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* posix: perform readdir filling in locked regionAnand Avati2011-07-161-85/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When two application threads share an open dir fd (DIR *) and issue readdirs, storage/posix will receive separate readdir fops in separate threads in parallel. This has two-fold issues 1. In the following pair of operations - entry = readdir(dir) and strcpy (gf_dirent->name, entry->d_name) @entry is a static buffer in libc which can get reused by another thread to get filled with a longer name. This can cause the second operation to overflow the buffer as the allocation was for the smaller name. 2. In the following pair of operations - seekdir (dir, offset) and entry = readdir(dir) If two threads are executing these sequence in parallel in separate threads, then one of them will end up reading wrong/unexpected entries. It would be sufficient to fix 1. by using readdir_r but that still keeps the second race open. Hence the patch moves all the set of operations to a locked region which solves both races. Change-Id: I36e596a96e254d3a82ff5f3669fa67ec72ef0833 Signed-off-by: Anand Avati <avati@gluster.com> BUG: 3171 (Crash in server) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=3171
* storage/posix: detect race in posix_rename()Anand Avati2011-07-121-0/+23
| | | | | | | | | | | | detect a race in rename between two clients by checking for reassigned gfid or presence of dir when not expecting. checks not necessary for rename of files. Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2522 ([glusterfs-3.1.3qa8]: rm -rf shows invalid argument) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2522
* posix: fix GFID assignment race between mkdir and lookupAnand Avati2011-06-171-1/+69
| | | | | | | | | | | In lookup, treat inodes which have recent ctime and no GFID as though they are still getting created by another thread and return ENOENT Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2994 ([glusterfs-3.2.1qa2]: untar and rm in parallel hangs untar) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2994
* posix: Set op_errno to ENOMEM on failed iobuf_getShehjar Tikoo2011-03-111-0/+1
| | | | | | | | | | | This prevents a situation where op_ret for the read fop is -1 but the op_errno is still 0. Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1977 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1977
* posix: Handle offset greater than file size of EOF determinationShehjar Tikoo2011-03-111-0/+2
| | | | | | | | Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1977 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1977
* Solaris xattr support for symlink and special files.v3.1.3qa3shishir gowda2011-03-041-3/+13
| | | | | | | | | | | | | | | | | | Since glusterfs uses xattr for storing gfid, and xattr support for symlinks and special files does not exist in solaris. The work around is provided by creating hidden files under export directory on solaris hosts only. the hidden files ares maintained in .glusterfs_xattr_inode directory, and all xattr ops on symlink and special files are redirected to respective inodes. All dir entries with name starting as .glusterfs (GF_HIDDEN_PATH) will not be shown in readdir ops. Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2213 (Symlink fails with ENODATA) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2213
* v2 Prevent removal of trusted.gfid xattrshishir gowda2011-03-011-0/+6
| | | | | | | | Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2461 (remove xattr of trusted.gfid succeeds) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2461
* storage/posix: set op_ret to -1 when setgid_override fails.Raghavendra G2011-02-221-5/+18
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2409 (crash in stat prefetch) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2409
* storage/posix: in opendir, allocate proper size for fd ctx pointerAmar Tumballi2011-01-071-1/+1
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2280 (wrong size allocated for posix_fd in posix.c:posix_opendir()) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2280
* gfid: disable setting/getting of gfid from higher level translatorsAnand Avati2010-12-061-4/+12
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2196 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2196
* check whether the file is a symlink while doing utimesRaghavendra Bhat2010-12-061-1/+19
| | | | | | | | Signed-off-by: Raghavendra Bhat <raghavendrabhat@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 881 (GlusterFS daemon hangs on replication of symlink (3.0.4)) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=881
* glusterd-rebalance: if file is open, don't do rebalanceAmar Tumballi2010-10-191-0/+25
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1934 (Server segfault with 3.1 platform ISO during volume expansion) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1934
* Revert "glusterd-rebalance: if file is open, don't do rebalance"Vijay Bellur2010-10-191-25/+0
| | | | This reverts commit 6e6b4b4fd002347ca08691f73e10b961f693d754.
* glusterd-rebalance: if file is open, don't do rebalancev3.1.0Amar Tumballi2010-10-121-0/+25
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Copyright changesVijay Bellur2010-10-113-3/+3
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Possible race condition between cleanup and dereferencingshishir gowda2010-10-081-0/+3
| | | | | | | | Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1760 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1760
* Change GNU GPL to GNU AGPLPranith K2010-10-043-9/+9
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1388 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388
* rmdir: introduce extra flags parameter in FOP prototypeAnand V. Avati2010-10-021-3/+18
| | | | | | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Changes to replace flock with gf_flock across GlusterFS.Pavan Sondur2010-10-011-4/+4
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* storage/posix: prevent chmod() from getting called on symlinksAnand Avati2010-09-291-6/+25
| | | | | | | | | | | | symlinks, if at all their mode can be changed (on non-linux platforms) can only be done via lchmod(). Attempting chmod on a symlink can be disastrous. Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 881 (GlusterFS daemon hangs on replication of symlink (3.0.4)) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=881
* Changing readdir calls to readdirp calls in DHTshishir gowda2010-09-281-20/+11
| | | | | | | | | | | | Changing readdir calls to readdirp calls to handle layout issues seen in dht. Also, changing posix readdir call to do stat after dir read for readdirp. Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1690 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1690
* posix: remove variables used for maintaining generation numbersAmar Tumballi2010-09-142-50/+1
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* posix: fix an issue with existing data in case of readdirAmar Tumballi2010-09-141-4/+7
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1597 (readdirp fails if there is old data in the subvolumes) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1597
* posix: Copy gfid from stat to dirent for readdirpShehjar Tikoo2010-09-141-0/+1
| | | | | | | | Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* posix: remove gen related xattr usageAmar Tumballi2010-09-131-207/+69
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: handling of gfids in storage/posixAnand Avati2010-09-041-0/+72
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: changes in symlink() prototype to have params dictionary with uuid in itAnand Avati2010-09-041-2/+3
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: changes in mkdir() prototype to have params dictionary with uuid in itAnand Avati2010-09-041-2/+2
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: changes in mknod() prototype to have params dictionary with uuid in itAnand Avati2010-09-041-2/+3
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* gfid: change in create() prototype to have params dictionary with uuid in itAnand Avati2010-09-041-1/+1
| | | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* changes to client to make use of the rdma functionality.Raghavendra G2010-08-301-1/+1
| | | | | | | | | | | - preallocate buffers in client and pass them to transport layer whenever a large response is expected. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 513 (Introduce 0 copy rdma) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=513
* storage/posix: calculate the correct size of each dirent in readdir/readdirp.Raghavendra G2010-08-252-5/+8
| | | | | | | | | | | | - In addition to posix, protocol/server also adds a check to make sure that iobuf allocated to hold readdir/readdirp response can hold all the dentries, rpc and proc (readdir/readdirp) header. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1430 (encoding of readdirp response fails occasionally) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1430
* xlators/storage: posix.c - remove dead assignments.Sachidananda2010-08-191-40/+18
| | | | | | | | Signed-off-by: Sachidananda Urs <sac@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1089 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1089
* fixes for spurious entry self-heal in afrPranith Kumar K2010-07-281-0/+8
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 974 (Spurious self-heal?) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=974
* some check added to the variables after GF_CALLOCAmar Tumballi2010-07-281-0/+2
| | | | | | | | | | | handles some NULL dereference problems (reported by clang when ran with code where '#define GF_CALLOC NULL'). Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 966 (NULL check for avoiding NULL dereferencing of pointers..) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=966
* proper way to do defrag of a mountpointAmar Tumballi2010-07-142-23/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usage: "glusterfs-defrag <MOUNTPOINT>" there are new features added to distribute with this patch: * bash# getfattr -n trusted.distribute.linkinfo <file> Gives output in the format "<hostname>:<directory>", if there is a linkfile present, where hostname is server, directory is backend directory where the actual linkfile is present. * bash# getfattr -n trusted.glusterfs.pathinfo <path> Gives layout information if directory, and info about actual location of file in backend servers, in the form of 'hostname:directory'. (TODO: should extend it to all xlators) * bash# getfattr -n trusted.distribute.fix.layout <path> scales out the directory layout in distribute, so when new servers are added, layouts are fixed to include them. * removed 'scale-n-defrag.sh' as its no more required. * changed 'defrag.sh' to have a feature to specify target bricks, so defrag happens to only those nodes. moved the file to 'glusterfs-defrag', which now gets installed to '${prefix}/bin' * storage/posix: takes new option 'hostname' so it can resolve to same hostname given during 'gluster volume create'. with 'trusted.glusterfs.pathinfo' posix returns the value in 'hostname:real_path' format. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1073 ('gluster defrag <VOLNAME>' fails in mainline) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1073
* removed 'fop->checksum' from codebase as its not required anymoreAmar Tumballi2010-07-061-74/+0
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 734 (keep only the working/usable code in build tree to focus more on development) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=734
* NULL dereference fixes in code base after running with 'clang'Amar Tumballi2010-07-021-8/+10
| | | | | | | | | | | | * 212 logical (NULL deref/divide by zero) errors reduced to 28 (27 of them in contrib/ and lex part of codebase, 1 is invalid) * 11 API errors reduced to 0 Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 966 (NULL check for avoiding NULL dereferencing of pointers..) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=966
* mem-types: include *-mem-types.h in noinst_HEADERS variables in all Makefile.amAnand Avati2010-06-081-1/+1
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 329 (Replacing memory allocation functions with mem-type functions) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329
* dynamic volume changes for graph replacementAnand Avati2010-06-071-2/+3
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* OS X: adjustments, minor fixes to eliminate warningsCsaba Henk2010-05-211-2/+2
| | | | | | | | Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 361 (GlusterFS 3.0 should work on Mac OS/X) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=361
* added features/mac-compatCsaba Henk2010-05-131-2/+5
| | | | | | | | Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 800 (Problem on OSX with NFS and CIFS exports) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=800
* posix: Support thread-safe vectored writes/readsShehjar Tikoo2010-05-051-84/+90
| | | | | | | | | | | | | | | | | | | | | | | | ..by maintaining internal offsets and using pwrite/pread instead of writev/read. The recent io-threads change is causing concurrent writes to a file from different io-threads. This results in a race between two threads both of which are trying to call lseek-writev. The lseek-writev sequence should be a critical section. This is where pwrite syscall helps. pwrite also requires an offset to be given so for supporting pwrites for multiple iovecs we maintain an offset within posix for the duration of the write fop and pass this internal offset to pwrite. The same logic also applies to read, only difference is that we do not need to read multiple iovecs but only provide an atomic lseek-read sequence. Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 883 (Data corruption due to thread unsafe reads and writes) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=883
* frame's 'op', 'type' restructuredAmar Tumballi2010-05-031-3/+0
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875
* Set op_ret to -1 when open fails in posix_createRaghavendra Bhat2010-04-271-0/+1
| | | | | | | | Signed-off-by: Raghavendra Bhat <raghavendrabhat@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 825 (when create() races both return success) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=825
* Memory accounting changesVijay Bellur2010-04-233-55/+123
| | | | | | | | | | | Memory accounting Changes. Thanks to Vinayak Hegde and Csaba Henk for their contributions. Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 329 (Replacing memory allocation functions with mem-type functions) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329
* iatt: change S_IF macros with IA_IF macros in missing placesAnand Avati2010-04-081-2/+2
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 730 (unknown filetypes and inode conflicts in afr) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=730
* initialization fixesCsaba Henk2010-04-081-1/+1
| | | | | | | | Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 361 (GlusterFS 3.0 should work on Mac OS/X) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=361
* fop namespace cleanup.Amar Tumballi2010-03-312-149/+9
| | | | | | | | | | | | removed 'lock_notify', 'lock_fnotify', 'setdents', 'getdents' from 'fop' list, and removed 'stats' from mop list, as they are no more used in the codebase, and had made code bulky/buggy. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 734 (keep only the working/usable code in build tree to focus more on development) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=734
* fix utimesRaghavendra Bhat2010-03-251-2/+5
| | | | | | | | | | Change utimes to lutimes to prevent errors from symbolic links for linux. For non-linux systems keep utimes. Signed-off-by: Raghavendra Bhat <raghavendrabhat@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 34 (No such file or directory on du) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=34