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* geo-rep: Consume Changelog History APIAravinda VK2014-04-304-31/+198
| | | | | | | | | | | | | | | | | | | | | | | | Every time when geo-rep restarts it first does FS crawl using XCrawl and then switches to Changelog Mode. This is because changelog only had live API, that is we can get changes only after registering. Now this(http://review.gluster.org/#/c/6930/) patch introduces History API for changelogs. If history is available then geo-rep will use it instead of FS Crawl. History API returns TS till what time history is available for given start and end time. If TS < endtime then switch to FS Crawl. (History => FS Crawl => Live Changelog) If TS >= endtime, then switch directly to Changelog mode (History => Live Changelog) Change-Id: I4922f62b9f899c40643bd35720e0c81c36b2f255 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/6938 Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-rep: fix the code bug introduced due to flake8 refactoringAravinda VK2014-04-081-6/+9
| | | | | | | | | | | Sorry for the bug, which got introduced due to code refactoring. http://review.gluster.org/#/c/7311/ Change-Id: Ide519ca114aa8a7d7624d7af99945c857f069069 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/7417 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: code pep8/flake8 fixesAravinda VK2014-04-0712-447/+912
| | | | | | | | | | | | | | | | | | | | | | | | | | | pep8 is a style guide for python. http://legacy.python.org/dev/peps/pep-0008/ pep8 can be installed using, `pip install pep8` Usage: `pep8 <python file>`, For example, `pep8 master.py` will display all the coding standard errors. flake8 is used to identify unused imports and other issues in code. pip install flake8 cd $GLUSTER_REPO/geo-replication/ flake8 syncdaemon Updated license headers to each source file. Change-Id: I01c7d0a6091d21bfa48720e9fb5624b77fa3db4a Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/7311 Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Prashanth Pai <ppai@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-rep: Fix ValueError - signal only works in main threadAravinda VK2014-03-201-8/+7
| | | | | | | | | | | | | | | | | | | | When a worker process not confirmed within 60 seconds of start then monitor thread was terminated instead of stopping and restarting the worker thread. Before terminate monitor thread tries to add a signal handler for SIGTERM to cleanup the stuff before terminate. Signal handling will not work inside thread, so ValueError was raised. This patch will not terminate monitor thread, instead only kills and restarts the worker. Change-Id: I14df26c0cc3097af29293c81536c13b86075e28f BUG: 1078068 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/7294 Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: quick-fix for remote xtime set failedKotresh H R2014-03-071-1/+1
| | | | | | | | | | | | | | | | Remote xtime is required for failover/failback, this patch is quick fix to avoid the OSError. Code is masked out, this need to be resolved when failover/failback is worked on. Change-Id: If339d88a2ccd8ef18a3b3c015df765c93dcb020c BUG: 1073844 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/7206 Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Config file upgradeAravinda VK2014-02-102-1/+55
| | | | | | | | | | | | | | | | | | | When old config file is used with new geo-rep, config item like 'georep_session_working_dir' was missing in old config file. With this patch geo-rep sets the default value for new items. Following config options supported: - georep_session_working_dir - gluster_params - ssh_command_tar BUG: 1036539 Change-Id: I389c62e749f3b567f9ecf96d4b41367ef962c025 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/6934 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* gverify: Correcting variable namesAvra Sengupta2014-02-071-2/+2
| | | | | | | | | | Change-Id: I851a50e0ebb7554b821fb591375bb6ebd6240ade BUG: 1036539 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/6939 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-replication: gverify should use disk_size and available_sizeHarshavardhana2014-02-061-14/+27
| | | | | | | | | | | | | | | "commit ef4bb42382a5c9c3ca0907136669a659c2a20311" was incomplete since reduction in sizes doesn't really have any affect on the problem when disks sizes are similar. Actual fix is to verify disk_size and then verify available_size Change-Id: Idb57f606df229c0bdaeda8852c74e84d29109ffc BUG: 1020154 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/6844 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* gsyncd / geo-rep: invoke changelog process() on non-empty change listVenky Shankar2014-02-061-1/+2
| | | | | | | | | Change-Id: Ida4890abdc90d683a4a83127a1573bbb3829ea23 BUG: 1036539 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/6793 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gsyncd / geo-rep: ignore DHTs sticky bit file during crawlVenky Shankar2014-02-062-0/+25
| | | | | | | | | | Change-Id: Ide927759c6a3d5301475eac9f6e785aa901d426e BUG: 1036539 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/6792 Reviewed-by: Kotresh HR <khiremat@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gsyncd / geo-rep: "patch" up missing stimeVenky Shankar2014-02-062-0/+5
| | | | | | | | | | | | | In cases (mostly upgrade) of unavailability of "stime" key and availability of "xtime" (slave's xtime), introduce "stime" key on the fly by setting it to the value to "xtime". Change-Id: Iaa424662d838154c8abc2cf00830c7f9d6be45ac BUG: 1036539 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/6791 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gsyncd / geo-rep: cleanup the "tar" processVenky Shankar2014-02-061-0/+4
| | | | | | | | | | | | A missing cleanup for the "tar" process (when tar+ssh is used as the sync engine). Change-Id: Ib9599b43e7ec606c70b7c5598793417142be3c0b BUG: 1036539 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/6794 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: get new config value after config value resetAravinda VK2014-01-231-0/+1
| | | | | | | | | | | | | | | | | | | | When config.read is called it preserves the previous values from the the previously opened config file. For example import ConfigParser config = ConfigParser.RawConfigParser() config.read("defaults.conf") config.read("preferences.conf") When change in config file is identified it will open new instance of config to avoid getting old config values. Change-Id: Iec677e61ebd2c59c95aea94481f569d78bd913e4 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/6747 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Fix no error when slave size less than master sizeAravinda VK2014-01-231-2/+2
| | | | | | | | | | | | | | | | in df command output, default block-size is 1K, but BUFFER_SIZE is in bytes, so verify will succeed even if slave size is less than master size. Added -B1 to df command(that is --block-size=1) to get all values in bytes. BUG: 1056518 Change-Id: I2384d2a6f2505d967e0538b95fbf111c15b26f30 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/6746 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: optimizing update stime after directory synchronizationAravinda VK2014-01-221-6/+14
| | | | | | | | | | | | | | | | | | | | | Since xsync crawl generates new changelog when number of entries reaches 8K or when directory is reached. If a directory has number of files less than 8K then respective changelog file will have less entries. Since xsync generated changelog files processed one after the other, so syncjobs are underutilized. hence low bandwidth utilization. With this patch, changelog will be generated for 8K entries only, but stime will be accumulated. Multiple dirs stime will be updated together since the generated changelog will have entries accross the dirs. Change-Id: Ib0b40962a070f855f47f887d0840e412fb7928e1 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/6744 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* gsyncd / geo-rep: geo-replication fixesAjeet Jha2013-12-126-269/+769
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -> "threaded" hybrid crawl. -> Enabling metatadata synchronization. -> Handling EINVAL/ESTALE gracefully while syncing metadata. -> Improvments to changelog crawl code. -> Initial crawl changelog generation format. -> No gsyncd restart when checkpoint updated. -> Fix symlink handling in hybrid crawl. -> Slave's xtime key is 'stime'. -> tar+ssh as data synchronization. -> Instead of 'raise', just log in warning level for xtime missing cases. -> Fix for JSON object load failure -> Get new config value after config value reset. -> Skip already processed changelogs. -> Saving status of each individual worker thread. -> GFID fetch on slave for purges. -> Add tar ssh keys and config options. -> Fix nlink count when using backend. -> Include "data" operation for hardlink. -> Use changelog time prefix as slave's time. -> Process changelogs in parallel. Change-Id: I09fcbb2e2e418149a6d8435abd2ac6b2f015bb06 BUG: 1036539 Signed-off-by: Ajeet Jha <ajha@redhat.com> Reviewed-on: http://review.gluster.org/6404 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* geo-rep: Increasing the buffer_size for master-salve size comparision.Ajeet Jha2013-10-241-1/+2
| | | | | | | | | | | | The buffer size is increased to 100MB, considering the space required by slave filesystem bookkeeping. Change-Id: Ib296f0e03b4d7a2de6d5ff0ae9ab09a5261e3e7c BUG: 1020154 Signed-off-by: Ajeet Jha <ajha@redhat.com> Reviewed-on: http://review.gluster.org/6102 Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-rep: logrotate: Logrotate handlingAravinda VK2013-10-032-15/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In existing georep logrotate was implemented by handling SIGSTOP and SIGCONT, gsyncd was failing to start again after SIGSTOP. New approach uses WatchedFileHandler in logging, which tracks the log file changes or logrotate. Reopens the log file if logrotate is triggered or if same log file is updated from other process. As per python doc: http://docs.python.org/2/library/logging.handlers.html: The WatchedFileHandler class, located in the logging.handlers module, is a FileHandler which watches the file it is logging to. If the file changes, it is closed and reopened using the file name. A file change can happen because of usage of programs such as newsyslog and logrotate which perform log file rotation. This handler, intended for use under Unix/Linux, watches the file to see if it has changed since the last emit. (A file is deemed to have changed if its device or inode have changed.) If the file has changed, the old file stream is closed, and the file opened to get a new stream. Change-Id: I30f65eb1e9778b12943d6e43b60a50344a7885c6 BUG: 1012776 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/5968 Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* geo-rep: pack the value of 'readlink()' while crawling symlinksAmar Tumballi2013-09-201-1/+4
| | | | | | | | | | | without having 'readlink()' value, symlink fails on slave mounts Change-Id: Ib84be8db77c033029ba8ba454fd629a496fc3fe1 Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 847839 Reviewed-on: http://review.gluster.org/5950 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-replication: treat MKNOD also as regular file createAmar Tumballi2013-09-201-1/+1
| | | | | | | | | | Change-Id: Iec04f642282b554a4d1b5f5c8cdc099fd001b3f4 Original-Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 847839 Reviewed-on: http://review.gluster.org/5949 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-rep: create hardlink as hardlinks in xsync crawlAmar Tumballi2013-09-201-4/+9
| | | | | | | | | BUG: 847839 Change-Id: Ieaa754f15611392c09afcc7190b9ff9da39d7fce Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5934 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-rep: retry in case of ENOENT errors in entry creationsAmar Tumballi2013-09-172-6/+13
| | | | | | | | | | Change-Id: I8961633a7371c941a3feee44c949d5c934eca998 Original-Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 847839 Reviewed-on: http://review.gluster.org/5933 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* gsyncd / geo-rep: use the correct virtual xattr to collect 'gfid'Venky Shankar2013-09-051-1/+1
| | | | | | | | | Change-Id: Ifea32ad1b2695f1668428fae6b263014bf320b70 BUG: 996379 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5589 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* gsyncd / geo-rep: distributify slaveVenky Shankar2013-09-041-14/+1
| | | | | | | | | | | | | | | | | commit fbb8fd92 introduced slave distributification but had some problems (monitor would crash upon gsyncd start). This patch fixes the issue and makes code more pythonic ;) Change-Id: I2cbf5669d81966046a4aeeb4a6ad11a947aa8f09 BUG: 1003807 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5761 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: Fix "regular file" overloading link()Venky Shankar2013-09-041-0/+1
| | | | | | | | | | | | | | | ... missing entry2pb() call before going ahead with create. Change-Id: I48de4df3f0ea6c789c9eeb10cd332ab461f3c868 BUG: 1003805 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5760 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* geo-replication: fix the logic of choosing the remote node to syncVenky Shankar2013-09-041-2/+11
| | | | | | | | | | | | Change-Id: Ie15636357d89e94b6bfad0e168b1fcad53508c47 BUG: 1003807 Signed-off-by: Amar Tumballi <amarts@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5759 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: maximum number of retries per changelogVenky Shankar2013-09-041-0/+11
| | | | | | | | | | | | | | | | | | With entry retries MAX_RETRIES is the threashold for the number of times we retry a changelog. After hitting this limit, the changelog is marked as processed after warning for incompleteness in the log. Change-Id: I777b71b4cdaa63335d9c936f2d64e5c0264a0f26 BUG: 1003803 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5758 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: fix hardlink creation on slaveVenky Shankar2013-09-041-2/+3
| | | | | | | | | | | | | Change-Id: I20fbd518bf519cbf2362b97aeb8be7c3b105087a BUG: 1003805 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5757 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: handle ENOENT during readlink()Venky Shankar2013-09-041-2/+5
| | | | | | | | | | | | | Change-Id: I8611122fda63ea496ad4491473ecabe96bf19cfa BUG: 1003803 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5756 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: overload rename with an unlinkVenky Shankar2013-09-041-1/+4
| | | | | | | | | | | | | | | | | | This is certainly a "hack" for cases when after a rename the gfid is unlinked (which is now pointed by a different pargfid/basename). This was osbserved when a file edited (uisng vi/vim) on the glusterfs mount point which has a geo-replication session running. Change-Id: I0a5d9f0f549aa4403671fa1f11e95510142e5720 BUG: 1003800 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5755 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: fix "regular file" overloading renameVenky Shankar2013-09-041-0/+1
| | | | | | | | | | | | | | | | | entry operation on the slave was using source parent gfid and basename when renames are overloaded to use regular file creation. This patch fixes the issue by using the destination parent gfid and basename for these cases. Change-Id: I1a4e8df7f07905224ce44ef5abd6f180234285ab BUG: 1003800 Tested-by: Amar Tumballi <amarts@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5754 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: "disjoint" cascading geo-replication sessionsVenky Shankar2013-09-041-100/+33
| | | | | | | | | | | | | | | | | | | | | | | | Slave's xtime is now stored on the master itself (and that too only on the root), which implies it cannot be propogated to the cascaded slave. Thus the intermediate master now makes use of it's own volume information to propogate volume-mark and xtime. On starting Geo-Replication "geo-replication.ignore-pid-check" marker option is enabled, which is an override for the client-pid check in marker. This options triggers marker update only for geo-replication auxillary mount (client-pid == -1). Since gsyncd not does setxattr() directly on the bricks, this option won't trigger a chain of spurious metadata updates that would need to be processed by gsyncd. Change-Id: If50c5ef275dfb6b4ff4fd35be2565587e2fdf3e1 BUG: 996371 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5592 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: introduce "recovery" modeVenky Shankar2013-09-041-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This mode introduces and optimized recovery of master, used during failover-failback cases. Files are only transferred if they are identified as changed on the slave. A normal failback mechanism would be just to reverse the direction of geo-replication syncing. Doing this is the correct way but could be time consuming. "Recovery" mode optimizes this by identifying files (as skipping them) duing the one-shot crawl. NOTE: Use this mode when you are _absolutely_ sure that the namespace on the master is intact, ie. there is number of files in master is equal to the number of files in the slave, but the slave was written to (after a failover) when master was brought back up. - gluster volume geo <MV> <SLAVE>::<SV> config special_sync_mode recover - gluster volume geo <MV> <SLAVE>::<SV> start Change-Id: Idb698949e4e86698b15d04a35d33095562f51714 BUG: 994462 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5515 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: remove deprecated code!Venky Shankar2013-09-041-297/+0
| | | | | | | | | | | | | | | This includes "xtime" base crawling and syncing, "Blind" and "Wrapup" mixins for failover/failback. Change-Id: I9bc8695dc1c19b1261332f64621305dff2929b32 BUG: 994461 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5514 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: fix regular file creation on renameVenky Shankar2013-09-041-1/+1
| | | | | | | | | | | | | | | | | | | | On creation of a regular file on the slave (this happens when an unlink()/rmdir() operation is performed on master after a rename() or a link(). This patch fixes the regular file creation on the slave when the above mentioned series of operation occurs. entry_ops() on the slave for a rename() was missing the stat() information. Change-Id: Idb80c6b3e27c1797dade1113ac8ce920db9c740c BUG: 994353 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5509 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: Introduce basic crawl instrumentationVenky Shankar2013-09-043-78/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch extends the persistent instrumentation work done by Aravinda (@avishwa), by introducing a handfull of instrumentation variables for crawl. These variables are "pulled up" by glusterd in the event of a geo-replication status cli command and looks something like below: "Uptime=00:21:10;FilesSyned=2982;FilesPending=0;BytesPending=0;DeletesPending=0;" "FilesPending", "BytesPending" and "DeletesPending" are short-lived variables that are non-zero when a changelog is being processes (ie. when an active sync in ongoing). After a successfull changelog process "FilesPending" is summed up into "FilesSynced". The three short-lived variabled are then reset to zero and the data is persisted Additionally this patch also reverts some of the changes made for BZ #986929 (those were not needed). Change-Id: I948f1a0884ca71bc5e5bcfdc017d16c8c54fc30b BUG: 990420 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5441 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gsyncd / geo-rep: periodically set slave xtime on slaveVenky Shankar2013-09-042-0/+13
| | | | | | | | | | | | | | | | | | | setting the slave xtime on the slave (after each changelog/xsync) crawl helps in two things: * effective recover of master (failover/failback) * cascading setup - instances when the session from intermediate master session is stopped, data is put on the master -> slave sesssion and then the cascading session is started again. Change-Id: Ifae10a6ac09dc0d17707c3b5a3090bcf1efec8b6 BUG: 990900 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5451 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd/gverify: Check for passwordless ssh in gverify.Venky Shankar2013-09-041-7/+15
| | | | | | | | | | Change-Id: I8c2d398114ad4534bcc052f9a5be8bbb2e7e2582 BUG: 999531 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5677 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd/gverify.sh: Stops session being created with invalid slave detailsVenky Shankar2013-09-041-9/+16
| | | | | | | | | | | | | create force will fail with proper message, if the ip is not reachable, or is unable to fetch slave details. Change-Id: I44a3ba777b37702ffd0e48e9cb46c51e293327d4 BUG: 988314 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5516 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gverify/glusterd : Added check to warn the user of existing files in slave ↵Venky Shankar2013-09-041-11/+13
| | | | | | | | | | | | | volume Change-Id: I41c9fb44613386189d9f3c090729f4ded8e4dea8 BUG: 990997 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5453 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Saving geo-rep session details in a more specific pathVenky Shankar2013-09-043-5/+8
| | | | | | | | | | | | | | | Now saving the session details in /var/lib/glusterd/geo-replication/<mastervol>_<slaveip>_<slavevol> repo to distinguish between two master-slave sessions where the slavename is same across two different clusters. Change-Id: I57c93f55cc9bd4fe2bffe579028aaf5e4335b223 BUG: 991501 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5488 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* geo-replication: Use a md5 based unique control pathHarshavardhana2013-09-043-7/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A hostname fqdn can be of length 255 according to RFC1123 -------------------------> /usr/include/bits/posix1_lim.h:#define _POSIX_HOST_NAME_MAX 255 <------------------------- On linux this length is 64 -------------------------> /usr/include/bits/local_lim.h:#define HOST_NAME_MAX 64 <------------------------- When a given hostname is > 45 (characters) - SSH fails with --------------------------> "ControlPath too long for Unix domain socket". <-------------------------- Indicating that the total length of ControlPath which is on linux should be 108 -------------------------> /usr/include/linux/un.h:#define UNIX_PATH_MAX 108 <------------------------- This leads to "faulty" geo-replication status. This patch brings in a new file called manifest which carries given a geo-rep session some unique information - with which a unique `md5` is generated in a 32length digest, this ensures that we don't exceed UNIX_PATH_MAX limitations instead we use a conservative approach and still be able to provide a unique socket path. Change-Id: I3a6a27d605d751a86e7c82eace4561d9b0134fe1 BUG: 990330 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/5681 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Csaba Henk <csaba@redhat.com>
* glusterd/cli changes for distributed geo-repAvra Sengupta2013-07-267-13/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commands: gluster system:: execute gsec_create gluster volume geo-rep <master> <slave-url> create [push-pem] [force] gluster volume geo-rep <master> <slave-url> start [force] gluster volume geo-rep <master> <slave-url> stop [force] gluster volume geo-rep <master> <slave-url> delete gluster volume geo-rep <master> <slave-url> config gluster volume geo-rep <master> <slave-url> status The geo-replication is distributed. The session will be created, and gsyncd will be spawned on all relevant nodes, instead of only one node. geo-rep: Collecting status detail related data Added persistent store for saving information about TotalFilesSynced, TotalSyncTime, TotalBytesSynced Changes in the status information in socket: Existing(Ex): FilesSynced=2;BytesSynced=2507;Uptime=00:26:01; New(Ex): FilesSynced=2;BytesSynced=2507;Uptime=00:26:01;SyncTime=0.69978; TotalSyncTime=2.890044;TotalFilesSynced=6;TotalBytesSynced=143640; Persistent details stored in /var/lib/glusterd/geo-replication/${mastervol}/${eSlave}-detail.status Change-Id: I1db7fc13ffca2e415c05200b0109b1254067f111 BUG: 847839 Original Author: Avra Sengupta <asengupt@redhat.com> Original Author: Venky Shankar <vshankar@redhat.com> Original Author: Aravinda VK <avishwan@redhat.com> Original Author: Amar Tumballi <amarts@redhat.com> Original Author: Csaba Henk <csaba@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5132 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* gsyncd: distribute the crawling loadAvra Sengupta2013-07-2615-240/+1373
| | | | | | | | | | | | | | | | | | | * also consume changelog for change detection. * Status fixes * Use new libgfchangelog done API * process (and sync) one changelog at a time Change-Id: I24891615bb762e0741b1819ddfdef8802326cb16 BUG: 847839 Original Author: Csaba Henk <csaba@redhat.com> Original Author: Aravinda VK <avishwan@redhat.com> Original Author: Venky Shankar <vshankar@redhat.com> Original Author: Amar Tumballi <amarts@redhat.com> Original Author: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5131 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* move 'xlators/marker/utils/' to 'geo-replication/' directoryAvra Sengupta2013-07-2218-0/+3981
Change-Id: Ibd0faefecc15b6713eda28bc96794ae58aff45aa BUG: 847839 Original Author: Amar Tumballi <amarts@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5133 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
generated by cgit (git 2.34.1) at 2024-11-11 23:17:52 +0000