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* cluster/dht: make rebalance use truncate incaseSusant Palai2017-11-223-71/+99
| | | | | | | | | .. the brick file system does not support fallocate. Change-Id: Id76cda2d8bb3b223b779e5e7a34f17c8bfa6283c BUG: 1488103 Signed-off-by: Susant Palai <spalai@redhat.com>
* cluster/dht: Coverity fixes for dht-rebalance.ckarthik-us2017-11-211-80/+54
| | | | | | | | | | | | | | | | | | Warning Functions DEADCODE gf_defrag_handle_migrate_error gf_defrag_get_entry gf_defrag_process_dir gf_defrag_start_crawl dht_migrate_file UNUSED_VALUE migrate_special_files dht_migrate_file FORWARD_NULL gf_tier_do_fix_layout Change-Id: I6f408585b83a267581a4273dae7c22b8993163d5 BUG: 789278 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* cluster/dht: dead code coverity fixKartik_Burmee2017-11-211-3/+0
| | | | | | | | | | | | issue: Execution cannot reach this statement: "call_stub_destroy(stub);" function: dht_mkdir_hashed_cbk fix: removed the statement and the corresponding 'if' condition block. Change-Id: I3e31056ee489ede6864e51a8e666edc7da3c175f BUG: 789278 Signed-off-by: Kartik_Burmee <kburmee@redhat.com>
* cluster/dht: Don't set ACLs on linkto fileN Balachandran2017-11-191-0/+11
| | | | | | | | | | | | | | The trusted.SGI_ACL_FILE appears to set posix ACLs on the linkto file that is a target of file migration. This can mess up file permissions and cause linkto identification to fail. Now we remove all ACL xattrs from the results of the listxattr call on the source before setting them on the target. Change-Id: I56802dbaed783a16e3fb90f59f4ce849f8a4a9b4 BUG: 1514329 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* tier: coverity fix for tier-common.chari gowtham2017-11-161-28/+5
| | | | | | | | | fix for the coverity id: 258, 162 Change-Id: I35ba21e37e186b7c1ce54faf5b24f48858e6fc70 BUG: 789278 Signed-off-by: hari gowtham <hgowtham@redhat.com>
* cluster/dht: Check for NULL local before using itAshish Pandey2017-11-081-2/+6
| | | | | | | | | | | Coverity ID: 261 Coverity ID: 257 Check if local is NULL or not Change-Id: I570f87f32e1347f891c6a02ee5641fcc5a262a96 BUG: 789278 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* cluster/dht: Check for NULL before using variableAshish Pandey2017-11-062-4/+6
| | | | | | | | | | | | Coverity ID: 245 Check statvfs received as cbk before using it Coverity ID: 228 Check NULL loc before freeing it. Change-Id: I1b153ed5e7b81bcf7033bf710808e95908dcfef4 BUG: 789278 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* core: make gf_boolean_t a C99 bool instead of an enumJeff Darcy2017-11-032-4/+10
| | | | | | | | | | | | This reduces the space used from four bytes to one, and allows new code to use familiar C99 types/values interoperably with our old cruft. It does *not* change current declarations or code; that will be left for a separate - much larger - patch. Updates: #80 Change-Id: I5baedd17d3fb05b38f0d8b8bb9dd62824475842e Signed-off-by: Jeff Darcy <jdarcy@fb.com>
* xlator/tier: flood of -Wformat-truncation warnings with gcc-7.1v4.0dev1Kaleb S. KEITHLEY2017-11-011-8/+9
| | | | | | | | | | | | | | | | Starting in Fedora 26 which has gcc-7.1.x, -Wformat-trunction is enabled with -Wformat, resulting in a flood of new warnings. This many warnings is a concern because it makes it hard(er) to see other warnings that should be addressed. An example is at https://kojipkgs.fedoraproject.org//packages/glusterfs/3.12.0/1.fc28/data/logs/x86_64/build.log For more info see https://review.gluster.org/#/c/18267/ Change-Id: Id7ef8e0dedd28ada55f72c03d91facbe1c9888bd BUG: 1492849 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
* cluster/dht: fix crash when deleting directoriesZhang Huan2017-10-161-2/+4
| | | | | | | | | | | | | | | | | | | | | In DHT, after locks on all subvolumes are acquired, it would perform the following steps sequentially, 1. send remove dir on all other subvolumes except the hashed one in a loop; 2. wait for all pending rmdir to be done 3. remove dir on the hashed subvolume The problem is that in step 1 there is a check to skip hashed subvolume in the loop. If the last subvolume to check is actually the hashed one, and step 3 is quickly done before the last and hashed subvolume is checked, by accessing shared context data be destroyed in step 3, would cause a crash. Fix by saving shared data in a local variable to access later in the loop. Change-Id: I8db7cf7cb262d74efcb58eb00f02ea37df4be4e2 BUG: 1490642 Signed-off-by: Zhang Huan <zhanghuan@open-fs.com>
* dht: free memory allocated in dht_init() and dht_init_subvolumes()Niels de Vos2017-10-111-1/+17
| | | | | | | | | When glfs_fini() is called, DHT fails to free all memory allocations which result in a considerable leak. Change-Id: I37c6de5c93ca4516266dbe8288b4a416f5589901 BUG: 1443145 Signed-off-by: Niels de Vos <ndevos@redhat.com>
* cluster/dht: Don't store the entire uuid for subvolsN Balachandran2017-10-104-19/+40
| | | | | | | | | | | | Comparing the uuid string of the local node against that stored in the local_subvol information is inefficient, especially as it is done for every file to be migrated. The code has now been changed to set the value of info to 1 if the nodeuuid is that of the node making the comparison so this becomes an integer comparison. Change-Id: I7491d59caad3b71dbf5facc94dcde0cd53962775 BUG: 1451434 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* cluster/dht : User xattrs are not healed after brick stop/startMohit Agrawal2017-10-047-111/+2077
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: In a distributed volume custom extended attribute value for a directory does not display correct value after stop/start or added newly brick. If any extended(acl) attribute value is set for a directory after stop/added the brick the attribute(user|acl|quota) value is not updated on brick after start the brick. Solution: First store hashed subvol or subvol(has internal xattr) on inode ctx and consider it as a MDS subvol.At the time of update custom xattr (user,quota,acl, selinux) on directory first check the mds from inode ctx, if mds is not present on inode ctx then throw EINVAL error to application otherwise set xattr on MDS subvol with internal xattr value of -1 and then try to update the attribute on other non MDS volumes also.If mds subvol is down in that case throw an error "Transport endpoint is not connected". In dht_dir_lookup_cbk| dht_revalidate_cbk|dht_discover_complete call dht_call_dir_xattr_heal to heal custom extended attribute. In case of gnfs server if hashed subvol has not found based on loc then wind a call on all subvol to update xattr. Fix: 1) Save MDS subvol on inode ctx 2) Check if mds subvol is present on inode ctx 3) If mds subvol is down then call unwind with error ENOTCONN and if it is up then set new xattr "GF_DHT_XATTR_MDS" to -1 and wind a call on other subvol. 4) If setxattr fop is successful on non-mds subvol then increment the value of internal xattr to +1 5) At the time of directory_lookup check the value of new xattr GF_DHT_XATTR_MDS 6) If value is not 0 in dht_lookup_dir_cbk(other cbk) functions then call heal function to heal user xattr 7) syncop_setxattr on hashed_subvol to reset the value of xattr to 0 if heal is successful on all subvol. Test : To reproduce the issue followed below steps 1) Create a distributed volume and create mount point 2) Create some directory from mount point mkdir tmp{1..5} 3) Kill any one brick from the volume 4) Set extended attribute from mount point on directory setfattr -n user.foo -v "abc" ./tmp{1..5} It will throw error " Transport End point is not connected " for those hashed subvol is down 5) Start volume with force option to start brick process 6) Execute getfattr command on mount point for directory 7) Check extended attribute on brick getfattr -n user.foo <volume-location>/tmp{1..5} It shows correct value for directories for those xattr fop were executed successfully. Note: The patch will resolve xattr healing problem only for fuse mount not for nfs mount. BUG: 1371806 Signed-off-by: Mohit Agrawal <moagrawa@redhat.com> Change-Id: I4eb137eace24a8cb796712b742f1d177a65343d5
* dht: fix a coverity error of type - UNREACHABLEKamal Mohanan2017-09-281-3/+0
| | | | | | | | | | | | | | Problem: Unreachable assignment statement at dht-rebalance.c:1040 Fix: Delete line dht-rebalance.c:1040. The goto statements at lines 1037 and 1031 are also deleted since both branches of the if statement finally go to the same immediately-following label anyway. Change-Id: I5f47ea99244cae2a0a9f2aec7284faadf2ea286a BUG: 789278 Signed-off-by: Kamal Mohanan <kmohanan@redhat.com>
* Fix a coverity error of checker type: CHECKED_RETURNKamal Mohanan2017-09-261-1/+1
| | | | | | | | | | | Problem: dht_frame_return was being called without checking the return value. Solution: Typecast the value returned by the function to void. Change-Id: Idfc6a7ed467d1c8f5f8d09ec26d9059f3d23b760 BUG: 789278 Signed-off-by: Kamal Mohanan <kmohanan@redhat.com>
* dht: add FOP check to dht_file_setattr_cbkRavishankar N2017-09-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | Problem: bug-797171.7 loaded error-gen xlator on the brick which sent EBADF for a non fd-based fop, namely setattr. This caused dht_check_and_open_fd_on_subvol_task() to crash as local->fd was NULL. Fix: Call dht_check_and_open_fd_on_subvol_task() from dht_file_setattr_cbk only for dht_fsetattr and not dht_setattr or dht_setattr2 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Change-Id: Iab4999e213bf2065804f3f8237e470ad454e3c99 BUG: 1488399 Reviewed-on: https://review.gluster.org/18208 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Susant Palai <spalai@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Log files skipped by rebalanceN Balachandran2017-08-302-1/+19
| | | | | | | | | | | | | | | | | There was no easy way to find out which files were skipped during a rebalance. Rebalance now logs a message for every skipped file using msgid 109126, making it easier to find all files that were skipped. Change-Id: I2cac7db7285e2f82354251f3ea4094827b0daf3e BUG: 1480445 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/18021 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: hari gowtham <hari.gowtham005@gmail.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Aggregate xattrs only for dirs in dht_discover_cbkN Balachandran2017-08-301-2/+11
| | | | | | | | | | | | | | | | | If dht_discover finds data files on more than one subvol, racing calls to dht_discover_cbk could end up calling dht_aggregate_xattr which could delete dictionary data that is being accessed by higher layer translators. Fixed to call dht_aggregate_xattr only for directories and consider only the first file to be found. Change-Id: I4f3d2a405ec735d4f1bb33a04b7255eb2d179f8a BUG: 1484709 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/18137 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Reorder dir operations in gf_defrag_fix_layoutN Balachandran2017-08-201-76/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | Earlier, rebalance performed a fix-layout on a directory before healing its subdirectories. If there were a lot of subdirs, it could take a while before all subdirs were created on the newly added bricks. As dht_readdirp only lists dirs from their hashed subvol, those dirs which hashed to the newly added bricks but were not yet created on them were not listed. Now, the child dirs are listed and processed before the layout of the parent is fixed. This introduces a change in behaviour where files in subdirs are migrated before those in parent directories. Credit: Shyam <srangana@redhat.com> Github issue: #239 Change-Id: I8ae7f24a510754cd8d1b31e5d608bcf1928599e2 BUG: 1248393 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/18045 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: EBADF handling for fremovexattr and fsetxattrN Balachandran2017-08-093-3/+44
| | | | | | | | | | | | | Add EBADF handling for dht_fremovexattr and dht_fsetxattr. Change-Id: Ide0d5812dae79655d2565157e5baabcd753b4309 BUG: 1476665 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17999 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Check for open fd only on EBADFN Balachandran2017-08-084-160/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | DHT fd based fops used to check if the fd was open on the cached subvol before winding the call. However, this introduced a performance regression of about 30% for reads. This check was introduced to handle cases where files were migrated while IOs were happening. As this is not the common case, dht will now check if the fd is open on the cached subvol only if the call fails with EBADF. This will prevent a performance hit where a rebalance is not running. Change-Id: I2035a858d63c3fcd22bb634055bbb0ad01686808 BUG: 1476665 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17976 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Susant Palai <spalai@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* Revert "cluster/dht: Check for open fd only on EBADF"N Balachandran2017-08-042-116/+160
| | | | | | | | | | | | This reverts commit 91c9f4a19fde4894576b398252c77f730832a26a. This patch needs to be reworked. Change-Id: I4c24f647c2b1abc68fc4e9fe6eb810418e2033aa BUG: 1476665 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17970 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Handle wrong rebalance status reportingSusant Palai2017-08-011-29/+32
| | | | | | | | | | | Change-Id: Id91ef35f890055cd42b9a94462f92297c77f1fff Bug: 1475282 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: https://review.gluster.org/17868 Tested-by: Raghavendra G <rgowdapp@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: rebalance min-free-disk fixSusant Palai2017-08-011-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | To calculate available space on a subvolume we used to do the following in __dht_check_free_space. post_availspace = (dst_statfs.f_bavail * dst_statfs.f_frsize) - stbuf->ia_size Now to subtracting the file size from available space is tricky here. Sometime available space will be lesser than the file size and since all the participating members in calculation are unsigned int, the result is a large number (integer overflow). Solution: We do not need to subtract the file size from the space available, since fallocate would have reserved file size space already. Change-Id: I4f724358c44b9911933742ff3ff8d55b3dfda1cb BUG: 1475282 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: https://review.gluster.org/17876 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Check for open fd only on EBADFN Balachandran2017-07-312-160/+116
| | | | | | | | | | | | | | | | | | DHT fd based fops will now check if the fd is open on the cached subvol only if the call fails with EBADF. This will improve performance for scenarios where a rebalance is not running which would be most of the time. Change-Id: Idfaeb8927af769c6110d07a165a0fe2307369239 BUG: 1476665 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17922 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: change log level to debug for thread activitySusant Palai2017-07-261-13/+11
| | | | | | | | | | | | | | | | | Every time all the thread sleeps or wakes up, we log a message about that event. Sometime this can be noisy where the number of files eligible to be migrated are placed far away from each other. Moving the logs to DEBUG. Change-Id: I4dc2cc9fdf4f42d4001754532a5bc4aeb3f0f959 BUG: 1474639 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: https://review.gluster.org/17866 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Fix negative rebalance estimatesN Balachandran2017-07-261-8/+20
| | | | | | | | | | | | | | | | The calculation of the rebalance estimates will start after the rebalance operation has been running for 10 minutes. This patch also changes the cli rebalance status code to use unsigned variables for the time calculations. Change-Id: Ic76f517c59ad938a407f1cf5e3b9add571690a6c BUG: 1457985 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17863 Reviewed-by: Amar Tumballi <amarts@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Update size processed for non-migrated filesN Balachandran2017-07-251-6/+10
| | | | | | | | | | | | | | | The size of non-migrated files was not added to the size_processed causing incorrect rebalance estimate calculations. This has been fixed. Change-Id: I9f338c44da22b856e9fdc6dc558f732ae9a22f15 BUG: 1467209 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17867 Reviewed-by: Amar Tumballi <amarts@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Correct iterator for decommissioned bricksN Balachandran2017-07-251-1/+1
| | | | | | | | | | | | | | | Corrected the iterator for looping over the list of decommissioned bricks while checking if the new target determined because of min-free-disk values has been decommissioned. Change-Id: Iee778547eb7370a8069e954b5d629fcedf54e59b BUG: 1474318 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17861 Reviewed-by: Susant Palai <spalai@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Fixed crash in dht_rmdir_is_subvol_emptyN Balachandran2017-07-201-13/+34
| | | | | | | | | | | | | | | | | | | The local->call_cnt was being accessed and updated inside the loop where the entries were being processed and the calls were being wound. This could end up in a scenario where the local->call_cnt became 0 before the processing was complete causing the crash when the next entry was being processed. Change-Id: I930f61f1a1d1948f90d4e58e80b7d6680cf27f2f BUG: 1472949 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17825 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jeff@pl.atyp.us> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
* libglusterfs: Name threads on creationRaghavendra Talur2017-07-193-20/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set names to threads on creation for easier debugging. Output of top -H -p <PID-OF-GLUSTERFSD> Before: 19773 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19774 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19775 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19776 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19777 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19778 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19779 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19780 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19781 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19782 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19783 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19784 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19785 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.01 glusterfsd 19786 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.01 glusterfsd 19787 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.01 glusterfsd 19789 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19790 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 25178 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 5398 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 7881 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd After: 19773 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19774 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glustertimer 19775 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterfsd 19776 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glustermemsweep 19777 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glustersproc0 19778 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glustersproc1 19779 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterepoll0 19780 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusteridxwrker 19781 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusteriotwr0 19782 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterbrssign 19783 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterbrswrker 19784 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterclogecon 19785 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.01 glusterclogd0 19786 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.01 glusterclogd1 19787 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.01 glusterclogd2 19789 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterposixjan 19790 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterposixfsy 25178 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterepoll1 5398 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterepoll2 7881 root 20 0 1301.3m 12.6m 8.4m S 0.0 0.1 0:00.00 glusterposixhc Change-Id: Id5f333755c1ba168a2ffaa4fce6e71c375e10703 BUG: 1254002 Updates: #271 Signed-off-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-on: https://review.gluster.org/11926 Reviewed-by: Prashanth Pai <ppai@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Niels de Vos <ndevos@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/rebalance: Fix hardlink migration failuresSusant Palai2017-07-132-15/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A brief about how hardlink migration works: - Different hardlinks (to the same file) may hash to different bricks, but their cached subvol will be same. Rebalance picks up the first hardlink, calculates it's hash(call it TARGET) and set the hashed subvolume as an xattr on the data file. - Now all the hardlinks those come after this will fetch that xattr and will create linkto files on TARGET (all linkto files for the hardlinks will be hardlink to each other on TARGET). - When number of hardlinks on source is equal to the number of hardlinks on TARGET, the data migration will happen. RACE:1 Since rebalance is multi-threaded, the first lookup (which decides where the TARGET subvol should be), can be called by two hardlink migration parallely and they may end up creating linkto files on two different TARGET subvols. Hence, hardlinks won't be migrated. Fix: Rely on the xattr response of lookup inside gf_defrag_handle_hardlink since it is executed under synclock. RACE:2 The linkto files on TARGET can be created by other clients also if they are doing lookup on the hardlinks. Consider a scenario where you have 100 hardlinks. When rebalance is migrating 99th hardlink, as a result of continuous lookups from other client, linkcount on TARGET is equal to source linkcount. Rebalance will migrate data on the 99th hardlink itself. On 100th hardlink migration, hardlink will have TARGET as cached subvolume. If it's hash is also the same, then a migration will be triggered from TARGET to TARGET leading to data loss. Fix: Make sure before the final data migration, source is not same as destination. RACE:3 Since a hardlink can be migrating to a non-hashed subvolume, a lookup from other client or even the rebalance it self, might delete the linkto file on TARGET leading to hardlinks never getting migrated. This will be addressed in a different patch in future. Change-Id: If0f6852f0e662384ee3875a2ac9d19ac4a6cea98 BUG: 1469964 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: https://review.gluster.org/17755 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: N Balachandran <nbalacha@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Clear clean_dst flag on target changeN Balachandran2017-07-111-0/+5
| | | | | | | | | | | | | | | | | | If the target of a file migration was changed because of min-free-disk limits, the dst_fd was closed but the clean_dst flag was not set to false. If the file could not be created on the new target for some reason, the ftruncate call to clean up the dst was sent on the now invalid fd causing the process to deadlock. Change-Id: I5bfa80f519b04567413d84229cf62d143c6e2f04 BUG: 1469029 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17735 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Fix fd check raceN Balachandran2017-07-112-1/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | There is a another race between the cached subvol being updated in the inode_ctx and the fd being opened on the target. 1. fop1 -> fd1 -> subvol0 2. file migrated from subvol0 to subvol1 and cached_subvol changed to subvol1 in inode_ctx 3. fop2 -> fd1 -> subvol1 [takes new cached subvol] 4. fop2 -> checks fd ctx (fd not open on subvol1) -> opens fd1 on subvol1 5. fop1 -> checks fd ctx (fd not open on subvol0) -> tries to open fd1 on subvol0 -> fails with "No such file on directory". Fix: If dht_fd_open_on_dst fails with ENOENT or ESTALE, wind to old subvol and let the phase1/phase2 checks handle it. Change-Id: I34f8011574a8b72e3bcfe03b0cc4f024b352f225 BUG: 1465075 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17731 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* cluster/dht: Use size to calculate estimatesN Balachandran2017-07-103-24/+188
| | | | | | | | | | | | | | | | | | | The earlier approach of using the number of files to determine when the rebalance would complete did not work well when file sizes differed widely. The new approach now gets the total data size and uses that information to determine how long the rebalance is expected to take. Change-Id: I84e80a0893efab72ff06130e4596fa71c9c8c868 BUG: 1467209 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17668 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: MOHIT AGRAWAL <moagrawa@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* core: assorted typos and spelling mistakes from Debian lintianKaleb S. KEITHLEY2017-07-031-1/+1
| | | | | | | | | | | | | | Plus minor readability improvements. Reported-by: pmatthaei@debian.org Change-Id: I5393819a2fc9f240a19811143bb57b127df717cf BUG: 1466785 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: https://review.gluster.org/17660 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster:dht Fix crash in dht_rename_lock_cbkN Balachandran2017-06-291-2/+4
| | | | | | | | | | | | | | | | | | Use a local variable to store the call count in the STACK_WIND for loop. Using frame->local is dangerous as it could be freed while the loop is still being processed Change-Id: Ie65cdcfb7868509b4a83bc2a5b5d6304eabfbc8e BUG: 1466110 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17645 Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: Nigel Babu <nigelb@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Jeff Darcy <jeff@pl.atyp.us> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
* cluster/dht: Check if fd is opened on dst subvolN Balachandran2017-06-286-30/+543
| | | | | | | | | | | | | | | | | | | | If an fd is opened on a file, the file is migrated and the cached subvol is updated in the inode_ctx before an fd based fop is sent, the fop is sent to the dst subvol on which the fd is not opened. This causes the FOP to fail with EBADF. Now, every fd based fop will check to see that the fd has been opened on the dst subvol before winding it down. Change-Id: Id92ef5eb7a5b5226688e2d2868b15e383f5f240e BUG: 1465075 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17630 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Susant Palai <spalai@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* cluster/rebalance: Use GF_XATTR_LIST_NODE_UUIDS_KEY to figure out local subvols.Susant Palai2017-06-263-55/+54
| | | | | | | | | | | | | | | | | | | | | | Afr has introduced a new key GF_XATTR_LIST_NODE_UUIDS_KEY, through which rebalance will figure out its local subvolumes.(Reference bugid=1463250) key: GF_XATTR_NODE_UUID_KEY will continue to serve it's old purpose of returning the first afr chiild. test: prove tests/basic/distribute/rebal-all-nodes-migrate.t Change-Id: I4d602feda2a05b29d2210c712a07a4ac6b8bc112 BUG: 1463648 Signed-off-by: Susant Palai <spalai@redhat.com> Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17595 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
* cluster/dht: rebalance gets file count periodicallyN Balachandran2017-06-234-30/+97
| | | | | | | | | | | | | | | | The rebalance used to get the file count in the beginning and not update it. This caused estimates to fail if the number changed during the rebalance. The rebalance now updates the file count periodically. Change-Id: I1667ee69e8a1d7d6bc6bc2f060fad7f989d19ed4 BUG: 1464110 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17607 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* dht/hardlink : Remove stale linkto file incase of failureJiffin Tony Thottan2017-06-223-1/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a similar issue fixed for rename in https://review.gluster.org/#/c/16016/ For hardlinks, if cached and hashed subvolumes are different, then it will first create linkto file in hashed using root permission, but actually hardlink creation fails with EACESS and stale linkto file is never removed.All the followup hardlink calls with file name will result ESTALE because linktofile creation fails with EEXIST and follow up lookup on linkto file returns gfid-mismatching(old linkto file) and finally fails with ESTALE Steps to produce : (From link/00.t test from posix-testsuite) Steps executed in script * create a file "abc" using root * change the ownership of file to a non root user * create hardlink "link" for "abc" using a non root user, it fails with EACESS * delete "abc" * create directory "abc" using root * again try to create hadrlink "link" for "abc" using non root user, fails with ESTALE Also tried to fix other bugs in dht_linkfile_create_cbk() and posix_lookup. Thanks Susant for the help in debugging the issue and suggestion for this patch. Change-Id: I7a5a1899d3fd1fdb13578b37f9d52a084492e35d BUG: 1452084 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Reviewed-on: https://review.gluster.org/17331 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: Raghavendra G <rgowdapp@redhat.com>
* dht: passing the errno as an argument to gf_msgAnkitRaj2017-06-201-110/+109
| | | | | | | | | | | | | | | | | | | There are many calls in gf_msg where errno is needed to pass as an argument instead of strerrno(error) Change-Id: I15048a5e0b41f9752a2023afe8470eca6f2cd383 Bug: 1454701 Signed-off-by: AnkitRaj <anraj@redhat.com> Reviewed-on: https://review.gluster.org/17464 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: MOHIT AGRAWAL <moagrawa@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> Tested-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: Karthik U S <ksubrahm@redhat.com> Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
* cluster/dht: Additional checks for rebalance estimatesN Balachandran2017-06-201-5/+15
| | | | | | | | | | | | | | | | | | | | | The rebalance estimates calculation was not handling calculations correctly when no files had been processed, i.e., when rate_lookedup was 0. Now, the estimated time is set to 0 in such scenarios as there is no way for rebalance to figure out how long the process will take to complete without knowing the rate at which the files are being processed. Change-Id: I7b6378e297e1ba139852bcb2239adf2477336b5b BUG: 1457985 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17564 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: Amar Tumballi <amarts@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* dht: reduce duplicate code in tier migrateAmar Tumballi2017-06-141-75/+10
| | | | | | | | | | | | | | | Updates #234 Change-Id: I016f6d4f1e5ad2ea56a611c1bffbd189f10650db Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: https://review.gluster.org/17525 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: hari gowtham <hari.gowtham005@gmail.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Susant Palai <spalai@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Include dirs in rebalance estimatesN Balachandran2017-06-073-31/+83
| | | | | | | | | | | | | | | | | Empty directories were not being considered while calculating rebalance estimates leading to negative time-left values being displayed as part of the rebalance status. Change-Id: I48d41d702e72db30af10e6b87b628baa605afa98 BUG: 1457985 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17448 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: Amar Tumballi <amarts@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* core: fix spelling errorsKaleb S. KEITHLEY2017-06-021-1/+1
| | | | | | | | | | | | | | fixes for various minor spelling errors and typos Reported-by: Patrick Matthäi <pmatthaei@debian.org> Change-Id: Ic1be36f82e3d822bbdc9559878bd79520fc0fcd5 BUG: 1457808 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: https://review.gluster.org/17442 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> Smoke: Gluster Build System <jenkins@build.gluster.org>
* cluster/dht: Make optimal usage of buffer provided with readdir(p)Sakshi2017-05-314-54/+62
| | | | | | | | | | | | | | | | | | | dht_readdirp must unwind with list of entries only after the entire buffer requested by kernel is filled to avoid extra syscalls occuring when returning partially filled buffer. Also wind readdir call to next subvol on reaching EOD for directory on that subvol to avoid extra network call. Change-Id: If2e1a2722f813d95457c7542bff25fef56c7a041 BUG: 1356453 Signed-off-by: Sakshi <sabansal@redhat.com> Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: https://review.gluster.org/12271 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: Amar Tumballi <amarts@redhat.com> Reviewed-by: Susant Palai <spalai@redhat.com>
* cluster/dht: fix on demand migration files from clientSusant Palai2017-05-304-20/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On demand migration of files i.e. migration done by clients triggered by a setfattr was broken. Dependency on defrag led to crash when migration was triggered from client. Note: This functionality is not available for tiered volumes. Migration from tier served client will fail with ENOTSUP. usage (But refer to the steps mentioned below to avoid any issues) : setfattr -n "trusted.distribute.migrate-data" -v "1" <filename> The purpose of fixing the on-demand client migration was to give a workaround where the user has lots of empty directories compared to files and want to do a remove-brick process. Here are the steps to trigger file migration for remove-brick process from client. (This is highly recommended to follow below steps as is) Let's say it is a replica volume and user want to remove a replica pair named brick1 and brick2. (Make sure healing is completed before you run these steps) Step-1: Start remove-brick process - gluster v remove-brick <volname> brick1 brick2 start Step-2: Kill the rebalance daemon - ps aux | grep glusterfs | grep rebalance\/ | awk '{print $2}' | xargs kill Step-3: Do a fresh mount as mentioned here - glusterfs -s ${localhostname} --volfile-id rebalance/$volume-name /tmp/mount/point Step-4: Go to one of the bricks (among brick1 and brick2) - cd <brick1 path> Step-5: Run the following command. - find . -not \( -path ./.glusterfs -prune \) -type f -not -perm 01000 -exec bash -c 'setfattr -n "distribute.fix.layout" -v "1" ${mountpoint}/$(dirname '{}')' \; -exec setfattr -n "trusted.distribute.migrate-data" -v "1" ${mountpoint}/'{}' \; This command will ignore the linkto files and empty directories. Do a fix-layout of the parent directory. And trigger a migration operation on the files. Step-6: Once this process is completed do "remove-brick force" - gluster v remove-brick <volname> brick1 brick2 force Note: Use the above script only when there are large number of empty directories. Since the script does a crawl on the brick side directly and avoids directories those are empty, the time spent on fixing layout on those directories are eliminated(even if the script does not do fix-layout on empty directories, post remove-brick a fresh layout will be built for the directory, hence not affecting application continuity). Detailing the expectation for hardlink migartion with this patch: Hardlink is migrated only for remove-brick process. It is highly essential to have a new mount(step-3) for the hardlink migration to happen. Why?: setfattr operation is an inode based operation. Since, we are doing setfattr from fuse mount here, inode_path will try to build path from the linked dentries to the inode. For a file without hardlinks the path construction will be correct. But for hardlinks, the inode will have multiple dentries linked. Without fresh mount, inode_path will always get the most recently linked dentry. e.g. if there are three hardlinks named dir1/link1, dir2/link2, dir3/link3, on a client where these hardlinks are looked up, inode_path will always return the path dir3/link3 if dir3/link3 was looked up most recently. Hence, we won't be able to create linkto files for all other hardlinks on destination (read gf_defrag_handle_hardlink for more details on hardlink migration). With a fresh mount, the lookup and setfattr become serialized. e.g. link2 won't be looked up until link1 is looked up and migrated. Hence, inode_path will always have the correct path, in this case link1 dentry is picked up(as this is the most recently looked up inode) and the path is built right. Note: If you run the above script on an existing mount(all entries looked up), hard links may not be migrated, but there should not be any other issue. Please raise a bug, if you find any issue. Tests: Manual Change-Id: I9854cdd4955d9e24494f348fb29ba856ea7ac50a BUG: 1450975 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: https://review.gluster.org/17115 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>
* features/dht: Initialize local hashed_subvolKotresh HR2017-05-251-0/+15
| | | | | | | | | | | | | | | | | | Self heal directory code path doesn't always have local->hashed_subvol populated. Populating the same which otherwise would fail the self heal. Change-Id: I03b64709fd7a68e28f9e7438243e817c53c6ef5d BUG: 1455104 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: https://review.gluster.org/17381 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: Amar Tumballi <amarts@redhat.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* cluster/dht: Fix crash in dht_selfheal_dir_setattrN Balachandran2017-05-191-2/+6
| | | | | | | | | | | | | | | Use a local variable to store the call cnt used in the for loop for the STACK_WIND so as not to access local which may be freed by STACK_UNWIND after all fops return. Change-Id: I24f49b6dbd29a2b706e388e2f6d5196c0f80afc5 BUG: 1452102 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17343 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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