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* performance/stat-prefetch: use STACK_UNWIND_STRICT for unwinding.Raghavendra G2009-11-242-93/+105
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 269 (Add a specialized STACK_UNWIND macro for each FOP) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=269
* cluster/afr: Unlock only those paths which have been locked during rename.Vikas Gorur2009-11-241-77/+142
| | | | | | | | | | | For ENTRY_RENAME_TRANSACTIONs, keep track separately whether the lower_path and the higher_path have been locked, and unlock only those which have been. Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 112 (parallel deletion of files mounted by different clients on the same back-end hangs and/or does not completely delete) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=112
* cluster/afr: Fix handling of revalidate lookups.Vikas Gorur2009-11-242-24/+38
| | | | | | | | | | | | | | | | This patch does two things related to revalidate: 1) If a revalidate fails on any subvolume, the entire lookup call is failed. 2) Self-heal is not triggered on a revalidate if revalidate has failed on any subvolume. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 389 (auto-heal fails randomly and causes "Stale NFS file handle" errors) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=389
* storage/posix: Fix condition typo.Vikas Gorur2009-11-201-1/+1
| | | | | | | | | | | Do comparision instead of assignment in if-condition in posix_link. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 254 (storage/posix has to do inode number transformation wherever it unwinds with a stat structure) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=254
* performance/io-cache: don't use stat got in read_cbk if it is zero-filled.Raghavendra G2009-11-202-16/+29
| | | | | | | | | | | | - translators like io-cache, read-ahead return a zero-filled stbuf in readv_cbk and usage of zero filled stat for cache validation is not correct. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 376 (server-side io-cache is preventing client-side io-cache from working) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=376
* performance/stat-prefetch: don't cache dentries corresponding to directory.Raghavendra G2009-11-191-0/+4
| | | | | | | | | | | | | - distribute picks up the inode number from hashed subvolume. But readdir is done from different subvolumes based on the offset. Hence there is a possibility of inode number and device number for directories being inconsistent between two stat calls. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 371 (rm -rf fails on stat-prefetch.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=371
* performance/stat-prefetch: don't use pre-allocated dirent structure in ↵Raghavendra G2009-11-191-8/+23
| | | | | | | | | | | | | | sp_get_cache_entry. - since we don't know the size of dentry before calling sp_get_cache_entry, we must dynamically allocate the dentry in sp_cache_get_entry and copy the contents from cache. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 371 (rm -rf fails on stat-prefetch.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=371
* cluster/distribute: copy the stat structure while copying dentries in ↵Raghavendra G2009-11-191-0/+2
| | | | | | | | | | | | | readdirp_cbk. - only the transformed inode number was being copied, leaving other fields of stat 0. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 371 (rm -rf fails on stat-prefetch.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=371
* debug/error-gen: Correct log messages in init function.vinayak hegde2009-11-191-3/+3
| | | | | | | | Signed-off-by: Vinayak Hegde <vinayak@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 291 (feature enhancement of error-gen translator) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=291
* Check for other return values as well from call to inode_path.Pavan Sondur2009-11-191-2/+2
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 170 (Auto-heal fails on files that are open()-ed/mmap()-ed) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=170
* cluster/stripe: Wrong variable is checked after calloc.vinayak hegde2009-11-191-1/+1
| | | | | | | | Signed-off-by: Vinayak Hegde <vinayak@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 368 (setattr on a non-regular file makes glusterfs crash) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=368
* protocol/client: Changed default ping-timeout to 42Vijay Bellur2009-11-191-2/+2
| | | | | | | | | | | | | This change is necessary to avoid frequent disconnections between client and server under load. A disconnect-connect sequence is costly in terms of clean up and re-building of context, self-heals etc. This value should be optimal for most use cases. Users requiring a lower ping-timeout value need to configure it explicitly. Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 384 (Increase default timeout in client protocol) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=384
* Do not access a free'd lock while releasing all inodelks of transport.Pavan Sondur2009-11-191-6/+4
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 222 (Enhance Internal locks to support multilple domains and rewrite inodelks) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=222
* cluster/afr: Handle op_ret properly in opendir_cbkVikas Gorur2009-11-191-2/+3
| | | | | | | | | | | Change the success condition to op_ret >= 0 instead of op_ret == 0. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 249 (Self heal of a file that does not exist on the first subvolume) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=249
* protocol/server: add debug messages.Raghavendra G2009-11-181-0/+12
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 369 (Samba does not work with booster.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=369
* Upgrade FUSE protocol to rev. 7.13Csaba Henk2009-11-161-3/+9
| | | | | | | | | | | | | 2.6.32 will feature FUSE proto 7.13 which lets us tune the maximal number of in-kernel backgrounded requests via INIT. Hereby we live up to this enhancement. Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 385 (Upgrade FUSE protocol to rev. 7.13) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=385
* fixing a crash in posix (on 32bit)Amar Tumballi2009-11-161-1/+3
| | | | | | | | | | | | fd_ctx_get () was getting passed with type punned argument, now corrected by passing the right argument, and doing the typecasting later Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 383 (glusterfs server crash on 2.0.8) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=383
* fixes in stripeAmar Tumballi2009-11-161-2/+3
| | | | | | | | | | | | | * fix in stripe readv, so that a read request which falls in two (or more) subvolumes, depending on stripe-size works fine. * fix in stripe_setattr_cbk, where 'postop' stat structure was returning wrong 'st_size'. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 368 (setattr on a non-regular file makes glusterfs crash) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=368
* mount/fuse: Assign the right inode to fuse_entry_out in fuse_create_cbk().Vijay Bellur2009-11-161-2/+2
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 380 ([3.0.0 pre1] Crash in fuse_create_cbk) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=380
* protocol/client: preserve open/create flags in fdctx for reopeningAnand Avati2009-11-132-0/+8
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 170 (Auto-heal fails on files that are open()-ed/mmap()-ed) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=170
* performance/quick-read: set return value to zero after successful init.Raghavendra G2009-11-131-0/+2
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 374 (quick read fails to initialize if no options are given) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=374
* mount/fuse: Prevent a hang on the mount point if no server is up when the ↵Pavan Sondur2009-11-131-4/+49
| | | | | | | | | | client is started. Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 373 (Spawn fuse thread after a parent_up and wait and block until child_up) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=373
* cluster/afr: Fix self-heal loop driver termination logic.Vikas Gorur2009-11-131-7/+19
| | | | | | | | Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 320 (Improve self-heal performance) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320
* cluster/afr: Ensure directory contents are in sync during opendir.Vikas Gorur2009-11-135-10/+281
| | | | | | | | | | | | | | | | | | | | | | The problem: If some files on the first subvolume disappeared without leaving a trace in the entry changelog (this can happen, for example, when an fsck has deleted files or when a hard drive is replaced), those files would never be self-healed even though they would be present on the second subvolume. This is because readdir is sent only to the first subvolume, and since the files don't appear in the directory listing, no lookup would ever be sent on them. This patch fixes this problem by doing a readdir on all the subvolumes during the first opendir on a directory inode. If a discrepancy in the contents is detected, entry self-heal in a special "force merge" mode is triggered on that directory. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 249 (Self heal of a file that does not exist on the first subvolume) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=249
* cluster/afr: Refactored inode context bitmasks.Vikas Gorur2009-11-131-6/+10
| | | | | | | | | | | Defined symbolic constants for the bit masks and made 'split-brain' a single bit field in the ctx. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 249 (Self heal of a file that does not exist on the first subvolume) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=249
* mount/fuse: Do readdirp in fuse_readdir.Vikas Gorur2009-11-131-2/+2
| | | | | | | | | | | Do the readdirp FOP in fuse_readdir. This is needed because dht_readdir is not "reliable", whereas dht_readdirp is. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 249 (Self heal of a file that does not exist on the first subvolume) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=249
* cluster/dht: Do readdir in dht_readdir instead of readdirpVikas Gorur2009-11-131-1/+1
| | | | | | | | | | | | The readdir call will not be used by applications (fuse will only ever send readdirp), but it will be used by afr to do directory self-heal at the time of opendir. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 249 (Self heal of a file that does not exist on the first subvolume) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=249
* fix a crash in debug/traceAmar Tumballi2009-11-131-4/+4
| | | | | | | | | | | stat structure (which is an argument to function) was getting freed instead of string which actually should have freed. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 378 (trace segfault in trace_create_cbk) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=378
* protoocl/client: file directory reopen supportAnand Avati2009-11-132-117/+631
| | | | | | | | | | | | reopen files and directories which were open before a disconnection after reconnecting. operations on files/directories which could not be opened continue to return EBADFD Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 170 (Auto-heal fails on files that are open()-ed/mmap()-ed) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=170
* protocol/client: whitespace cleanupAnand Avati2009-11-132-3631/+3631
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 170 (Auto-heal fails on files that are open()-ed/mmap()-ed) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=170
* cluster/stripe: Initialize frame->local before checking for directory or ↵vinayak hegde2009-11-131-18/+22
| | | | | | | | | | regular files. Signed-off-by: Vinayak Hegde <vinayak@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 368 (setattr on a non-regular file makes glusterfs crash) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=368
* cluster/stripe: Set local->inode value before referring it.vinayak hegde2009-11-121-1/+7
| | | | | | | | Signed-off-by: Vinayak Hegde <vinayak@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 362 (GlusterFS crash while doing mkdir in stripe setup) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=362
* cluster/stripe: local was not being set in stripe_mknod_ifreg_setxattr_cbk()Vijay Bellur2009-11-121-0/+2
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 367 (GlusterFS crash while doing mknod in stripe setup) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=367
* Add unhashed-sticky-bit option to volume_options structureSachidananda2009-11-121-0/+3
| | | | | | | | Signed-off-by: Sachidananda <sac@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 365 (unhashed-sticky-bit is not recognized) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=365
* Add glusterfs-volgen to master, change fusermount options and other changes ↵Pavan Sondur2009-11-111-1/+1
| | | | | | | | | | | | | | | | to rpm spec file. The patch has the following changes: * Rename glusterfs-volgen.py and include it in the rpm spec file * Enable fusermount by default. Change fusermount configure option from disable to enable. * Remove BDB from configure.ac, essentially removing it from the normal build. * Remove all dependencies on fuse in the rpm spec file. Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 343 (Placeholder bug for adding volgen into rpm, bdb makefile changes, etc) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=343
* performance/stat-prefetch: In lookup_cbk do not set error no to EINVAL, when ↵vinayak hegde2009-11-051-3/+0
| | | | | | | | | | inode_ctx_get returns -1. Signed-off-by: vinayak <vinayak@laptop.(none)> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 360 (All fop fails when stat-prefetch is loaded on afr.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=360
* cluster/afr: In fop structure afr_readdirp is not correctly registered.vinayak hegde2009-11-051-1/+1
| | | | | | | | Signed-off-by: Vinayak Hegde <vinayak@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 360 (All fop fails when stat-prefetch is loaded on afr.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=360
* performance/stat-prefetch: In sp_readdir_cbk op_ret value is not handled.vinayak hegde2009-11-051-0/+4
| | | | | | | | Signed-off-by: Vinayak Hegde <vinayak@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 360 (All fop fails when stat-prefetch is loaded on afr.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=360
* Remove fuse_lowlevel.h from xlator.h in libglusterfs.Pavan Sondur2009-11-031-2/+2
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 343 (Placeholder bug for adding volgen into rpm, bdb makefile changes, etc) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=343
* cluster/afr: Bail out of the self-heal driver loops as soon as possibleVikas Gorur2009-11-031-4/+4
| | | | | | | | | | | | Don't wait for the next recursive call to sh_{full,diff}_loop_driver to decide that we've reached the end of file, as the frame could have been destroyed by that time (if subvolumes are posix). Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 320 (Improve self-heal performance) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320
* Remove unnecessary log message. It also accesses a freed lock after an 'unlock'.Pavan Sondur2009-11-031-6/+0
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 222 (Enhance Internal locks to support multilple domains and rewrite inodelks) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=222
* Wrong variable is checked after stat call.Sachidananda2009-11-031-2/+2
| | | | | | | | Signed-off-by: Sachidananda <sac@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 355 (Wrong variable checked after a stat call) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=355
* storage/posix: Changed error message displayed for option background-unlink.Vijay Bellur2009-11-021-1/+1
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 352 (Wrong message logged for option `background-unlink') URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=352
* features/locks: Do not try to set value in dict when lookup has failed.v3.0.0pre1Vijay Bellur2009-11-011-35/+42
| | | | | | | | | | | | | | lock-count was being set without checking for op_ret from lookup. This would cause a lot of Critical messages in the log as dict would be NULL in case of a lookup failure. Also, removed some trailing white spaces and did some minor re-factoring. Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 306 (Enhance locks to aid debugging) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=306
* cluster/afr: Don't try to self-heal if there are locks heldVikas Gorur2009-10-302-1/+18
| | | | | | | | | | | If the inodelk_count or entrylk_count is positive on a file/directory, don't try to do self-heal on it. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 326 ([2.0.8rc9] Spurious self-heal) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=326
* performance/io-cache: change the data-types to be big enough to hold size of ↵Raghavendra G2009-10-302-5/+5
| | | | | | | | | data flushed. Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 335 (Io-cache optimization) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
* Fix logic while granting blocked entrylks, which could run into an infinite ↵Pavan Sondur2009-10-301-5/+6
| | | | | | | | | | loop. Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 222 (Enhance Internal locks to support multilple domains and rewrite inodelks) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=222
* protocol/server: fix leak of xattrop dictionaryAnand Avati2009-10-291-1/+3
| | | | | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 315 (generation number support) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=315
* cluster/afr: Move deleted files to /.trash in entry self-heal.Vikas Gorur2009-10-294-33/+226
| | | | | | | | | | | | | | | | | If entry self-heal determines that a file/directory should be deleted from a subvolume, move that entry to a directory called "/.trash" on that subvolume. This is for two reasons: 1) It limits the damage that can be done by a "wrong" entry self-heal. 2) It solves the problem of a to-be-deleted directory not being empty. Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 227 (replicate selfheal does not remove directory with contents in it) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=227
* performance/io-cache: change the hash function used for rbtree based hash table.Raghavendra G2009-10-292-12/+16
| | | | | | | | | | | | | | | - the earlier hash function does not distribute pages uniformly for offsets that fit into 32 bits. The reason is that the hash function just xors the contents of the key 4 bytes at a time with the current value of hash. Hence for keys that fit into 32 bits, the hash will be the key itself. Since we are using the rounded_offset (which is a multiple of 128KB) as the key, the key will be exactly divisible by the number of buckets configured (4096) resolving all the pages into the first bucket. Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 335 (Io-cache optimization) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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