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* glusterd: op-version check for brickops.Ravishankar N2014-03-243-4/+51
| | | | | | | | | | | | | | | | | | | | | | cluster op-version must be atleast 4 for add/remove brick to proceed. This change is required for the new afr-changelog xattr changes that will be done for glusterFS 3.6 (http://review.gluster.org/#/c/7155/). In add-brick, the check is done only when replica count is increased because only that will affect the AFR xattrs. In remove-brick, the check is unconditional failing which there will be inconsistencies in the client xlator names amongst the volfiles of different peers. Change-Id: If981da2f33899aed585ab70bb11c09a093c9d8e6 BUG: 1066778 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7122 Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: persistent client xlator/ afr changelog namesRavishankar N2014-03-249-3/+92
| | | | | | | | | | | | | | | | | | | | | | | | | -Add a unique brick-id field to glusterd_brickinfo_t -Persist the id to the brickinfo file -Use the brick-id as the client xlator name during vol create, add-brick and replace-brick operations. -For older volumes,generate the id in-memory during glusterd restore but defer writing it to the brickinfo file until the next volume set operation. -send and receive the brick-ids during peer probe. Feature page: www.gluster.org/community/documentation/index.php/Features/persistent-AFR-changelog-xattributes Related patch: http://review.gluster.org/#/c/7122 Change-Id: Ib7f1570004e33f4144476410eec2b84df4e41448 BUG: 1066778 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7155 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Glusterd/Remove-brick: Reconfigure the nfs server volfile upon remove-brick ↵Susant Palai2014-03-221-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | start Problem : For remove-brick start operation all client volfiles are reconfigured except nfs server volfile. Hence, even after layout is fixed by the rebalance process, the nfs clients dont see the change and go on creating directories and files in the decommissioned brick which leads to data loss after remove-brick commit. Solution : Reconfigure the nfs server volfile for remove-brick start credit: kaushal@redhat.com spalai@redhat.com Change-Id: Ib8cd8b45a9e1f888d5e00dff65cdf77c1613a2af BUG: 1070734 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: http://review.gluster.org/7162 Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep/glusterd: Fix geo-rep status on introduction of volume lockKotresh H R2014-03-211-17/+14
| | | | | | | | | | | | | | | | | | | | Getting op context in 'glusterd_op_gsync_set' is no longer valid as it is expected that 'rsp_dict' sent from caller is filled. It was fine till now as no one was setting the op context. The introduction of volume locks sets it, consequently breaking geo-rep status command. Hence the code that gets dict from op context if present is removed. Also corrected some indentation issues in 'glusterd_op_gsync_set' Signed-off-by: Kotresh H R <khiremat@redhat.com> Change-Id: Ieacd6e6c9be3c92159f849caca2acf5aabca1e32 BUG: 1077697 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/7289 Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: send/receive volinfo->caps during peer probe.Ravishankar N2014-03-081-0/+12
| | | | | | | | | | | | | | | Problem: volinfo->caps was not sent over to newly probed peers, resulting in a 'Peer Rejected' state due to volinfo checksum mismatch. Fix: send/receive volinfo capability when peer probing. Change-Id: I2508d3fc7a6e4aeac9c22dd7fb2d3b362f4c21ff BUG: 1072720 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7186 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Fixed typo in console message during volume createSatheesaran2014-03-081-1/+1
| | | | | | | | | | | | | | | | While creating a volume, if the brick is created on the root partition, then the error statement is thrown. This error statements was containing two "is" in it. Removed one of the "is" Change-Id: I0d83f0feccda34989f7e2b97041d1f15ec9e2f00 BUG: 1065551 Signed-off-by: Satheesaran <satheesaran@gmail.com> Reviewed-on: http://review.gluster.org/7198 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* rpc: transport may be destroyed while rpc isn'tKrishnan Parthasarathi2014-03-051-2/+2
| | | | | | | | | | | | | | | | rpc_clnt object is destroyed after the corresponding transport object is destroyed. But rpc_clnt_reconnect, a timer driven function, refers to the transport object beyond its 'life'. Instead, using the embedded connection object prevents use after free problem wrt transport object. Also, access transport object under conn->lock. Change-Id: Iae28e8a657d02689963c510114ad7cb7e6764e62 BUG: 962619 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/6751 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* feature/compress: Validate option and enable docPrashanth Pai2014-02-262-17/+13
| | | | | | | | | | | | | | | | | * Validate network.compression option * Enable descriptions of xlator configurable options * Improve indentation in code * Make network.compression.mode not configurable by user. This is similar to "iam-self-heal-daemon" option in AFR xlator. Fixes BUGs: 1065658, 1065640, 1065655 Change-Id: I99d82b574ee0e5c8c2baf5f5d52dbf8d015d330a BUG: 1065640 Signed-off-by: Prashanth Pai <ppai@redhat.com> Reviewed-on: http://review.gluster.org/7024 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Check for ctx before dereferencing it.Raghavendra Talur2014-02-201-6/+8
| | | | | | | | | | | Fix for coverity CID: 1175010 & 1175011 Change-Id: Ib894fadf94c36704166ac0e2a3b6febf9b3fe446 BUG: 789278 Signed-off-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-on: http://review.gluster.org/7025 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Free dup_value when error path is taken.Ira Cooper2014-02-141-4/+8
| | | | | | | | | | | | | | | | | When the error path is taken here, the data that was allocated for dup_value is never freed. This patch frees it. Thanks to Kaleb Keithley <kkeithle@redhat.com> for his suggestions on how to fix this. Change-Id: Iad88b9ab035602d15961b46c4954d54d54e0d65e CID: 1124705 BUG: 789278 Signed-off-by: Ira Cooper <ira@samba.org> Reviewed-on: http://review.gluster.org/6780 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd/Vol-Locks : Moving globals into glusterd priv and code refactoringAvra Sengupta2014-02-1410-102/+295
| | | | | | | | | | | | | | | | | | | | | | Moved globals(vol_lock and txn_opinfo dicts and global_txn_id) into glusterd priv Moved glusterd_op_send_cli_response() out of gd_unlock_op_phase as gd_unlock_op_phase and glusterd_clear_txn_opinfo should only be called if the txn id has been successfully generated. The cli resp should be sent irrespective of that. Changed log levels from ERROR to WARNING for some volume lock logs where the logs are expected and is not an error Added logs for better transparency of transaction ids. Change-Id: Ifac9b23aa9f1648c9ae252cfd3ac50bb2ed46728 BUG: 1011470 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/6976 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* add build-gfid option to enable pgfid tracking ...Krishnan Parthasarathi2014-02-142-3/+18
| | | | | | | | | | | .. for inode to pathname mapping Change-Id: I0486d85b02e86d739fc1d8ea16d118fb666abf60 BUG: 1064863 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/6989 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Fix possible leaks on failure code pathSantosh Kumar Pradhan2014-02-121-0/+8
| | | | | | | | | | | | | | | Fix the memory leaks in socket and glusterd in failure code paths reported by Coverity. CIDs: 1124777, 1124781, 124782 Change-Id: I63472c6b5900f308f19e64fc93bf7ed2f7b06ade BUG: 789278 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/6954 Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* geo-rep: Fix gsyncd restart issue.Kotresh H R2014-02-121-7/+111
| | | | | | | | | | | | | | | | | | | | | | | New function 'glusterd_gsync_op_already_set' is written which compares the geo-rep configuration value in gsync.conf with the one sent from cli. The generic function is written to compare op_value for any op_name sent from cli as this issue can happen with any configuration setting other than use-tarssh also. This routine is used to avoid restart of gsyncd if the configuration value is set to same as in gsyncd.conf. Also added error checking when glusterd_gsync_configure fails. Earlier, eventhough 'glusterd_gsync_configure' fails, error was not getting catched and success message was shown. Change-Id: If4dcd0ffc09e6e67c79ba86238f03eff1b7c7645 BUG: 1060797 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/6897 Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* protocol/server: do not do root-squashing for trusted clientsRaghavendra Bhat2014-02-102-1/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * As of now clients mounting within the storage pool using that machine's ip/hostname are trusted clients (i.e clients local to the glusterd). * Be careful when the request itself comes in as nfsnobody (ex: posix tests). So move the squashing part to protocol/server when it creates a new frame for the request, instead of auth part of rpc layer. * For nfs servers do root-squashing without checking if it is trusted client, as all the nfs servers would be running within the storage pool, hence will be trusted clients for the bricks. * Provide one more option for mounting which actually says root-squash should/should not happen. This value is given priority only for the trusted clients. For non trusted clients, the volume option takes the priority. But for trusted clients if root-squash should not happen, then they have to be mounted with root-squash=no option. (This is done because by default blocking root-squashing for the trusted clients will cause problems for smb and UFO clients for which the requests have to be squashed if the option is enabled). * For geo-replication and defrag clients do not do root-squashing. * Introduce a new option in open-behind for doing read after successful open. Change-Id: I8a8359840313dffc34824f3ea80a9c48375067f0 BUG: 954057 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4863 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Volume locks and transaction specific opinfosAvra Sengupta2014-02-1018-249/+2047
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch we are replacing the existing cluster-wide lock taken on glusterds across the cluster, with volume locks which are also taken on glusterds across the cluster, but are volume specific. So with the volume locks we are able to perform more than one gluster operation at the same time, as long as the operations are being performed on different volumes. We maintain a global list of volume-locks (using a dict for a list) where the key is the volume name, and which saves the uuid of the originator glusterd. These locks are held and released per volume transaction. In order to acheive multiple gluster operations occuring at the same time, we also separate opinfos in the op-state-machine, as a part of this patch. To do so, we generate a unique transaction-id (uuid) per gluster transaction. An opinfo is then associated with this transaction id, which is used throughout the transaction. We maintain a run-time global list(using a dict) of transaction-ids, and their respective opinfos to achieve this. Upstream Feature Page: http://www.gluster.org/community/documentation/index.php/Features/glusterd-volume-locks Change-Id: Iaad505a854bac8de8f83beec0357eb6cde3f7ea8 BUG: 1011470 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5994 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: add volinfo to the list data structure in an orderVijaykumar M2014-02-084-3/+19
| | | | | | | | | | | | | | | | Currently volinfo is added at the end of the list while creating a volume. On gluster restart, readdir will not provide the ordered list and the data is populated in the same order as readdir. Solution is to insert the volinfo to the list in an order Change-Id: I1716ac6abbd7dd301a7125425fc413c6833f7a48 BUG: 1039912 Signed-off-by: Vijaykumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/6472 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd: Fix a memory leak.Raghavendra Talur2014-02-081-0/+2
| | | | | | | | | | | | errmsg may have malloc'ed memory, free it before leaving function. Change-Id: I4ab3b9db7a48a5e256eb8a08b8ab49818ce6ca1b BUG: 789278 Signed-off-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-on: http://review.gluster.org/6902 Reviewed-by: Poornima G <pgurusid@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Fix the NULL dereference errors reported by coverity.Poornima2014-02-072-2/+6
| | | | | | | | | | Change-Id: I51c120dfe2db44a2b74f35e5cafb4f364ed6e66e BUG: 789278 Signed-off-by: Poornima <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/6901 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mgmt/glusterd: Fix double free.Poornima2014-02-051-3/+2
| | | | | | | | | Change-Id: I7a8b7772849715b019c86c6c768f33c1d9dcb27c BUG: 789278 Signed-off-by: Poornima <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/6881 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Reset opinfo.op ONLY if lock succeededKrutika Dhananjay2014-02-041-2/+4
| | | | | | | | | | Change-Id: I0244a7f61a826b32f4c2dfe51e246f2593a38211 BUG: 1060434 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/6885 Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: Fix race in pid file updateRavishankar N2014-02-031-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch only removes lines of code. For personal gratification, giving a detailed explanation of what the problem was. When glusterd spawns the local brick process, say when a reboot of the node occurs,the glusterd_brick_start() and subsequently the glusterd_volume_start_glusterfs() function gets called twice; from glusterd_spawn_daemons() and glusterd_do_volume_quorum_action() respectively. This causes a race, best described by a pseudo-code of current behaviour. glusterd_volume_start_glusterfs() { if(!brick process running) { step-a) reap pid file( i.e. unlink it) step-b) fork a brick process which creates and locks pid file and binds the process to a socket. } } Time Event ---- ----- T1 Call-1 arrives, completes step-a, starts step-b T2 Call-2 arrives, enters step-a as Call-1's forked child is not yet running. T3 Call-1's forked child is alive, creates pidfile and locks it,binds its address to a socket. T4 Call-2 performs step-a; i.e.unlinks the pid file created by Call-1 !! (files can still be stil be unlinked despite a lockf on it) T5 Call-2 does step-b, and the forked child process creates a *new* pid file with it's pid and locks this file. T6 But Call-2's brick process is not able to bind to socket as it is already in use (courtesy T3) and hence exits (so no locks anymore on the pidfile). Result: - Pid file now contains PID of an extinct brick process. - `gluster volume status` shows this PID value. It also notices that there is no lock held on pid file by the currently running brick process (created by Call-1) and hence shows N/A for the online status. Also, as a result of events at T4, "ls -l /proc/<brick process PID>/fd/pidfile" shows up as deleted. Fix: 1.Do not unlink pid file. i.e. avoid step-a. Now at T5,Call-2's brick process cannot obtain lock on pid file (Call-1's process still holds it) and exits. 2. Unrelated, but remove lock-unlock sequence in glusterfs_pidfile_setup() which does not seem to be doing anything useful. Change-Id: I18d3e577bb56f68d85d3e0d0bfd268e50ed4f038 BUG: 1035586 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/6786 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Fixing a memory leak issue reported by CoverityLalatendu Mohanty2014-02-021-0/+1
| | | | | | | | | | | | | Issue: "errmsg" is allocated memory through GF_CALLOC in function "gf_strdup" Fix: using GF_FREE to free the memory Change-Id: Iee8f8d806ea995591feee8e4ed0a0798ad07a8c4 BUG: 789278 Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6740 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* mgmt/glusterd: Set right op versions for few options.Vijay Bellur2014-01-281-12/+12
| | | | | | | | | | | | compression and changelog translators appear first in 3.5. op-versions of options corresponding to these translators should be 3. Change-Id: Ib514207743e36eba53c3d5cf477c85136cf30b42 BUG: 923540 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/6774 Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* mgmt/glusterd: make sure quota enforcer has established connection with ↵Raghavendra G2014-01-252-18/+20
| | | | | | | | | | | | | | | | | quotad before marking quota as enabled. without this patch there is a window of time when quota is marked as enabled in quota-enforcer, but connection to quotad wouldn't have been established. Any checklimit done during this period can result in a failed fop because of unavailability of quotad. Change-Id: I0d509fabc434dd55ce9ec59157123524197fcc80 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> BUG: 969461 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/6572 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Free op_errstr before it goes out of scope.Ira Cooper2014-01-251-2/+2
| | | | | | | | | | | | Also removed the NULL check on path_list, as it shouldn't be needed. Change-Id: I5b655f7b383f301afa8fc1c1c09b31e2afe47f0f CID: 1138527 BUG: 789278 Signed-off-by: Ira Cooper <ira@samba.org> Reviewed-on: http://review.gluster.org/6784 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Free leaked error message.Ira Cooper2014-01-241-3/+5
| | | | | | | | | | | | | | The way the previous code was written you couldn't tell if the string was from the data area, or allocated, so we switched how the error message is printed, and now free unconditionally. Change-Id: Ia83cf9893acdfb5d537a61cc0bbf4aa7689e483d CID: 1124704 BUG: 789278 Signed-off-by: Ira Cooper <ira@samba.org> Reviewed-on: http://review.gluster.org/6779 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* mgmt: Fix memory leak of brickid from gf_asprintf.Ira Cooper2014-01-241-1/+4
| | | | | | | | | | | | No GF_FREE, so one was put into the return path with proper checking. Change-Id: Idde2803608409dcbf216062f83b7f4493946ba70 CID: 1124718 BUG: 789278 Signed-off-by: Ira Cooper <ira@samba.org> Reviewed-on: http://review.gluster.org/6755 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cli: Add options to the CLI that let the user control the reset ofDawit Alemu2014-01-241-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stats "volume profile info" automatically clears incremental stats. There isn't a command to: - fetch stats without clearing incremental stats and - clear cumulative and incremental stats This change introduces two arguments (i.e. peek and clear). 'clear' will wipe both incremental and cumulative stats. 'peek' fetches stats without wiping incremental stats. 'volume profile info peek' - fetches incremental and cumulative stats without wiping incremental stats 'volume profile info incremental peek' - fetches incremental stats without wiping incremental stats 'volume profile info clear' - clears both incremental and cumultiave stats Change-Id: I91834515ad672eca5f882809941147d7d997c4c9 BUG: 1047416 Signed-off-by: Dawit Alemu <dalemu@redhat.com> Reviewed-on: http://review.gluster.org/6620 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/compress: rename "compress" option to "network.compression"Niels de Vos2014-01-242-15/+20
| | | | | | | | | | | | | | | | | | Prevent mistaking the "compress" options for storage (at rest) compression. The cdc-xlator is implemented to support compressing of network traffic (READ and WRITE FOPs). URL: http://www.gluster.org/community/documentation/index.php/Features/On-Wire_Compression_+_Decompression Change-Id: I9fedf4106dcb226d135ab92e4b533aff284881d7 BUG: 1053670 CC: Venky Shankar <vshankar@redhat.com> CC: Prashanth Pai <ppai@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/6765 Reviewed-by: Prashanth Pai <ppai@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Fix memory leak of hostname.Ira Cooper2014-01-221-1/+3
| | | | | | | | | | | | The if causes a goto that allows the GF_FREE to be missed. BUG: 789278 Change-Id: Ic2c20b7623ea880b8ab2d11ebe510a62633a036d CID: 1124785 Signed-off-by: Ira Cooper <ira@samba.org> Reviewed-on: http://review.gluster.org/6754 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* quota: unmount quota aux mount for volume stopSusant Palai2014-01-201-0/+27
| | | | | | | | | | | | | | Previously df -h used to display "Transport end point not connected" for quota auxiliary mount after volume is stopped. This patch unmounts the auxiliary mount when the volume is stopped in all peer nodes for that volume. Change-Id: I78abb44386cd8242a532f92c13df8bdb57c78e31 BUG: 1049323 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: http://review.gluster.org/6656 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* core: Coverity issue "Use of uninitialized scalar variable"Lalatendu Mohanty2014-01-181-1/+1
| | | | | | | | | | | | | | Issue: 1. In "unlink (export_path)" "export_path" might contain an arbitrary value left from earlier computations. 2. In "(msg[0] != '\0')" msg might contain an arbitrary value Change-Id: Icca8f557fd6b5e046dff1d5a84a72061975868d0 BUG: 789278 Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6701 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/quota: Metadata cleanupVarun Shastry2014-01-161-5/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quota and marker uses 'trusted.glusterfs.quota*' and 'trusted.pgfid*' xattrs to store its configurations and accounting information and also to build the parent inode chain in case of absense of path. Problem: After disabling and then enabling quota back, the xattrs may contain stale data leading to impaired accounting and thus improper enforcement. Solution: Clean up all the quota related xattrs after quota disable. Marker xlator implements a virtual xattr to cleanup quota and pgfid xattrs. In this approach glusterd mounts an auxiliary mount and sends the below command to all the files by crawling the mountpoint. #setfattr -n "glusterfs.quota-xattr-cleanup" -v 1 <path/to/file> Credit: Krishnan Parthasarathi <kparthas@redhat.com> Varun Shastry <vshastry@redhat.com> Change-Id: I9380eca58a285dc27dd572de1767aac8f2cd8049 BUG: 969461 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/6369 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Fixing null pointer dereference of "op_value"Lalatendu Mohanty2014-01-151-1/+1
| | | | | | | | | Change-Id: Id39743eaa5a52cc7fd4e2a1378a23384f5ef1fed BUG: 789278 Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6700 Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Avra Sengupta <asengupt@redhat.com>
* glusterd/geo-rep : Allow volume to stop if geo-rep is not active.Kotresh H R2014-01-143-1/+176
| | | | | | | | | | | | | | In staging phase of volume stop, code is added to read the state_file for each slave of the master to which the volume belongs. If any of the geo-rep session is active with at least one slave, volume is not allowed to stop else it is allowed. Change-Id: I4a01a357fc86b872e9635b3d19998cdbd9545114 BUG: 1049727 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/6663 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mgmt/glusterd: Improve the description in volume set help outputVarun Shastry2014-01-121-2/+7
| | | | | | | | | Change-Id: I785648970f53033a69922c23110b5eea9e47feb3 BUG: 1046030 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/6573 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Comments for missing break in switchcase of glusterd_op_stage_quotaLalatendu Mohanty2014-01-101-0/+3
| | | | | | | | Change-Id: I3ac5b73b9703a390f1de9cd6a999dfd8ec27d379 Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6645 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Relocate rebalance sockfileKaushal M2014-01-103-8/+46
| | | | | | | | | | | | | | | | | | | | | | | The defrag sockfile was moved from priv->workdir to DEFAULT_VAR_RUN_DIRECTORY. The format for the new path of the defrag sockfile is 'DEFAULT_VAR_RUN_DIRECTORY/gluster-rebalance-<vol-id>.sock'. This was needed because the earlier location didn't have a fixed length and could exceed UNIX_PATH_MAX characters. This could lead to the rebalance process failing to start as the socket file could not be created. Also, for keeping backward compatiblity, glusterd_rebalance_rpc_create will try both the new and old sockfile locations when attempting reconnection. Change-Id: I6740ea665de84ebce1ef7199c412f426de54e3d0 BUG: 1049726 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/6616 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Fixing an incorrect memcpy operation.Lalatendu Mohanty2014-01-091-1/+1
| | | | | | | | | | | | Currently we are copying a higher size variable to lower size variable i.e. copying a NAME_MAX to PATH_MAX sized variable in "memcpy (sts_val->worker_status, monitor_status, strlen(monitor_status));" Change-Id: I81dca8e81a4aea5545d5982aed20e05a5e08641c Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6667 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Glusterd : glusterd process generates core due to NULL store handleAtin Mukherjee2014-01-031-5/+7
| | | | | | | | | | | | | | | | | | | | | | | Problem : glusterd crashed as backtrace revealed that store handle was set to NULL. Solution : In glusterd_store_global_info() function out block the handle is dereferenced with out any NULL check which caused this segmentation fault. A NULL check is introduced to avoid this. While testing this fix, another issue was noticed where GF_ASSERT macro again does not gurantee the NULL dereference check and hence this macro call has been replaced by GF_VALIDATE_OR_GOTO macro call in places where there is a danger of macro getting crashed due to NULL dereference check. Change-Id: Ic301aa45ce4bbdc2da751d2386439df7bb24c016 BUG: 1040844 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/6619 Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: update volinfo->subvol_count in newly added peersRavishankar N2014-01-031-1/+2
| | | | | | | | | | | | Update the subvol_count when a peer imports information about the friend volumes. Change-Id: Id3884bd5727ff22be7ed87f43a1ec1b5fe34813c BUG: 1047955 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/6629 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* rpc/server: add anonuid and anongid options for root-squashNiels de Vos2013-12-301-0/+10
| | | | | | | | | | | | | | | | | | | Introduce new options to modify the behaviour of server.root-squash. With server.anonuid and server.anongid the uid/gid can be specified and the root user (uid=0 and gid=0) will be mapped to the given uid/gid instead of nfsnobody (uid=65534 and gid=65534). Many thanks to Vikhyat Umrao for writing the majority of the test-case! Change-Id: I6379a3d2ef52b9b9707f2f6f0529657580c8d779 BUG: 1043886 CC: Vikhyat Umrao <vumrao@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/6546 Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Reviewed-by: Vikhyat Umrao <vumrao@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: make volinfo a refcnt'ed object.Krishnan Parthasarathi2013-12-206-6/+55
| | | | | | | | | | | | | Add glusterd_volinfo_remove(..) which removes @volinfo from the list of volumes in the cluster and performs an unref on @volinfo Change-Id: I5f546ca58f61bc334ab1bab4c51c4a21e1f66161 BUG: 1038051 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/6521 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: rebalance to ref volinfo before startingKrishnan Parthasarathi2013-12-202-5/+11
| | | | | | | | | Change-Id: Ib316897dcbd0748bfb3bfcda186b9fe30c07f80f BUG: 1038051 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/6522 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd : enable/disable quota using volume set cmd deprecated.Anuradha Talur2013-12-191-0/+38
| | | | | | | | | | | | | | | | | Using the command 'gluster volume set <volname> quota {on|off}' doesn't really enable/disable quota. So, a message to the user is provided. Message asks the user to use 'gluster volume quota <volname> {enable|disable}' instead. Improvement of the previous method to solve the issue. Change-Id: Ibeda35bb49ec7b541d53e592b48fd132380fce76 BUG: 1024626 Signed-off-by: Anuradha Talur <atalur@redhat.com> Reviewed-on: http://review.gluster.org/6512 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: hold the lock when submitting ACC in replace-brickVijaykumar M2013-12-191-1/+5
| | | | | | | | | | | | | replace-brick handler sets the timer to perform the replace operation and unlocks the big_lock. So we need to lock inside 'glusterd_do_replace_brick' before submitting the ACC Change-Id: I5525c62533bd92d3ac46587e5353e2443ad85851 BUG: 1044337 Signed-off-by: Vijaykumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/6534 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: ignore failure to stop a stopped service.Krishnan Parthasarathi2013-12-191-0/+12
| | | | | | | | | | | | | | | | kill(2) returns -1 with errno set to ESRCH when the pid of the process being killed doesn't exist. Failing glusterd_brick_stop on a stopped brick could result in volume-stop failing, in commit phase. This fix prevents that from happening. Change-Id: I00f46fa06e489a671efbb8e4119f545f8ccea329 BUG: 1038051 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/6525 Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Fix stopping of stale rebalance processesKaushal M2013-12-181-102/+12
| | | | | | | | | | | | | | | | | | | | | | | Trying to stop rebalance process via RPC using the GD_SYNCOP macro, could lead to glusterd crashing. In case of an implicit volume update, which happens when a peer comes back up, the stop function would be called in the epoll thread. This would lead to glusterd crashing as the epoll thread doesn't have synctasks for the GD_SYNCOP macro to make use of. Instead of using the RPC method, we now terminate the rebalance process by kill(). The rebalance process has been designed to be resistant to interruption, so this will not lead to any data corruption. Also, when checking for stale rebalance task, make sure that the old task-id is not null. Change-Id: I54dd93803954ee55316cc58b5877f38d1ebc40b9 BUG: 1044327 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/6531 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* rpc,glusterd: Use rpc_clnt notifyfn to cleanup mydataKaushal M2013-12-164-8/+27
| | | | | | | | | | | | | | | | | | | | | | | rpc: - On a RPC_TRANSPORT_CLEANUP event, rpc_clnt_notify calls the registered notifyfn with a RPC_CLNT_DESTROY event. The notifyfn should properly cleanup the saved mydata on this event. - Break the reconnect chain when an rpc client is disabled. This will prevent new disconnect events which can lead to crashes. glusterd: - Added support for RPC_CLNT_DESTROY in glusterd_brick_rpc_notify - Use a common glusterd_rpc_clnt_unref() function throught glusterd in place of rpc_clnt_unref(). This function correctly gives up the big-lock before performing the unref. Change-Id: I93230441c5089039643fc9f5632477ef1b695348 BUG: 962619 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5512 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>