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* glusterd: Ping timer implmentationKrishnan Parthasarathi2014-04-291-17/+1
| | | | | | | | | | | | | | | | | | | | | | | | This patch refactors the existing client ping timer implementation, and makes use of the common code for implementing both client ping timer and the glusterd ping timer. A new gluster rpc program for ping is introduced. The ping timer is only started for peers that have this new program. The deafult glusterd ping timeout is 30 seconds. It is configurable by setting the option 'ping-timeout' in glusterd.vol . Also, this patch introduces changes in the glusterd-handshake path. The client programs for a peer are now set in the callback of dump_versions, for both the older handshake and the newer op-version handshake. This is the only place in the handshake process where we know what programs a peer supports. Change-Id: I035815ac13449ca47080ecc3253c0a9afbe9016a BUG: 1038261 Signed-off-by: Vijaikumar M <vmallika@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5202 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* protocol/client: Fix the possible resource leaks.Poornima2014-02-151-7/+10
| | | | | | | | | | Change-Id: Ib86dee366f5a6f0971c6472d1fb2c32dbf7f0102 BUG: 789278 Signed-off-by: Poornima <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/6985 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* core: fix errno for non-existent GFIDAnand Avati2013-11-261-1/+2
| | | | | | | | | | | | | | | | | | | When clients refer to a GFID which does not exist, the errno to be returned in ESTALE (and not ENOENT). Even though ENOENT might look "proper" most of the time, as the application eventually expects ENOENT even if a parent directory does not exist, not returning ESTALE results in resolvers (FUSE and GFAPI) to not retry resolution in uncached mode. This can result in spurious ENOENTs during concurrent path modification operations. Change-Id: I7a06ea6d6a191739f2e9c6e333a1969615e05936 BUG: 1032894 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6318 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@gmail.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Fixes for ZF reported by coverityM. Mohan Kumar2013-11-191-1/+3
| | | | | | | | | BUG: 1028673 Change-Id: I7c75738cca22c81c5629d579ef5bea24000e622e Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/6291 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterfs: zerofill supportM. Mohan Kumar2013-11-101-0/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for a new ZEROFILL fop. Zerofill writes zeroes to a file in the specified range. This fop will be useful when a whole file needs to be initialized with zero (could be useful for zero filled VM disk image provisioning or during scrubbing of VM disk images). Client/application can issue this FOP for zeroing out. Gluster server will zero out required range of bytes ie server offloaded zeroing. In the absence of this fop, client/application has to repetitively issue write (zero) fop to the server, which is very inefficient method because of the overheads involved in RPC calls and acknowledgements. WRITESAME is a SCSI T10 command that takes a block of data as input and writes the same data to other blocks and this write is handled completely within the storage and hence is known as offload . Linux ,now has support for SCSI WRITESAME command which is exposed to the user in the form of BLKZEROOUT ioctl. BD Xlator can exploit BLKZEROOUT ioctl to implement this fop. Thus zeroing out operations can be completely offloaded to the storage device , making it highly efficient. The fop takes two arguments offset and size. It zeroes out 'size' number of bytes in an opened file starting from 'offset' position. This patch adds zerofill support to the following areas: - libglusterfs - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi Client applications can exloit this fop by using glfs_zerofill introduced in libgfapi.FUSE support to this fop has not been added as there is no system call for this fop. Changes from previous version 3: * Removed redundant memory failure log messages Changes from previous version 2: * Rebased and fixed build error Changes from previous version 1: * Rebased for latest master TODO : * Add zerofill support to trace xlator * Expose zerofill capability as part of gluster volume info Here is a performance comparison of server offloaded zeofill vs zeroing out using repeated writes. [root@llmvm02 remote]# time ./offloaded aakash-test log 20 real 3m34.155s user 0m0.018s sys 0m0.040s [root@llmvm02 remote]# time ./manually aakash-test log 20 real 4m23.043s user 0m2.197s sys 0m14.457s [root@llmvm02 remote]# time ./offloaded aakash-test log 25; real 4m28.363s user 0m0.021s sys 0m0.025s [root@llmvm02 remote]# time ./manually aakash-test log 25 real 5m34.278s user 0m2.957s sys 0m18.808s The argument log is a file which we want to set for logging purpose and the third argument is size in GB . As we can see there is a performance improvement of around 20% with this fop. Change-Id: I081159f5f7edde0ddb78169fb4c21c776ec91a18 BUG: 1028673 Signed-off-by: Aakash Lal Das <aakash@linux.vnet.ibm.com> Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/5327 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* protocol/rpc: move latest added procedures to the end of the arrayNiels de Vos2013-06-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | While looking at the newly introduced procedures FALLOCATE and DISCARD, it seems that these were added with already existing procedure numbers. This makes the protocol incompatible with existing roll-outs. It is very confusing when new procedures are added somewhere in the middle of the array. This will cause the number of existing procedures to change. It is much preferred to add new procedures at the end of the array. This changes not only corrects the enum that generates the procedure numbers, but also the ordering in the client and server fops-array for clarity. Correcting this greatly simplifies adding support for these new procedures in Wireshark and will prevent confusion to the people reading network traces (with or without Wireshark). Change-Id: Ib9e7978531d016c7230d756b855cb94cb0793b0f BUG: 974976 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/5215 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfs: discard (hole punch) supportBrian Foster2013-06-131-0/+101
| | | | | | | | | | | | | | | | Add support for the DISCARD file operation. Discard punches a hole in a file in the provided range. Block de-allocation is implemented via fallocate() (as requested via fuse and passed on to the brick fs) but a separate fop is created within gluster to emphasize the fact that discard changes file data (the discarded region is replaced with zeroes) and must invalidate caches where appropriate. BUG: 963678 Change-Id: I34633a0bfff2187afeab4292a15f3cc9adf261af Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/5090 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gluster: add fallocate fop supportBrian Foster2013-06-131-0/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* logging: Fix to avoid excessive logging.Venkatesh Somyajulu2013-05-281-2/+2
| | | | | | | | | | | | | | | | | | | | | mem_get function: Log message related to mem_pool calloc is removed as its been calculated in mempool 'stats'. This messgae is consuming nearly half of the total log messages in DEBUG mode. dht_hash_compute function: Changed log level from DEBUG to TRACE. client_fdctx_destroy function: Changed log level from DEBUG to TRACE. Change-Id: Ic948db0419e76df4e95ebd0cabaf66eadbaada6b BUG: 966851 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/5086 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* protocol/client: Print valid loc identifiersPranith Kumar K2013-04-031-35/+27
| | | | | | | | | | Change-Id: I45f91105862a2484b8906a7a63b98ab4aaf80d05 BUG: 924643 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/4683 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* protocol/client: Periodically attempt reopensPranith Kumar K2013-02-031-56/+86
| | | | | | | | | | | | | | | | | | | | | | If the brick is taken down and the hard disk is replaced and the brick is brought back up, the re-opens of the open-fds will fail because the file is not present on the brick. Re-opens are not attempted even if the files are re-created by self-heal until the brick is brought down after the files are re-created and brought back up. This is a problem with a VM-store in a replica-setup. Until the fd is re-opened the writes will never happen on the brick where the hard-disk is replaced. To handle this situation gracefully, client xlator is enhanced to perform finodelk, fxattrop, writev, readv using anonymous fds if the file is yet to be re-opened. If the fop succeeds then client xlator attempts re-open. Change-Id: I1cc6d1bbf8227cd996868ab2ed0a57fb05e00017 BUG: 821056 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/4358 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* protocol/client: Add fdctx back to saved-list after reopenPranith Kumar K2013-02-031-0/+1
| | | | | | | | | Change-Id: I01caa1b51570359e6e3ffe1ffb7279cbdb0b0c64 BUG: 821056 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/4357 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* protocol/client: log ENOENT errors in debug mode.Raghavendra Bhat2012-12-041-2/+3
| | | | | | | | | Change-Id: I9b4ffb4a2f6be7ff5a0521f6582a9bc6f172e26c BUG: 872490 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4153 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* protocols: Suppress getxattr log when errno is ENOENTPranith Kumar K2012-10-281-1/+3
| | | | | | | | | Change-Id: I3f4fe3f382aec5fd142cc409b80bd73aebd8b39b BUG: 861015 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/4097 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* protocol/client: Conditional logging in client3_3_unlink_cbkVenkatesh Somyajulu2012-10-121-1/+5
| | | | | | | | | Change-Id: I4af398362cdb3f99782dcd3728988e4cf1fbb479 BUG: 861925 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/4069 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* remove useless if-before-free (and free-like) functionsJim Meyering2012-07-131-275/+137
| | | | | | | | | | | | 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>
* rpc: variable name changesAmar Tumballi2012-07-121-184/+184
| | | | | | | | | | | | | 's/3_1/3_3/g' in case of glusterfs protocol 's/3_1_/_/g' in case of CLI and mgmt protocol Change-Id: I6e6510d02c05f68f290c52ed284c04576326e12c Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 764890 Reviewed-on: http://review.gluster.com/3632 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* xlators/protocol: better filenameAmar Tumballi2012-07-041-0/+6005
3_1 name was used for very first version of GlusterFS which used RPC for its protocol, even though we changed protocol after 3.1.x, we kept the name of few files as is. Changed the file names to something better. Change-Id: I297f1979e7c7e909e60674eec2e632506bc776f5 BUG: 764890 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.com/3628 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
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