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* cluster/dht: Rebalance on all nodes should migrate filesN Balachandran2017-05-161-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Rebalance compares the node-uuid of a file against its own to and migrates a file only if they match. However, the current behaviour in both AFR and EC is to return the node-uuid of the first brick in a replica set for all files. This means a single node ends up migrating all the files if the first brick of every replica set is on the same node. Fix: AFR and EC will return all node-uuids for the replica set. The rebalance process will divide the files to be migrated among all the nodes by hashing the gfid of the file and using that value to select a node to perform the migration. This patch makes the required DHT and tiering changes. Some tests in rebal-all-nodes-migrate.t will need to be uncommented once the AFR and EC changes are merged. Change-Id: I5ce41600f5ba0e244ddfd986e2ba8fa23329ff0c BUG: 1366817 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: https://review.gluster.org/17239 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: Jeff Darcy <jeff@pl.atyp.us> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
* tests: rebalance completed should only check the status for completedAtin Mukherjee2015-06-171-2/+2
| | | | | | | | | | | Change-Id: I1abc91cefaf16d1c8351f35e951c26078ef90544 BUG: 1227590 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/11055 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
* tests : fix spurious failure in bug-973073.tAtin Mukherjee2015-05-291-1/+0
| | | | | | | | | | | | remove_brick_completed needs the same fix as 02c04579 Change-Id: I1a65f9095e4b01e6bb014440fc89696a4eebf8ca BUG: 1226367 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/11006 Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Tested-by: Shyamsundar Ranganathan <srangana@redhat.com>
* tests: fix rebalance_completedJeff Darcy2015-03-261-1/+5
| | | | | | | | | | | | This was causing spurious faiures in bug-884455.t and possibly elsewhere. Change-Id: Iad6b7515ca0c7c485300f79dcd2477efc76877f8 BUG: 1163543 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/9994 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
* porting: Provide setfattr/getfattr implementationHarshavardhana2014-09-051-9/+9
| | | | | | | | | | | | | | | | - Use 'getfattr' properly avoid redundant options during xattr query - Untabify certain parts of tests (remove tabs) - Avoid backtick evaluation for certain values to make code more portable. - Use awk on FreeBSD/Darwin, since 'wc' implementation is broken and adds spurious spaces in its output. Change-Id: I7dcc0b70874e43b4cda8c306ed18a31b7a3f990a BUG: 1131713 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/8520 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Emmanuel Dreyfus <manu@netbsd.org>
* cluster/dht: Fix min-free-disk calculations when quota-deem-statfs is onKrutika Dhananjay2014-06-021-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PROBLEM: As part of file creation, DHT sends a statfs call to all of its sub-volumes and expects in return the local space consumption and availability on each one of them. This information is used by DHT to ensure that atleast min-free-disk amount of space is left on each sub-volume in the event that there ARE other sub-volumes with more space available. But when quota-deem-statfs is enabled, quota xlator on every brick unwinds the statfs call with volume-wide consumption of disk space. This leads to miscalculation in min-free-disk algo, thereby misleading DHT at some point, into thinking all sub-volumes have equal available space, in which case DHT keeps sending new file creates to subvol-0, causing it to become 100% full at some point although there ARE other subvols with ample space available. FIX: The fix is to make quota_statfs() behave as if quota xlator weren't enabled, thereby making every brick return only its local consumption and disk space availability. Change-Id: I211371a1eddb220037bd36a128973938ea8124c2 BUG: 1099890 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/7845 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Differentiate rebalance status and remove-brick status messagesggarg2014-05-021-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | previously when user triggred 'gluster volume remove-brick VOLNAME BRICK start' then command' gluster volume rebalance <volname> status' showing output even user has not triggred "rebalance start" and when user triggred 'gluster volume rebalance <volname> start' then command 'gluster volume remove-brick VOLNAME BRICK status' showing output even user has not run rebalance start and remove brick start. regression test failed in previous patch. file test/dht.rc and test/bug/bug-973073 edited to avoid regression test failure. now with this fix it will differentiate rebalance and remove-brick status messages. Signed-off-by: ggarg <ggarg@redhat.com> Change-Id: I7f92ad247863b9f5fbc0887cc2ead07754bcfb4f BUG: 1089668 Reviewed-on: http://review.gluster.org/7517 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* tests/quota: Wait till the rebalance is completeVarun Shastry2014-04-021-0/+1
| | | | | | | | | | | | Change-Id: Ia6f0c81fb1542ce1de965a69a61535691df056c3 BUG: 1077159 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/7380 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Justin Clift <justin@gluster.org> Tested-by: Justin Clift <justin@gluster.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/distribute: Ignore non-participating subvols for layout checksshishir gowda2013-04-091-7/+1
| | | | | | | | | | | | | | | | | | | | | | | When subvols-per-directory is < available subvols, then there are layouts which are not populated. This leads to incorrect identification of holes or overlaps. We need to ignore layouts, which have err == 0, and start == stop. In the current scenario (start == stop == 0). Additionally, in layout-merge, treat missing xattrs as err = 0. In case of missing layouts, anomalies will reset them. For any other valid subvoles, err != 0 in case of layouts being zeroed out. Also reverted back dht_selfheal_dir_xattr, which does layout calculation only on subvols which have errors. Change-Id: I9f57062722c9e8a26285e10675c31a78921115a1 BUG: 921408 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4668 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/distribute: Preserve file size during rebalance migrationshishir gowda2013-02-251-0/+13
| | | | | | | | | | | | | | | | | | If holes are encountered, then we do not write these to the dst, which sometimes causes file size to be lesser than src. Data is not corrupted, as when non-zero reads are received, we do write that data. Calling a truncrate to give file size to prevent it from being truncated to less than src in case the file end has holes. Thanks to Brian Foster for providing the test case Change-Id: I3cdd143b63ec8d797273d76189dff8b05eb9e551 BUG: 915554 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4574 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Create linkfile with file uid/gidshishir gowda2013-02-131-0/+72
Currently, linkfile creation happens as root. use uid/gid returned from _cbk (link/rename) to set the correct ownership of the link files. Also added test/dht.rc to implement common dht functions Change-Id: Iecdcf52d89fed8286670ce430b9d19deebd27b8c BUG: 884597 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4304 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
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