160.html Change-Id: I5bc8a1ba57cfb553998f979a498886e0d006e665 BUG: 1385758 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: https://review.gluster.org/15645 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> 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: Shyamsundar Ranganathan <srangana@redhat.com>
* extras: glusterfs-mode.el has incorrect FSF addressKaleb S. KEITHLEY2017-02-021-112/+113
| | | | | | | | | | | | | | found by rpmlint on OpenSuSE Build Service And convert DOS crlf to Unix lf, also found by SuSE rpmlint Change-Id: I0329e6682333ead21ca1b76a3b00cb863c2af51b Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: https://review.gluster.org/16500 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: Vijay Bellur <vbellur@redhat.com>
* glusterd: double-check whether brick is alive for statsJeff Darcy2017-02-021-3/+14
| | | | | | | | | | | | | | | | | | | | | With multiplexing, our tests detach bricks from their host processes without glusterd being involved. Thus, when we ask glusterd to fetch profile info, it will try to fetch from a brick that's actually not present any more. While it can handle the process being dead and its RPC connection being closed, it barfs if it gets a negative response from a live brick process. This is not a problem in normal use, because the brick can't disappear without glusterd seeing it. The fix is to double check that the brick is actually running, by looking for its pidfile which the tests *do* clean up as part of killing a brick. Change-Id: I098465b175ecf23538bd7207357c752a2bba8f4e BUG: 1385758 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: https://review.gluster.org/16509 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>
* glusterfsd/gf_attach: Remove unused varibaleAnoop C S2017-02-021-2/+0
| | | | | | | | | | | Change-Id: I1f2ae36c91bd0880a7f15aa73b7e0f462c7e7952 BUG: 1198849 Signed-off-by: Anoop C S <anoopcs@redhat.com> Reviewed-on: https://review.gluster.org/16517 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/ec: fix selinux issues with mmap()Xavier Hernandez2017-02-0210-94/+272
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EC uses mmap() to create a memory area for the dynamic code. Since the code is created on the fly and executed when needed, this region of memory needs to have write and execution privileges. This combination is not allowed by default by selinux. To solve the problem a file is used as a backend storage for the dynamic code and it's mapped into two distinct memory regions, one with write access and the other one with execution access. This approach is the recommended way to create dynamic code by a program in a more secure way, and selinux allows it. Additionally selinux requires that the backend file be stored in a directory marked with type bin_t to be able to map it in an executable area. To satisfy this condition, GLUSTERFS_LIBEXECDIR has been used. This fix also changes the error check for mmap(), that was done incorrectly (it checked against NULL instead of MAP_FAILED), and it also correctly propagates the error codes and makes sure they aren't silently ignored. Change-Id: I71c2f88be4e4d795b6cfff96ab3799c362c54291 BUG: 1402661 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: https://review.gluster.org/16405 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/write-behind: access stub only if available duringRaghavendra G2017-02-023-12/+61
| | | | | | | | | | | | | statedump Change-Id: Ia5dd718458a5e32138012f81f014d13fc6b28be2 BUG: 1415115 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: https://review.gluster.org/16440 Reviewed-by: N Balachandran <nbalacha@redhat.com> 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>
* libglusterfs+transport+io-threads: fix 256KB stack abuseJeff Darcy2017-02-015-23/+48
| | | | | | | | | | | | | | | | | Some functions were allocating 64K booleans, which are (crazily) mapped to 4-byte ints, for a total of 256KB per call. Changed to use bitfields instead, so usage is now only 8KB per call. This was the impediment to changing the io-threads stack size, so that has been adjusted too. Change-Id: I8781c4f2c8f2b830f4535e366995fac8dd0a8653 BUG: 1418095 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: https://review.gluster.org/15745 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: N Balachandran <nbalacha@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
* rpc/socket.c : Bonnie++ hangs during rewrites in ganesha + SSLMohit Agrawal2017-02-011-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Bonnie++ rewrite operation hangs in ganesha + SSL environment Solution: Bonnie++ hangs during execution of rewrite operation in ganesha + SSL environment.It was hanged due to blocking on poll call in ssl_do because no POLLOUT event was getting on socket. Socket is not getting POLLOUT event because all other threads are waiting to get lock and lock is not released ssl_do because it is not getting any event on poll.To correct it update the condition in ssl_do as same in getting error SSL_ERROR_WANT_READ. Test: To test the patch followed below procedure 1) Setup 2X2 Ganesha + SSL environment. 2) Run bonnie from 3 nfs client parallely 3) After run "Rewwrite operation" by bonnie it is hanged. 4) After apply the patch it is not hanged. BUG: 1418213 Change-Id: I5985cbbc4cfdac5d287268d791e31c274abc3c8d Signed-off-by: Mohit Agrawal <moagrawa@redhat.com> Reviewed-on: https://review.gluster.org/16501 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* packaging: python/python2(/python3) cleanup, againKaleb S. KEITHLEY2017-01-311-3/+3
| | | | | | | | | | | | | missed a couple things in the previous patch Change-Id: I0ebd5c431abd9af5e1b680ad52318219edb4bfa7 BUG: 1414902 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: https://review.gluster.org/16486 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: Niels de Vos <ndevos@redhat.com>
* glusterd: fix compiler warning (unused var) if bd xlator is not enabledMichael Adam2017-01-311-2/+2
| | | | | | | | | | | | | BUG: 1402254 Change-Id: Id4450c5e00e9eb6d63dcdf65b0a13bc535a32d98 Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-on: https://review.gluster.org/16049 Tested-by: Atin Mukherjee <amukherj@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* refcount: typecast function for calling on freeNiels de Vos2017-01-316-26/+10
| | | | | | | | | | | | | | | | | | | All of the functions called to free the refcounted structure are doing a typecast from (void*) to their own type taht is being free'd. This really is not needed and the refcount interface is made a little simpler without the requirement of typecasting. With this small improvement in the API, all callers are updated too. Change-Id: I32473b6d1799f62861d4b2d78ea30c09e6c80ab1 BUG: 1416889 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: https://review.gluster.org/16471 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* core: run many bricks within one glusterfsd processJeff Darcy2017-01-30100-667/+2335
| | | | | | | | | | | | | | | | | | | | | | | This patch adds support for multiple brick translator stacks running in a single brick server process. This reduces our per-brick memory usage by approximately 3x, and our appetite for TCP ports even more. It also creates potential to avoid process/thread thrashing, and to improve QoS by scheduling more carefully across the bricks, but realizing that potential will require further work. Multiplexing is controlled by the "cluster.brick-multiplex" global option. By default it's off, and bricks are started in separate processes as before. If multiplexing is enabled, then *compatible* bricks (mostly those with the same transport options) will be started in the same process. Change-Id: I45059454e51d6f4cbb29a4953359c09a408695cb BUG: 1385758 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: https://review.gluster.org/14763 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: Vijay Bellur <vbellur@redhat.com>
* features/changelog: fix a bug in changelog_rpc_server_destroyRyan Ding2017-01-301-0/+1
| | | | | | | | | | | | | | | | | the programe unregister loop never get moved forward, it's a dead loop. to resolve it, add progs++ in the loop. Change-Id: Ib25ded10b3ce808e2fb57b13d767833f24cf01a7 BUG: 1369393 Signed-off-by: Ryan Ding <ryan.ding@open-fs.com> Reviewed-on: https://review.gluster.org/15292 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Prashanth Pai <ppai@redhat.com> Tested-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> 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>
* features/bit-rot-stub: use the correct spelling of quarantine for bad objectsRaghavendra Bhat2017-01-306-14/+29
| | | | | | | | | | | | | | | | container The directory for containing the list of bad objects was named "quanrantine" instead of "quarantine" Change-Id: I8c20381ac637201d9d1a224f5223e8dfbed53f1e BUG: 1401571 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: https://review.gluster.org/16027 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: Kotresh HR <khiremat@redhat.com>
* tests: Mark tests/bitrot/bug-1373520.t badAtin Mukherjee2017-01-301-0/+4
| | | | | | | | | | | | | Change-Id: Ief8014dd9faa012c7f3c5347f597a155873a8f92 BUG: 1417540 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: https://review.gluster.org/16479 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: N Balachandran <nbalacha@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* gNFS : pass proper gfid for nfs_setattr() in nfs3svc_create_cbk()Jiffin Tony Thottan2017-01-301-1/+1
| | | | | | | | | | | | | | | | | | | | | The nfs3svc_create_cbk() takes "gfid" from inode variable which it received, not from inode which it performed linking to nfs_setattr(). There is possiblity that the inode passed into this function holds NULL gfid if there are some parallel operation happening on the same file. Similar issue is mentioned in https://bugzilla.redhat.com/show_bug.cgi?id=1413971 Thanks pranith for proposing the fix Change-Id: I1a0ff4f02b483416f19f4f064c306c2cad5d9d8b BUG: 1413971 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Reviewed-on: https://review.gluster.org/16421 Reviewed-by: soumya k <skoduri@redhat.com> 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: Niels de Vos <ndevos@redhat.com>
* tools/glusterfind: delete temporary folderMilind Changire2017-01-301-2/+2
| | | | | | | | | | | | | | | | | | | Problem: Run specific temporary folder created under /usr/var/lib/misc/glusterfsd/glusterfind/<session>/<volume>/ remains undeleted. Solution: Delete the temporary folder from all nodes. Change-Id: I0edaf868aebb01b15c489434bbb26fe853351384 BUG: 1413526 Signed-off-by: Milind Changire <mchangir@redhat.com> Reviewed-on: https://review.gluster.org/16416 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>
* cluster/ec: Fix cthon failures observed with ec volumesPranith Kumar K2017-01-291-11/+26
| | | | | | | | | | | | | | | | Since EC already winds one write after other there is no need to align application fcntl locks with ec blocks. Also added this locking to be done as a transaction to prevent partial upgrade/downgrade of locks happening. BUG: 1410425 Change-Id: I7ce8955c2174f62b11e5cb16140e30ff0f7c4c31 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: https://review.gluster.org/16445 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* glusterd: regenerate volfiles on op-version bump upAtin Mukherjee2017-01-271-28/+59
| | | | | | | | | | | | Change-Id: I2fe7a3ebea19492d52253ad5a1fdd67ac95c71c8 BUG: 1416251 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: https://review.gluster.org/16455 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Prashanth Pai <ppai@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* cluster/ec: Change level of messages to DEBUGAshish Pandey2017-01-271-2/+2
| | | | | | | | | | | | | | | | Heal failed or passed should not be logged as warning. These can be observed from heal info if the heal is happening or not. If we require to debug a case where heal is not happening, we can set the level to DEBUG. Change-Id: I347665c8c8b6223bb08a9f3dd5643a10ddc3b93e BUG: 1417050 Signed-off-by: Ashish Pandey <aspandey@redhat.com> Reviewed-on: https://review.gluster.org/16473 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* glusterd: daemon restart logic should adhere server side quorumAtin Mukherjee2017-01-272-6/+64
| | | | | | | | | | | | | | | | Just like brick processes, other daemon services should also follow the same logic of quorum checks to see if a particular service needs to come up if glusterd is restarted or the incoming friend add/update request is received (in glusterd_restart_bricks () function) Change-Id: I54a1fbdaa1571cc45eed627181b81463fead47a3 BUG: 1383893 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: https://review.gluster.org/15626 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: Prashanth Pai <ppai@redhat.com>
* performance/write-behind: do __wb_request_unref within locksRaghavendra G2017-01-261-3/+2
| | | | | | | | | | | | | | | | | Since __wb_request_unref can remove the request from various lists, calling it without holding wb_inode->lock results in corruptions when other threads simultaneously try to access the lists this request is part of. Thanks to "Nithya Balachandran" <nbalacha@redhat.com> for pointing out the bug. Change-Id: I78fb6433c2e212500d07780f7b45c5a0e2bf9209 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: https://review.gluster.org/16464 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>
* cluster/ec: mark ec-background-heal.t as badXavier Hernandez2017-01-261-0/+2
| | | | | | | | | | | Change-Id: I0c54c62cdeb40b983da2392296762471a5474652 BUG: 1416689 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: https://review.gluster.org/16470 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* tests/include : EXPECT_WITHIN takes full time even if expression matchesAshish Pandey2017-01-251-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: For all the tests using get_pending_heal_count, EXPECT_WITHIN is taking full time given to it even if the heal count matches with expected value. Solution: RC - In most of the tests, to check heal count, wildcards are being used. In EXPECT_WITHIN, in if condition, when we use it in double quotes (" "), it gives string with wildcards which does not match with the output of get_pending_heal_count. For example, (0 =~ ^0$). So, "while" loop was running for full time and at the end, after coming out of loop, in next if condition it was matching with the expression without quotes. That is why it was passing. Remove double quotes in "if condition" in EXPECT_WITHIN and match as we are matching it in test_expect_footer. Change-Id: Ia161594774d05b9b888efb2f7ed1950590d8ac1b BUG: 1412549 Signed-off-by: Ashish Pandey <aspandey@redhat.com> Reviewed-on: https://review.gluster.org/16382 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
* gfapi: create statedump when glusterd requests itNiels de Vos2017-01-243-7/+162
| | | | | | | | | | | | | | | | | | | | | When GlusterD sends the STATEDUMP procedure to the libgfapi client, the client checks if it matches the PID that should take the statedump. If so, it will do a statedump for the glfs_t that is connected to this mgmt connection. BUG: 1169302 Change-Id: I70d6a1f4f19d525377aebc8fa57f51e513b92d84 See-also: http://review.gluster.org/9228 Signed-off-by: Poornima G <pgurusid@redhat.com> [ndevos: separated patch from 9228] Reviewed-on: https://review.gluster.org/16415 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Niels de Vos <ndevos@redhat.com> 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: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Prashanth Pai <ppai@redhat.com>
* Readdir-ahead : Honor readdir-optimise option of dhtPoornima G2017-01-244-1/+33
| | | | | | | | | | | Change-Id: I9c5e65b32e316e6a2fc7e1f5c79fce79386b78e2 BUG: 1401812 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: https://review.gluster.org/16071 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: Raghavendra G <rgowdapp@redhat.com>
* glusterd: add a cli command to trigger a statedump on a clientPoornima G2017-01-2315-13/+239
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this, we will be able to trigger statedumps on remote Gluster clients, mainly targetted for applications using libgfapi. Design: SIGUSR signal is the most comman way of taking a statedump in Gluster. But it cannot be used for libgfapi based processes, as the process loading the library might have already consumed SIGUSR signal. Hence going by the command way. One has to issue a Gluster command to initiate a statedump on the libgfapi based client. The command takes hostname and PID as an argument. All the glusterds in the cluster, check if they are connected to the specified hostname, and send an RPC request to all the connected clients from that hostname (via the mgmt connection). URL: http://review.gluster.org/16357 Change-Id: Icbe4d2f026b32a2c7d5535e1bfb2cdaaff042e91 BUG: 1169302 Signed-off-by: Poornima G <pgurusid@redhat.com> [ndevos: minor fixes and split patch in smaller pieces] Reviewed-on: https://review.gluster.org/9228 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Niels de Vos <ndevos@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Samikshan Bairagya <samikshan@gmail.com>
* packaging: python2 cleanupKaleb S. KEITHLEY2017-01-231-24/+33
| | | | | | | | | | | | | | | | | Update to current python2 (vs. python3) guidelines. While doing package review of new python-glusterfs-api we were reminded that we should update the glusterfs.spec(.in) accordingly. Change-Id: I67c88f209e803425c5ef70cb8d3e7ffd8e396c7f BUG: 1414902 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: https://review.gluster.org/16428 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Niels de Vos <ndevos@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* glusterd, rda: If parallel readdir is enabled, split the cache limitPoornima G2017-01-233-2/+78
| | | | | | | | | | | | | | | | | | | With patch http://review.gluster.org/#/c/16072/ readdir-ahead can be loaded as a child of dht. i.e. there can be more than one instance of readdir-ahead in client process. In this case the rda-cache-size should be split among all the readdir-ahead instances. Also the value of rda-request-size is considered as the minimum cache size of any readdir-ahead instance. Change-Id: Iea2fe6d4c46adc09dd2e9a252332a0fe3005f2b9 BUG: 1401812 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: https://review.gluster.org/16424 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: Kaushal M <kaushal@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* md-cache: Cache security.ima xattrsPoornima G2017-01-204-24/+128
| | | | | | | | | | | | | | | | From kernel version 3.X or greater, creating of a file results in removexattr call on security.ima xattr. But this xattr is not set on the file unless IMA feature is active. With this patch, removxattr call returns ENODATA if it is not found in the cache. Change-Id: I8136096598a983aebc09901945eba1db1b2f93c9 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/16296 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>
* cluster/ec: Do not start heal on good file while IO is going onAshish Pandey2017-01-202-4/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Write on a file has been slowed down significantly after http://review.gluster.org/#/c/13733/ RC : When update fop starts on a file, it sets dirty flag at the start and remove it at the end which make an index entry in indices/xattrop. During IO, SHD scans this and finds out an index and starts heal even if all the fragments are healthy and up tp date. This heal takes inodelk for different types of heal. If the IO is for long time this will happen in every 60 seconds. Due to this extra, unneccessary locking, IO gets slowed down. Solution: Before starting any type of heal check if file needs heal or not. Change-Id: Ib9519a43e7e4b2565d3f3153f9ca0fb92174fe51 BUG: 1409191 Signed-off-by: Ashish Pandey <aspandey@redhat.com> Reviewed-on: http://review.gluster.org/16377 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: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
* features/trash: Create trash directory only when it is enabledJiffin Tony Thottan2017-01-204-401/+496
| | | | | | | | | | | | | | | | | | | | | Previously trash directory was being created as part of volume start operation. And also the user/admin could not delete this directory from volume even if it is not needed. This patch will fix the same. From now onwards creation and enforcement on trash directory will come into pictrure only when trash translator is enabled. Similarly exact same behaviour is reflected on internal-op directory inside trash directory. Change-Id: I3e58316a7b299a691885e458c960438bec2220fb BUG: 1264849 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Reviewed-on: http://review.gluster.org/12256 Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: Anoop C S <anoopcs@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Anoop C S <anoopcs@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* dht/cluster: add logs to fix-layout code pathSusant Palai2017-01-203-49/+158
| | | | | | | | | | | | | | Currently there is no helpful log in fix-layout code path. Adding the logs to be helpful for debugging fix-layout failures. BUG: 1414782 Change-Id: I61c29ceedcaa2e235fa7be99866709d6ca6de3ae Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: http://review.gluster.org/16040 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>
* debug/trace: Print entries' iatts in readdirp cbkKrutika Dhananjay2017-01-201-2/+16
| | | | | | | | | | Change-Id: Iab2b4fa44b22aad0745e9f9249d8adba0acd7de1 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/16432 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: Raghavendra G <rgowdapp@redhat.com>
* cluster/disperse: Do not log fop failed for lockless fopsAshish Pandey2017-01-191-12/+13
| | | | | | | | | | | | | | | | | | | | Problem: Operation failed messages are getting logged based on the callbacks of lockless fop's. If a fop does not take a lock, it is possible that it will get some out of sync xattr, iatts. We can not depend on these callback to psay that the fop has failed. Solution: Print failed messages only for locked fops. However, heal would still be triggered. Change-Id: I4427402c8c944c23f16073613caa03ea788bead3 BUG: 1414287 Signed-off-by: Ashish Pandey <aspandey@redhat.com> Reviewed-on: http://review.gluster.org/16435 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> 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>
* ganesha/glusterd : create 'ganesha.conf' symlink for nodes in ganesha clusterJiffin Tony Thottan2017-01-191-9/+10
| | | | | | | | | | | | Change-Id: I27503558da176f0b1a1f0953a7e7ebe86976608d BUG: 1401877 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Reviewed-on: http://review.gluster.org/16041 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>
* dht/rebalance Estimate time to complete rebalanceN Balachandran2017-01-195-8/+172
| | | | | | | | | | | | | | The estimates will be logged to the rebalance log on running gluster v rebalance <vol> status Change-Id: I9d51b139cd4c8dfde1ff2c2050720ae606c13fc6 BUG: 1396004 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: http://review.gluster.org/15893 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>
* cli: keep 'gluster volume status detail' consistentXavier Hernandez2017-01-194-125/+157
| | | | | | | | | | | | | | | | | | | | | | | | | | The output of the command 'gluster volume status <volname> detail' is not consistent between operating systems. On linux hosts it shows the file system type, the device name, mount options and inode size of each brick. However the same command executed on a FreeBSD host doesn't show all this information, even for bricks stored on a linux. Additionally, for hosts other than linux, this information is shown as 'N/A' many times. This has been fixed to show as much information as it can be retrieved from the operating system. The file contrib/mount/mntent.c has been mostly rewriten because it contained many errors that caused mount information to not be retrieved on some operating systems. Change-Id: Icb6e19e8af6ec82255e7792ad71914ef679fc316 BUG: 1411334 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/16371 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> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* gluster: Typos in logs and commentsN Balachandran2017-01-195-9/+9
| | | | | | | | | | | | | | | Replaced 'recieve' with 'receive'. Change-Id: I4c1c9147db5437feb81e4c83ed074440aaa28e07 BUG: 1414645 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: http://review.gluster.org/16429 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Manikandan Selvaganesh <manikandancs333@gmail.com> Tested-by: Manikandan Selvaganesh <manikandancs333@gmail.com> 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>
* gfapi: add API to trigger events for debugging and troubleshootingNiels de Vos2017-01-197-5/+188
| | | | | | | | | | | | | | | | | | | | | | | | | | Introduce glfs_sysrq() as a generic API for triggering debug and troubleshoot events. This interface will be used by the feature to get statedumps for applications using libgfapi. The current events that can be requested through this API are: - 'h'elp: log a mesage with all supported events - 's'tatedump: trigger a statedump for the passed glfs_t In future, this API can be used by a CLI to trigger statedumps from storage servers. At the moment it is limited to take statedumps, but it is extensible to set the log-level, clear caches, force reconnects and much more. BUG: 1169302 Change-Id: I18858359a3957870cea5139c79efe1365a15a992 Original-author: Poornima G <pgurusid@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/16414 Reviewed-by: Prashanth Pai <ppai@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: Kaleb KEITHLEY <kkeithle@redhat.com>
* Fixes upgrade issue in quota.confSanoj Unnikrishnan2017-01-191-7/+10
| | | | | | | | | | | | | | | | | When an op-version bump up is done the glusterd_store_quota_config upgrades the quota conf file, although overwriting the same later which leaves out all gfid entries. While this is warranted for enable opcode, for upgrade we need to retain gfids. So for upgrade opcode, we return once the upgrade is done. Change-Id: I2b38c6022d74b4a14dc07432651a51cc39ad5120 BUG: 1414346 Signed-off-by: Sanoj Unnikrishnan <sunnikri@redhat.com> Reviewed-on: http://review.gluster.org/16425 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>
* features/changelog: Fix htime xattr during brick crashv3.11devKotresh HR2017-01-191-1/+30
| | | | | | | | | | | | | | | | | | | | | | The htime file contains the path of all the changelogs that is rolloved over till now. It also maintains xattr which tracks the latest changelog file rolloved over and the number of changelogs. The path and and xattr update happens in two different system calls. If the brick is crashed between them, the xattr value becomes stale and can lead to the failure of gf_history_changelog. To identify this, the total number of changelogs is being calculated based on htime file size and the record length. The above value is used in case of mismatch. Change-Id: Ia1c3efcfda7b74227805bb2eb933c9bd4305000b BUG: 1413967 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/16420 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Aravinda VK <avishwan@redhat.com>
* glusterd: bypass add-brick validation with forceAtin Mukherjee2017-01-183-5/+6
| | | | | | | | | | | | | | | | | | | | | Commit c916a2f added a validation to restrict add-brick operation if a replica configuration is changed and any of the bricks belonging to the volume is down. However we should bypass this validation with a force option if users really want to have add-brick to go through at the sake of the corner cases of data loss issue. The original problem of add-brick getting failed when layout is not set will still be a problem with a force option as the issue has to be taken care in the DHT layer. Change-Id: I0ed3df91ea712f77674eb8afc6fdfa577f25a7bb BUG: 1406411 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/16358 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>
* inode: Add per xlator ref count for inodePoornima G2017-01-183-16/+67
| | | | | | | | | | | | | | | | | Debugging inode ref leaks is very difficult as there is no info except for the ref count on the inode. Hence this patch is first step towards debugging inode ref leaks. With this patch, in the statedump we get additional info that tells the ref count taken by each xlator on the inode. Change-Id: I7802f7e7b13c04eb4d41fdf52d5469fd2c2a185a BUG: 1325531 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/13736 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> Smoke: Gluster Build System <jenkins@build.gluster.org>
* geo-rep: Separate slave mount logs for each connectionKotresh HR2017-01-185-7/+27
| | | | | | | | | | | | | | | | | | | | | Geo-rep worker mounts the slave volume on the slave node. If multiple worker connects to same slave node, all workers share the same mount log file. This is very difficult to debug as logs are cluttered from different mounts. Hence creating separate mount log file for each connection from worker. Each connection from worker is identified uniquely using 'mastervol uuid', 'master host', 'master brickpath', 'salve vol'. The log file name will be combination of the above. Change-Id: I67871dc8e8ea5864e2ad55e2a82063be0138bf0c BUG: 1412689 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/16384 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>
* fuse: limit fusermount fallback to EPERM casesCsaba Henk2017-01-171-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two mount mechanims for fuse: 1) Call mount(2) syscall directly -- implemented by fuse_mount_sys 2) Call out to fusermount(1) helper utilty to do the mount -- implemented by fuse_mount_fusermount [Note: both libfuse and glusterfs ships a variant of this helper utility; named, respectively, fusermount and fusermount-glusterfs. The two has diverged, and are not compatible at the moment.] The intended use of 1) is privileged mounting, ie. when root is invoking the glusterfs client. (It cannot work for non-privileged users as the kernel enforces privilege for mount(2), more precisely, caller context needs CAP_SYS_ADMIN, see capabilities(7).) The intended use of 2) is unprivileged mountig, ie. when the glusterfs client is invoked by an unprivileged user. The helper utility is a setuid binary, so it can perform mount(2) on behalf of the user. The main mount routine, gf_fuse_mount, calls fuse_mount_sys first, and if that fails, tries also with fuse_mount_fusermount. This is what we call "fusermount fallback". However, in the light of the above remarks about intended use, this logic should apply if the fuse_mount_fusermount fails because of a privilege shortage, ie. with error "Operation not permitted" (errno EPERM). So far the fallback was unconditional (masking bugs of fuser_mount_sys, as it happens in referred BUG). Now we add the "errno == EPERM" condition. BUG: 1297182 Change-Id: Ia89d975d1e27fcfa5ab2036ba546aa8fa0d2d1b0 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.org/15766 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>
* glusterd: Change the volfile to have readdir-ahead as a childPoornima G2017-01-174-18/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | of dht As mentioned in feature page http://review.gluster.org/#/c/16090/ readdir-ahead will be optionally placed below dht. There are two options: 1. performance.readdir-ahead 2. performance.parallel-readdir If only option is enabled, then readdir ahead is placed at its original place as an ancestor of dht. If both the options 1 and 2 are enabled then readdir ahead is placed as a child of dht. Also changes have been made to retain the rebalance, quotad, snapd vol files to remain unchanged. Change-Id: I0adf0b476fcbf91251f5a2fee2241786a3d8255a BUG: 1401812 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/16072 Reviewed-by: Raghavendra G <rgowdapp@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>
* storhaug HA: first step, remove resource agents and setup scriptKaleb S. KEITHLEY2017-01-179-1779/+8
| | | | | | | | | | | | | | | | resource agents and setup script(s) are now in storhaug This is a phased switch-over to storhaug. Ultimately all components here should be (re)moved to the storhaug project and its packages. But for now some will linger here. Change-Id: Ied3956972b14b14d8a76e22c583b1fe25869f8e7 BUG: 1410843 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/16349 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>
* fuse: Fix a possible resource leak under GF_SOLARIS_HOST_OSSaurabh Badhwar2017-01-171-1/+3
| | | | | | | | | | | | | | in fuse-helpers.c Change-Id: Ie367a6dec2a0d5848631b19ebbe39ceafa954a60 BUG: 1412918 Signed-off-by: Saurabh Badhwar <sbsaurabhbadhwar9@gmail.com> Reviewed-on: http://review.gluster.org/16395 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Saravanakumar Arumugam <sarumuga@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* tier : Tier as a servicehari gowtham2017-01-1647-270/+3437
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tierd is implemented by separating from rebalance process. The commands affected: 1) Attach tier will trigger this process instead of old one 2) tier start and tier start force will also trigger this process. 3) volume status [tier] will show tier daemon as a process instead of task and normal tier status and tier detach status works. 4) tier stop implemented. 5) detach tier implemented separately along with new detach tier status 6) volume tier volname status will work using the changes. 7) volume set works This patch has separated the tier translator from the legacy DHT rebalance code. It now sends the RPCs from the CLI to glusterd separate to the DHT rebalance code. The daemon is now a service, similar to the snapshot daemon, and can be viewed using the volume status command. The code for the validation and commit phase are the same as the earlier tier validation code in DHT rebalance. The “brickop” phase has been changed so that the status command can use this framework. The service management framework is now used. DHT rebalance does not use this framework. This service framework takes care of : *) spawning the daemon, killing it and other such processes. *) volume set options , which are written on the volfile. *) restart and reconfigure functions. Restart is to restart the daemon at two points 1)after gluster goes down and comes up. 2) to stop detach tier. *) reconfigure is used to make immediate volfile changes. By doing this, we don’t restart the daemon. it has the code to rewrite the volfile for topological changes too (which comes into place during add and remove brick). With this patch the log, pid, and volfile are separated and put into respective directories. Change-Id: I3681d0d66894714b55aa02ca2a30ac000362a399 BUG: 1313838 Signed-off-by: hari gowtham <hgowtham@redhat.com> Reviewed-on: http://review.gluster.org/13365 Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: hari gowtham <hari.gowtham005@gmail.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>