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* dht: dht_lookup_dir_cbk should set op_errno as local->op_errnov3.4.3beta1shishir gowda2014-03-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Two glusterfs clients return inconsistent errnos when the bricks of the volume were down. Consider two gluster mounts. Mount 1 was done when the bricks were online. Mount 2 was done after the bricks were killed, (using the 'glusterfs' command instead of the mount script). For any request, mount 1 will return ENOTCONN, where as mount 2 will return ENOENT. This happens because for the 2nd mount, a fuse would send a lookup on '/' for any request, as it hadn't been done yet. The client xlator returns ENOTCONN, but the dht_lookup_dir_cbk changed this to ENOENT unconditionally when aggregating. So, fuse returned ENOENT, even though the errno should have been ENOTCONN. backporting http://review.gluster.org/6072 BUG: 1019095 Change-Id: Iaa40dffefddfcaf1ab7736f5423d7f9d2ece1363 Original-author: Kaushal M <kaushal@redhat.com> Signed-off-by: shishir gowda <gowda.shishir@gmail.com> Reviewed-on: http://review.gluster.org/6471 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Ignore ENOENT errors for unlink of linkfilesAnand Avati2013-12-241-2/+4
| | | | | | | | | | | | | | | Backport of http://review.gluster.org/4971 If unlink of linkfile returns ENOENT, do not fail unlink. Proceed with unlinking of cached file. Change-Id: If7cec92b40c39d68dd9c3606c6c2c3a6bd67d27b BUG: 966848 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6586 Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: Del GF_READDIR_SKIP_DIRS key from dict for first_upshishir gowda2013-12-141-4/+11
| | | | | | | | | | | | | | | | | Currently, we sent GF_READDIR_SKIP_DIRS for all subvolumes if first_subvol != first_up_subvolume. Also first_up_subvolume can change with-in the life of a call and cbk. Saving the first_up_subvol in dht_local for checks. Back porting fix http://review.gluster.org/5577 BUG: 996474 Change-Id: I67b5bbe781e12812557b569b7d0a0beba4224159 Signed-off-by: shishir gowda <gowda.shishir@gmail.com> Reviewed-on: http://review.gluster.org/6468 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: set layout in inode ctx even if linkfile failsshishir gowda2013-12-101-1/+1
| | | | | | | | | | | | | | | | | Creating linkfile could have failed, but we dont care about linkfile for setting layout in the inode ctx (could be EEXIST etc.) So ignore @inode in cbk and pick it up from local->loc.inode Backporting http://review.gluster.org/6319 BUG: 1032859 Change-Id: Ic95e303a4c060900d041820d4faa68d1c4685b6a Original-author: Anand Avati <avati@redhat.com> Signed-off-by: shishir gowda <gowda.shishir@gmail.com> Reviewed-on: http://review.gluster.org/6470 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: handle NULL check before strlen/strcmp in fgetxattrAnand Avati2013-12-031-0/+1
| | | | | | | | | | | @key can legally be NULL. Handle that case without crashing. Change-Id: Iaae293caa7eeb24afc9cd2580799173e2ce00911 BUG: 1036879 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6402 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: set layout in inode ctx even if linkfile failsAnand Avati2013-11-261-1/+1
| | | | | | | | | | | | | Creating linkfile could have failed, but we dont care about linkfile for setting layout in the inode ctx (could be EEXIST etc.) So ignore @inode in cbk and pick it up from local->loc.inode Change-Id: I2952799d7ae0d3441b84b2ca2981afd75d7576e2 BUG: 1032859 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6358 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/dht: Ignore subvols with error in min-free-disk/inodesAmar Tumballi2013-09-101-2/+4
| | | | | | | | | | | | | | | | | | | Currently when selecting a alternative subvolume when hashed subvol has exceeded min-free-disk/inodes, we do not check if layouts have errors (including decommissioning). This leads to data being written to those subvolumes, and in case of decommissioning, will lead to data loss. BUG: 982919 > Original-Author: shishir gowda <sgowda@redhat.com> > Reviewed-on: http://review.gluster.org/5299 Change-Id: If301a86cf3ca5fad6529bd2e61382f9901663ba0 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5888 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* dht,posix: support for case discoveryAnand Avati2013-06-081-0/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is support for discovering a filename in a given directory which has a case insensitive match of a given name. It is implemented as a virtual extended attribute on the directory where the required filename is specified in the key. E.g: sh# getfattr -e "text" -n user.glusterfs.get_real_filename:FiLe-B /mnt/samba/patchy getfattr: Removing leading '/' from absolute path names # file: mnt/samba/patchy user.glusterfs.get_real_filename:FiLe-B="file-b" In reality, there can be multiple "answers" as the backend filesystem is case sensitive and there can be multiple files which can strcasecamp() successfully. In this case we pick the first matched file from the first responding server. If a matching file does not exist, we return ENOENT (and NOT ENODATA). This way the caller can differentiate between "unsupported" glusterfs API and file not existing. This API is used by Samba VFS to perform efficient discovery of the real filename without doing a full scan at the Samba level. Change-Id: I53054c4067cba69e585fd0bbce004495bc6e39e8 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5163 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/distribute: Prevent spurious multiple defrag crawlsshishir gowda2013-03-041-9/+14
| | | | | | | | | | | | | | | | | In dht_notify, we used to create a thread to start defrag crawls after we had heard from all child subvols. This was in-correct, as a later event, could also trigger the crawl again(due to the fact that all subvols had responded). The fix is to make sure, the thread is started only once after all subvols have responded the first time BUG: 916449 Change-Id: I1619344fbb1cb51d5e1db38d8a29821fa870fa8b Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4610 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/dht: Create linkfile with file uid/gidshishir gowda2013-03-041-3/+13
| | | | | | | | | | | | | | | | 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 BUG: 884597 Change-Id: I6bc0e04f62d4716fc033681e5678e852a1be7a2f Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4607 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/dht: pathinfo xattr changes for directoriesVenky Shankar2013-02-081-92/+223
| | | | | | | | | | | | | | | | | | | | Since directories have presence on all subvolumes there is no definite meaning of ->hashed_subvol or ->cached_subvol. getxattr() code path chooses ->cached_subvol for pathinfo extended attribute. While this makes sense of files, it makes less sense for directories. Further if a hashed or a cached subvolume is down, and there's a getxattr request for a directory, we return with an errno. This patch changes pathinfo extended attribute contents by aggregating information from all subvolumes that are up. Change-Id: I58adb741d63ccfd1d0239af75eb65f26f0fb384d Signed-off-by: Venky Shankar <vshankar@redhat.com> BUG: 856455 Reviewed-on: http://review.gluster.org/4047 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: ignore EEXIST error in mkdir to avoid GFID mismatchAnand Avati2013-02-031-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In dht_mkdir_cbk, EEXIST error is treated like a true error. Because of this the following sequence of events can happen, eventually resulting in GFID mismatch and (and possibly leaked locks and hang, in the presence of replicate.) The issue exists when many clients concurrently attempt creation of directory and subdirectory (e.g mkdir -p /mnt/gluster/dir1/subdir) 0. First mkdir happens by one client on the hashed subvolume. Only one client wins the race. Others racing mkdirs get EEXIST. Yet other "laggers" in the race encounter the just-created directory in lookup() on the hash dir. 1. At least one "lagger" lookup() notices that there are missing directories on other subvolumes (which the "winner" mkdir is yet to create), and starts off self-heal of the directory. 2. At least on some subvolumes, self-heal's mkdir wins the race against the "winner" mkdir and creates the directory first. This causes the "winner" mkdir to experience EEXIST error on those subvolumes. 3. On other subvolumes where "winner" mkdir won the race, self-heal experiences EEXIST error, but self-heal is properly translating that into a success (but mkdir code path is not -- which is the bug.) 4. Both mkdir and self-heal assign hash layouts to the just created directory. But self-heal distributes hash range across N (total) subvolumes, whereas mkdir distributes hash range across N - M (where M is the number of subvolumes where mkdir lost the race). Both the clients "cache" their respective layouts in the near future for all future creates inside them (evidence in logs) 5. During the creation of the subdirectory, two clients race again. Ideally winner performs mkdir() on the hashed subvolume and proceeds to create other dirs, loser experiences EEXIST error on the hashed subvolume and backs off. But in this case, because the two clients have different layout views of the parent directory (because of different hash splits and assignements), the hashed subvolumes for the new directory can end up being different. Therefore, both clients now win the race (they were never fighting against each other on a common server), assigning different GFIDs to the directory on their respective (different) subvolumes. Some of the remaining subvolumes get GFID1, others GFID2. Conclusion/Fix: Making mkdir translate EEXIST error as success (just the way self-heal is already rightly doing) will bring back truth to the design claim that concurrent mkdir/self-heals perform deterministic + idempotent operations. This will prevent the differing "hash views" by different clients and thereby also avoid GFID mismatch by forcing all clients to have a "fair race", because the hashed subvolume for all will be the same (and thereby avoiding leaked locks and hangs.) Change-Id: I84592fb9b8a3f739a07e2afb23b33758a0a9a157 BUG: 907072 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4459 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* cluster/dht: stack wind with cookiev3.4.0qa8Varun Shastry2013-01-311-16/+22
| | | | | | | | | | | | | | | Default_fops uses stack_wind_tail. It winds without creating the frame leading into wrong subvol return in the cookie. To avoid the problem caused by the same, we're getting the subvol by passing the cookie. Change-Id: I51ee79b22c89e4fb0b89e9a0bc3ac96c5b469f8f BUG: 893338 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/4388 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com> Tested-by: Anand Avati <avati@redhat.com>
* cluster/distribute: If cached_subvol is down, return ENOTCONN in lookupshishir gowda2013-01-211-1/+10
| | | | | | | | | | | | | When we follow a linkfile, and the lookup returns a ENOTCONN error, return the error, as the cached subvol is down, and lookup_everywhere wont succeed, but actually ends up clearing the linkfile, and clearing the namespace. Change-Id: I772bf71531bc646e8fb62d3e8549a5fe0f3896da BUG: 893378 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4383 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: update ctx-time only if we receive the new iattVarun Shastry2013-01-171-4/+4
| | | | | | | | | | | | | | | 1. Used local->postparent(contains merged iatt of all succesful calls) instead of postparent for dht ctx time update. 2. dht_inode_ctx_time_update avoided in case of opret -1. Change-Id: Ie04a7842a41c241f911b6a3f76267b996d27fb43 BUG: 881013 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/4338 Reviewed-by: Shishir Gowda <sgowda@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: fail fix-layout if any of the subvol is downshishir gowda2012-11-291-7/+15
| | | | | | | | | | | | | | | | If any subvolume is down, and a layout is re-written and hash values change, entry names in the downed subvol can be reused in the other subvol which got the same hash range. when the downed subvol is brought back up, duplicate entried might appear Also separated handling of ENOSPC and ENOTCONN error. Change-Id: I5ed93990425a4cee70df2dab7c7c119fdc87ad56 BUG: 860663 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4000 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Heal dir uid/gidshishir gowda2012-11-291-1/+41
| | | | | | | | | | | | Identify mismatching uid/gid in lookup, and trigger a syncop heal. uid/gid of subvol with latest ctime is trusted (local->prebuf). Change-Id: Ib5c4bc438e7f4b1f33080e73593f40f400e997f0 BUG: 862967 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/3964 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/distribute: send getxattr on LOCKINFO to only cached subvolumes.Raghavendra2012-11-271-1/+3
| | | | | | | | | | | | lk is sent to only cached subvolume. Hence there is no point in sending LOCKINFO to other children (even in case of directories). Change-Id: Ia20fc358dfa84cee9a52d1f613564ff6f25aa0c9 BUG: 808400 Signed-off-by: Raghavendra <raghavendra@gluster.com> Reviewed-on: http://review.gluster.org/4123 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: ignore empty ->hashed_subvol during lookupVenky Shankar2012-10-171-9/+1
| | | | | | | | | | | | | | | ->hashed_subvol is not valid (== NULL) when the subvolume the entity hashes to is down. For directories, we need not rely on ->hashed_subvol as we aggregate information from all subvolumes. So, during lookup, NULL ->hashed_subvol is ingored but logged. Change-Id: I306e4e274fe29d60ff028add4a6c3bcd67b2f314 Signed-off-by: Venky Shankar <vshankar@redhat.com> BUG: 856459 Reviewed-on: http://review.gluster.org/4046 Reviewed-by: Anand Avati <avati@redhat.com> Tested-by: Anand Avati <avati@redhat.com>
* cluster/distribute: Always return the latest time in struct iatt.shishir gowda2012-10-161-28/+120
| | | | | | | | | | | | | | | | | | | save the a/c/mtime in inode_ctx, and dht_inode_ctx_update checks the passed iatte, and updates the stat's time, and inode_ctx's time accordingly. For preparent times, only the iatt stat to be returned is updated, not the ctx. With this, update, WIPE is removed, as we would always be passing back the latest mtime, and hence cache times will be relevant. TODO-handle rename WIPE calls Change-Id: I8e4c738cd830f3fafeef789c9181f9c242ac96a2 BUG: 857791 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/3737 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* libglusterfs/dict: make 'dict_t' a opaque objectAmar Tumballi2012-09-061-14/+11
| | | | | | | | | | | | | | | * ie, don't dereference dict_t pointer, instead use APIs everywhere * other than dict_t only 'data_t' should be the valid export from dict.h * added 'dict_foreach_fnmatch()' API * changed dict_lookup() to use data_t, instead of data_pair_t Change-Id: I400bb0dd55519a7c5d2a107e67c8e7a7207228dc Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 850917 Reviewed-on: http://review.gluster.org/3829 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: don't leak upon GF_REALLOC failureJim Meyering2012-08-191-4/+5
| | | | | | | | | Change-Id: I7dfabcc2981df5c5a1e1a54c3135400a60626cd1 BUG: 846755 Signed-off-by: Jim Meyering <meyering@redhat.com> Reviewed-on: http://review.gluster.com/3798 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Optimize readdirp calls in DHTshishir gowda2012-08-131-0/+23
| | | | | | | | | | | | | | | | | Bring in option which is supported by posix xlator to filter out directory's entries from being returned. DHT would now request non-first subvols to filter out directory entries. dht xlator-option readdir-optimize will enable this optimization Change-Id: I35224bc81c9657f54f952efac02790276c35ded5 BUG: 838199 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.com/3772 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/distribute: Suppress user xattr mismatch log messageshishir gowda2012-07-251-1/+1
| | | | | | | | | | | | | | | | | Changing the log-level to DEBUG. Xattr mismatch can occur when parallel setxattr's race, or when one of the bricks was down. A subsequent setxattr will fix the condition when all the subvols are up. In this case, the 'user.swift' xattr used by ufo was out of sync, but did not cause any other error. Change-Id: I6fdff78869b8ff72c305bbe122033e6c1d9d3cff BUG: 838197 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.com/3722 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Mohammed Junaid <junaid@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* remove useless if-before-free (and free-like) functionsJim Meyering2012-07-131-2/+1
| | | | | | | | | | | | See comments in http://bugzilla.redhat.com/839925 for the code to perform this change. Signed-off-by: Jim Meyering <meyering@redhat.com> BUG: 839925 Change-Id: I10e4ecff16c3749fe17c2831c516737e08a3205a Reviewed-on: http://review.gluster.com/3661 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/distribute: set the inode layout in readdirp_cbk() for filesAmar Tumballi2012-05-311-0/+16
| | | | | | | | | | | | with this, inode-linking it in readdirp_cbk will be neater. Change-Id: Ie2cd646438f851e1755e9b6a3fc9898059bee359 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 816140 Reviewed-on: http://review.gluster.com/2717 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Handle ENOENT failure in dht_rmdir_opendir_cbkshishir gowda2012-05-141-2/+4
| | | | | | | | | | | | We should not treat ENOENT as a failure in rmdir. Change-Id: I1570d2be2bbafe7fc61ca39b8f7f68ee60d2c707 BUG: 806761 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/3327 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* license: dual license under GPLV2 and LGPLV3+Kaleb KEITHLEY2012-05-101-14/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note that the license was not changed in any of the following: .../argp-standalone/... .../booster/... .../cli/... .../contrib/... .../extras/... .../glusterfsd/... .../glusterfs-hadoop/... .../mod_clusterfs/... .../scheduler/... .../swift/... The license was not changed in any of the non-building xlators. The license was not changed in any of the xlators that seemed — to me — to be clearly server-side only, e.g. protocol/server Note too that copyright was changed along with the license; I did not change the copyright in files where the license did not change. If you find any errors or ommissions please don't hesitate to let me know. The complete list of files with the license change is: libglusterfs/src/byte-order.h libglusterfs/src/call-stub.c libglusterfs/src/call-stub.h libglusterfs/src/checksum.c libglusterfs/src/checksum.h libglusterfs/src/circ-buff.c libglusterfs/src/circ-buff.h libglusterfs/src/common-utils.c libglusterfs/src/common-utils.h libglusterfs/src/compat-errno.c libglusterfs/src/compat-errno.h libglusterfs/src/compat.c libglusterfs/src/compat.h libglusterfs/src/daemon.c libglusterfs/src/daemon.h libglusterfs/src/defaults.c libglusterfs/src/defaults.h libglusterfs/src/dict.c libglusterfs/src/dict.h libglusterfs/src/event-history.c libglusterfs/src/event-history.h libglusterfs/src/event.c libglusterfs/src/event.h libglusterfs/src/fd-lk.c libglusterfs/src/fd-lk.h libglusterfs/src/fd.c libglusterfs/src/fd.h libglusterfs/src/gf-dirent.c libglusterfs/src/gf-dirent.h libglusterfs/src/globals.c libglusterfs/src/globals.h libglusterfs/src/glusterfs.h libglusterfs/src/graph-print.c libglusterfs/src/graph-utils.h libglusterfs/src/graph.c libglusterfs/src/hashfn.c libglusterfs/src/hashfn.h libglusterfs/src/iatt.h libglusterfs/src/inode.c libglusterfs/src/inode.h libglusterfs/src/iobuf.c libglusterfs/src/iobuf.h libglusterfs/src/latency.c libglusterfs/src/latency.h libglusterfs/src/list.h libglusterfs/src/lkowner.h libglusterfs/src/locking.h libglusterfs/src/logging.c libglusterfs/src/logging.h libglusterfs/src/mem-pool.c libglusterfs/src/mem-pool.h libglusterfs/src/mem-types.h libglusterfs/src/options.c libglusterfs/src/options.h libglusterfs/src/rbthash.c libglusterfs/src/rbthash.h libglusterfs/src/run.c libglusterfs/src/run.h libglusterfs/src/scheduler.c libglusterfs/src/scheduler.h libglusterfs/src/stack.c libglusterfs/src/stack.h libglusterfs/src/statedump.c libglusterfs/src/statedump.h libglusterfs/src/syncop.c libglusterfs/src/syncop.h libglusterfs/src/syscall.c libglusterfs/src/syscall.h libglusterfs/src/timer.c libglusterfs/src/timer.h libglusterfs/src/trie.c libglusterfs/src/trie.h libglusterfs/src/xlator.c libglusterfs/src/xlator.h libglusterfsclient/src/libglusterfsclient-dentry.c libglusterfsclient/src/libglusterfsclient-internals.h libglusterfsclient/src/libglusterfsclient.c libglusterfsclient/src/libglusterfsclient.h rpc/rpc-lib/src/auth-glusterfs.c rpc/rpc-lib/src/auth-null.c rpc/rpc-lib/src/auth-unix.c rpc/rpc-lib/src/protocol-common.h rpc/rpc-lib/src/rpc-clnt.c rpc/rpc-lib/src/rpc-clnt.h rpc/rpc-lib/src/rpc-transport.c rpc/rpc-lib/src/rpc-transport.h rpc/rpc-lib/src/rpcsvc-auth.c rpc/rpc-lib/src/rpcsvc-common.h rpc/rpc-lib/src/rpcsvc.c rpc/rpc-lib/src/rpcsvc.h rpc/rpc-lib/src/xdr-common.h rpc/rpc-lib/src/xdr-rpc.c rpc/rpc-lib/src/xdr-rpc.h rpc/rpc-lib/src/xdr-rpcclnt.c rpc/rpc-lib/src/xdr-rpcclnt.h rpc/rpc-transport/rdma/src/name.c rpc/rpc-transport/rdma/src/name.h rpc/rpc-transport/rdma/src/rdma.c rpc/rpc-transport/rdma/src/rdma.h rpc/rpc-transport/socket/src/name.c rpc/rpc-transport/socket/src/name.h rpc/rpc-transport/socket/src/socket.c rpc/rpc-transport/socket/src/socket.h xlators/cluster/afr/src/afr-common.c xlators/cluster/afr/src/afr-dir-read.c xlators/cluster/afr/src/afr-dir-read.h xlators/cluster/afr/src/afr-dir-write.c xlators/cluster/afr/src/afr-dir-write.h xlators/cluster/afr/src/afr-inode-read.c xlators/cluster/afr/src/afr-inode-read.h xlators/cluster/afr/src/afr-inode-write.c xlators/cluster/afr/src/afr-inode-write.h xlators/cluster/afr/src/afr-lk-common.c xlators/cluster/afr/src/afr-mem-types.h xlators/cluster/afr/src/afr-open.c xlators/cluster/afr/src/afr-self-heal-algorithm.c xlators/cluster/afr/src/afr-self-heal-algorithm.h xlators/cluster/afr/src/afr-self-heal-common.c xlators/cluster/afr/src/afr-self-heal-common.h xlators/cluster/afr/src/afr-self-heal-data.c xlators/cluster/afr/src/afr-self-heal-entry.c xlators/cluster/afr/src/afr-self-heal-metadata.c xlators/cluster/afr/src/afr-self-heal.h xlators/cluster/afr/src/afr-self-heald.c xlators/cluster/afr/src/afr-self-heald.h xlators/cluster/afr/src/afr-transaction.c xlators/cluster/afr/src/afr-transaction.h xlators/cluster/afr/src/afr.c xlators/cluster/afr/src/afr.h xlators/cluster/afr/src/pump.c xlators/cluster/afr/src/pump.h xlators/cluster/dht/src/dht-common.c xlators/cluster/dht/src/dht-common.h xlators/cluster/dht/src/dht-diskusage.c xlators/cluster/dht/src/dht-hashfn.c xlators/cluster/dht/src/dht-helper.c xlators/cluster/dht/src/dht-inode-read.c xlators/cluster/dht/src/dht-inode-write.c xlators/cluster/dht/src/dht-layout.c xlators/cluster/dht/src/dht-linkfile.c xlators/cluster/dht/src/dht-mem-types.h xlators/cluster/dht/src/dht-rebalance.c xlators/cluster/dht/src/dht-rename.c xlators/cluster/dht/src/dht-selfheal.c xlators/cluster/dht/src/dht.c xlators/cluster/dht/src/nufa.c xlators/cluster/dht/src/switch.c xlators/cluster/stripe/src/stripe-helpers.c xlators/cluster/stripe/src/stripe-mem-types.h xlators/cluster/stripe/src/stripe.c xlators/cluster/stripe/src/stripe.h xlators/features/index/src/index-mem-types.h ¹ xlators/features/index/src/index.c ¹ xlators/features/index/src/index.h ¹ xlators/performance/io-cache/src/io-cache.c xlators/performance/io-cache/src/io-cache.h xlators/performance/io-cache/src/ioc-inode.c xlators/performance/io-cache/src/ioc-mem-types.h xlators/performance/io-cache/src/page.c xlators/performance/io-threads/src/io-threads.c xlators/performance/io-threads/src/io-threads.h xlators/performance/io-threads/src/iot-mem-types.h xlators/performance/md-cache/src/md-cache-mem-types.h xlators/performance/md-cache/src/md-cache.c xlators/performance/quick-read/src/quick-read-mem-types.h xlators/performance/quick-read/src/quick-read.c xlators/performance/quick-read/src/quick-read.h xlators/performance/read-ahead/src/page.c xlators/performance/read-ahead/src/read-ahead-mem-types.h xlators/performance/read-ahead/src/read-ahead.c xlators/performance/read-ahead/src/read-ahead.h xlators/performance/symlink-cache/src/symlink-cache.c xlators/performance/write-behind/src/write-behind-mem-types.h xlators/performance/write-behind/src/write-behind.c xlators/protocol/auth/addr/src/addr.c ¹ xlators/protocol/auth/login/src/login.c ¹ xlators/protocol/client/src/client-callback.c xlators/protocol/client/src/client-handshake.c xlators/protocol/client/src/client-helpers.c xlators/protocol/client/src/client-lk.c xlators/protocol/client/src/client-mem-types.h xlators/protocol/client/src/client.c xlators/protocol/client/src/client.h xlators/protocol/client/src/client3_1-fops.c ¹ Copyright only, license reverted to original Change-Id: If560e826c61b6b26f8b9af7bed6e4bcbaeba31a8 BUG: 820551 Signed-off-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.com/3304 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/dht: rmdir should succeed last on the hashed subvolshishir gowda2012-05-081-2/+112
| | | | | | | | | | | | | | | | | mkdir and rename both first happen on the hashed subvol. Rmdir should succeed, only if all non hashed subvol succeed, and finally removal from hashed_subvol succeeds. if hashed_subvol is unavailable, then rmdir should be sent on all subvols Change-Id: I1bf5d5fc25393d0e2fde13ae403cf867a01f5ec7 BUG: 773187 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/3202 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/distribute: handle dht_layout_normalize errors differently inRaghavendra G2012-04-231-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | dht_lookup_dir_cbk and dht_discover_complete. return value from dht_layout_normalize is interpreted as follows: ret > 0 - number of subvolumes returned ENOENT errors. ret = 0 - no anomalies found. ret < 0 - there are holes/overlaps. We need to handle errors differently in dht_discover_cbk because, if a subvolume is newly added, the directory will not be present on it and we cannot create a directory there since a nameless lookup has resulted execution in this code-path. Hence if directory is guaranteed to be present in atleast one subvolume and there are no holes/overlaps in the layout, lookup can be treated as successful. there is no change in behaviour dht_lookup_dir_cbk caused by this patch. Change-Id: I9b0b510f1c7de187be95a47da6c9ec57b5e38d1d BUG: 802233 Signed-off-by: Raghavendra G <raghavendra@gluster.com> Reviewed-on: http://review.gluster.com/3069 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Remove un-used pathinfo code for link filesshishir gowda2012-04-181-18/+0
| | | | | | | | | | | | Currently, we do not return LINK: attributes for a file in pathinfo requests. Change-Id: If8667bd6af06de3d11c37dd0a09726dfe1d2e330 BUG: 795289 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/3175 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* cluster/dht: Handle failures in getxattr_cbkshishir gowda2012-04-171-3/+16
| | | | | | | | | | Change-Id: Ifbce2d69f0fdd0c45cba92b6fc2dffe13c60de28 BUG: 810106 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/3156 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* dht/rebalance: Handle ASSERT_ON_CHILD_DOWN gracefullyshishir gowda2012-04-131-1/+5
| | | | | | | | | | | | | | | | In rebalance process, instead of terminating, send a stop event. The migration in question will either complete or be handled as error. Also, handle few syncop calls as errors, instead of just logging them. Change-Id: If6ed54474cb0f1fe0e28a5765e6d90966740dfde BUG: 811444 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/3120 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/dht: send dict with linkto key for lookup in rmdir_readdirpshishir gowda2012-03-291-1/+23
| | | | | | | | | | | | | Without this, if there are any stale link files, rmdir fails with ENOEMPTY error. Change-Id: I7056b272122eb5540c22412856f46f638774c119 BUG: 807246 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/3035 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* cluster/dht : Acl fix for distribute directory selfhealKaushal M2012-03-261-0/+39
| | | | | | | | | | | | Send acl xattrs, if present in the xattrs returned during lookup, during directory self-heal. Change-Id: I5337bbd3f3963aeed500a8a552e5f6713089b53e BUG: 764787 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.com/737 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: adding extra data for fopsAmar Tumballi2012-03-221-148/+181
| | | | | | | | | | | | | with this change, the xlator APIs will have a dictionary as extra argument, which is passed between all the layers. This can be utilized for overloading in some of the operations. Change-Id: I58a8186b3ef647650280e63f3e5e9b9de7827b40 Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 782265 Reviewed-on: http://review.gluster.com/2960 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* rpc-lib: memleak fix in rpcsvc_volume_allowedRajesh Amaravathi2012-03-171-1/+1
| | | | | | | | | | Change-Id: Iaa6baa4a3e036b2b5c808ea5e79017fffeb80a24 BUG: 801754 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.com/2956 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/distribute: send proper 'dict' in readdirp()Amar Tumballi2012-03-071-13/+21
| | | | | | | | | | | | | if we do the STACK_WIND from readdirp_cbk(), we were not sending the right dictionary which made our linkfile determination a failure. Change-Id: Ie3f26748608f1a81123fe475d8a42bf2717475c3 Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 799887 Reviewed-on: http://review.gluster.com/2869 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shishir Gowda <shishirng@gluster.com>
* fops/removexattr: prevent users from removing glusterfs xattrsRajesh Amaravathi2012-03-051-2/+10
| | | | | | | | | | | | | | | | | | | | | | | * Each xlator prevents the user from removing xlator-specific xattrs like trusted.gfid by handling it in respective removexattr functions. * For xlators which did not define remove and fremovexattr, the functions have been implemented with appropriate checks. xlator | fops-added _______________|__________________________ | 1. stripe | removexattr and fremovexattr 2. quota | removexattr and fremovexattr Change-Id: I98e22109717978134378bc75b2eca83fefb2abba BUG: 783525 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.com/2836 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* Introduce new extended attribute: node-uuidVenky Shankar2012-02-221-51/+70
| | | | | | | | | | | | | | | | Request for trusted.glusterfs.node-uuid returns pathinfo like string but containing the UUID of glusterd instead of the backend path for the requested file. This info is benificial for tasks like parallel rebalance that will make use of the UUID for data locality. Change-Id: I766a09cc4a5f63aebd11c73107924a1b29242dcf BUG: 772610 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.com/2614 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shishir Gowda <shishirng@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* core: utilize mempool for frame->local allocationsAmar Tumballi2012-02-211-2/+1
| | | | | | | | | | | | | | | in each translator, which uses 'frame->local', we are using GF_CALLOC/GF_FREE, which would be costly considering the number of allocation happening in a lifetime of 'fop'. It would be good to utilize the mem pool framework for xlator's local structures, so there is no allocation overhead. Change-Id: Ida6e65039a24d9c219b380aa1c3559f36046dc94 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 765336 Reviewed-on: http://review.gluster.com/2772 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/distribute: send the right 'dict' for check_is_linkfile()Amar Tumballi2012-02-211-8/+34
| | | | | | | | | | | | earlier we were using 'check_is_linkfile_wo_dict()' for readdirp_cbk(), which is no more required now. Change-Id: I52295e08f8c494b7a081cfc684164a7f72562d0d Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 794641 Reviewed-on: http://review.gluster.com/2763 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/dht: Support for hardlink rebalance when decommissioningshishir gowda2012-02-191-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The support for hardlink rebalance is only available for decommissioning of a node. this can be triggered in two ways 1. remove-brick start 2. if decommission node value is set in vol file, then a normal rebalance command The way we handle it is- if (nlink > 1) do * if src file doesnt have linkto xattr * mark src's linkto to the dst * else * perform a link on the dst * do a look up * if nlinks = dst.nlinks * migrate data * else * continue crawling done Signed-off-by: shishir gowda <shishirng@gluster.com> Change-Id: If43b5524b872fd1413e9f7aa7f436cb244e30d8d BUG: 763844 Reviewed-on: http://review.gluster.com/2737 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* cluster/dht: Handle get cached/hashed subvol failures gracefullyshishir gowda2012-02-191-1/+38
| | | | | | | | | Change-Id: I7a41c2876be04acd166b2004d9aa66af078d32ea BUG: 790328 Signed-off-by: shishir gowda <shishirng@gluster.com> Reviewed-on: http://review.gluster.com/2757 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* cluster/dht: Exit clean when assert_no_child_down is enabledVijay Bellur2012-02-191-1/+1
| | | | | | | | | Change-Id: If90b1080edcf3792f8590492b585a6dd48fac18e BUG: 783249 Signed-off-by: Vijay Bellur <vijay@gluster.com> Reviewed-on: http://review.gluster.com/2664 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* cluster/dht: Rebalance will be a new glusterfs processshishirng2012-02-191-10/+57
| | | | | | | | | | | | | | | | | | | | | | | | rebalance will not use any maintainance clients. It is replaced by syncops, with the volfile. Brickop (communication between glusterd<->glusterfs process) is used for status and stop commands. Dept-first traversal of dir is maintained, but data is migrated as and when encounterd. fix-layout (dir) do Complete migrate-data of dir fix-layout (subdir) done Rebalance state is saved in the vol file, for restart-ability. A disconnect event and pidfile state determine the defrag-status Signed-off-by: shishirng <shishirng@gluster.com> Change-Id: Iec6c80c84bbb2142d840242c28db3d5f5be94d01 BUG: 763844 Reviewed-on: http://review.gluster.com/2540 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* complete the implementation of missing 'f**xattr()' fopsAmar Tumballi2012-01-251-0/+61
| | | | | | | | | | | | | | in debug/* and cluster/* translators and a syncop_fsetxattr() added a test case for testing the working of 'f-fop()' on fuse mount. Change-Id: I0c2aeeb30a0fb382ef2495cca1e66b00abaffd35 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 766571 Reviewed-on: http://review.gluster.com/802 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core: add 'fremovexattr()' fopAmar Tumballi2012-01-251-0/+57
| | | | | | | | | | | so operations can be done on fd for extended attribute removal Change-Id: Ie026f1b53793aeb4ae33e96ea5408c7a97f34bf6 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 766571 Reviewed-on: http://review.gluster.com/778 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core: get xattrs also as part of readdirpAmar Tumballi2012-01-251-7/+9
| | | | | | | | | | | | | readdirp_req() call sends a dict_t * as an argument, which contains all the xattr keys for which the entries got in readdirp_rsp() are having xattr value filled dictionary. Change-Id: I8b7e1290740ea3e884e67d19156ce849227167c0 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 765785 Reviewed-on: http://review.gluster.com/771 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core: GFID filehandle based backend and anonymous FDsAnand Avati2012-01-201-0/+246
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. What -------- This change introduces an infrastructure change in the filesystem which lets filesystem operation address objects (inodes) just by its GFID. Thus far GFID has been a unique identifier of a user-visible inode. But in terms of addressability the only mechanism thus far has been the backend filesystem path, which could be derived from the GFID only if it was cached in the inode table along with the entire set of dentry ancestry leading up to the root. This change essentially decouples addressability from the namespace. It is no more necessary to be aware of the parent directory to address a file or directory. 2. Why ------- The biggest use case for such a feature is NFS for generating persistent filehandles. So far the technique for generating filehandles in NFS has been to encode path components so that the appropriate inode_t can be repopulated into the inode table by means of a recursive lookup of each component top-down. Another use case is the ability to perform more intelligent self-healing and rebalancing of inodes with hardlinks and also to detect renames. A derived feature from GFID filehandles is anonymous FDs. An anonymous FD is an internal USABLE "fd_t" which does not map to a user opened file descriptor or to an internal ->open()'d fd. The ability to address a file by the GFID eliminates the need to have a persistent ->open()'d fd for the purpose of avoiding the namespace. This improves NFS read/write performance significantly eliminating open/close calls and also fixes some of today's limitations (like keeping an FD open longer than necessary resulting in disk space leakage) 3. How ------- At each storage/posix translator level, every file is hardlinked inside a hidden .glusterfs directory (under the top level export) with the name as the ascii-encoded standard UUID format string. For reasons of performance and scalability there is a two-tier classification of those hardlinks under directories with the initial parts of the UUID string as the directory names. For directories (which cannot be hardlinked), the approach is to use a symlink which dereferences the parent GFID path along with basename of the directory. The parent GFID dereference will in turn be a dereference of the grandparent with the parent's basename, and so on recursively up to the root export. 4. Development --------------- 4a. To leverage the ability to address an inode by its GFID, the technique is to perform a "nameless lookup". This means, to populate a loc_t structure as: loc_t { pargfid: NULL parent: NULL name: NULL path: NULL gfid: GFID to be looked up [out parameter] inode: inode_new () result [in parameter] } and performing such lookup will return in its callback an inode_t populated with the right contexts and a struct iatt which can be used to perform an inode_link () on the inode (without a parent and basename). The inode will now be hashed and linked in the inode table and findable via inode_find(). A fundamental change moving forward is that the primary fields in a loc_t structure are now going to be (pargfid, name) and (gfid) depending on the kind of FOP. So far path had been the primary field for operations. The remaining fields only serve as hints/helpers. 4b. If read/write is to be performed on an inode_t, the approach so far has been to: fd_create(), STACK_WIND(open, fd), fd_bind (in callback) and then perform STACK_WIND(read, fd) etc. With anonymous fds now you can do fd_anonymous (inode), STACK_WIND (read, fd). This results in great boost in performance in the inbuilt NFS server. 5. Misc ------- The inode_ctx_put[2] has been renamed to inode_ctx_set[2] to be consistent with the rest of the codebase. Change-Id: Ie4629edf6bd32a595f4d7f01e90c0a01f16fb12f BUG: 781318 Reviewed-on: http://review.gluster.com/669 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
generated by cgit (git 2.34.1) at 2024-05-10 22:04:22 +0000