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* glusterd:Reducing file operations when writing options into volfile.Srijan Sivakumar2020-09-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Issue: The options to be written into the volfile are in form of key-value pairs and the current approach taken to write them into a file is to invoke the write syscall for each key-value pair. This implies an increased number of system calls. Code Changes: 1. Addition of a structure, glusterd_volinfo_data_store_t in glusterd-store.h, containing a character buffer, a pointer to gf_store_handle_t, the current length of data in the buffer as well as a flag for checking key while storing in the buffer. This is used for passing the required file descriptor as well having a character buffer for storing multiple options before being written into a file. 2. Modification of function, _storeopts in glusterd-store.c, which now invokes the gf_store_save_items when buffer is to be emptied into the volfile before further write into it. Also, it has replaced the function _storeslaves, _gd_store_rebalance_dict and _store_global_opts. 3. Modification of function, glusterd_store_volinfo_write in glusterd-store.c, wherein a pointer of type glusterd_volinfo_data_store_t is initialized for further operation. Also, the buffer is emptied into the volfile before it is freed. 4. Modification of function, glusterd_store_node_state_write in glusterd-store.c, wherein the a pointer of type glusterd_volinfo_data_store_t is initialized for further operations. Also, the buffer is emptied into the volfile before it is freed. 5. Addition of enum into glusterd-mem-types.h 6. Modification of function, glusterd_store_options in glusterd-store.c, wherein a pointer of type glusterd_volinfo_data_store_t is initialized for further opertaions. Also, the buffer is emptied into the volfile before it is freed. Reasoning behind the approach: 1.Instead of a dynamic allocation of buffer or increasing the buffer size with increased number of options, it, the current approach takes a buffer of fixed size (VOLINFO_BUFFER_SIZE). Before any write into the buffer, the size is checked and if it exceeds the available space, the contents of the buffer are written to the file before copying new contents. Dynamic allocation can lead to increased memory usage as one doesn't know the number of options that could be added in time and may go on to occupy more space than mandated. 2.The function dict_foreach is a generic function used across different modules. It made sense not to change its implementation as it might affect other Functionalities. Hence a structure was added which could just be passed as one of the parameter to this function (as it takes a void*). 3. Reduced number of system calls implies an increase in execution speed. Also, these modified functions come into play whenever the volume is started or modified. 4. The functions _storeslaves, _gd_store_rebalace_dict and _store_global_opts were doing the same set of operations as that of _storeopts except the checking for the key. This has been handled with the help of a flag in the glusterd_volinfo_data_store_t structure. This reduces the duplicate code present. Signed-off-by: Srijan Sivakumar <ssivakum@redhat.com> Change-Id: I22e6e91c78ed51e3a171482054d77bf793b9ab16 Fixes: #718
* mgmt/shd: Implement multiplexing in self heal daemonMohammed Rafi KC2019-04-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Shd daemon is per node, which means they create a graph with all volumes on it. While this is a great for utilizing resources, it is so good in terms of performance and managebility. Because self-heal daemons doesn't have capability to automatically reconfigure their graphs. So each time when any configurations changes happens to the volumes(replicate/disperse), we need to restart shd to bring the changes into the graph. Because of this all on going heal for all other volumes has to be stopped in the middle, and need to restart all over again. Solution: This changes makes shd as a per volume daemon, so that the graph will be generated for each volumes. When we want to start/reconfigure shd for a volume, we first search for an existing shd running on the node, if there is none, we will start a new process. If already a daemon is running for shd, then we will simply detach a graph for a volume and reatach the updated graph for the volume. This won't touch any of the on going operations for any other volumes on the shd daemon. Example of an shd graph when it is per volume graph ----------------------- | debug-iostat | ----------------------- / | \ / | \ --------- --------- ---------- | AFR-1 | | AFR-2 | | AFR-3 | -------- --------- ---------- A running shd daemon with 3 volumes will be like--> graph ----------------------- | debug-iostat | ----------------------- / | \ / | \ ------------ ------------ ------------ | volume-1 | | volume-2 | | volume-3 | ------------ ------------ ------------ Change-Id: Idcb2698be3eeb95beaac47125565c93370afbd99 fixes: bz#1659708 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* libglusterfs: Move devel headers under glusterfs directoryShyamsundarR2018-12-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | libglusterfs devel package headers are referenced in code using include semantics for a program, this while it works can be better especially when dealing with out of tree xlator builds or in general out of tree devel package usage. Towards this, the following changes are done, - moved all devel headers under a glusterfs directory - Included these headers using system header notation <> in all code outside of libglusterfs - Included these headers using own program notation "" within libglusterfs This change although big, is just moving around the headers and making it correct when including these headers from other sources. This helps us correctly include libglusterfs includes without namespace conflicts. Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b Updates: bz#1193929 Signed-off-by: ShyamsundarR <srangana@redhat.com>
* Multiple xlator .h files: remove unused private gf_* memory types.Yaniv Kaul2018-11-301-59/+38
| | | | | | | | | | | | | It seems there were quite a few unused enums (that in turn cause unndeeded memory allocation) in some xlators. I've removed them, hopefully not causing any damage. Compile-tested only! updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Change-Id: I8252bd763dc1506e2d922496d896cd2fc0886ea7
* Land clang-format changesGluster Ant2018-09-121-60/+59
| | | | Change-Id: I6f5d8140a06f3c1b2d196849299f8d483028d33b
* glusterd: Introduce option to limit no. of muxed bricks per processSamikshan Bairagya2017-07-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit introduces a new global option that can be set to limit the number of multiplexed bricks in one process. Usage: `# gluster volume set all cluster.max-bricks-per-process <value>` If this option is not set then multiplexing will happen for now with no limitations set; i.e. a brick process will have as many bricks multiplexed to it as possible. In other words the current multiplexing behaviour won't change if this option isn't set to any value. This commit also introduces a brick process instance that contains information about brick processes, like the number of bricks handled by the process (which is 1 in non-multiplexing cases), list of bricks, and port number which also serves as an unique identifier for each brick process instance. The brick process list is maintained in 'glusterd_conf_t'. Updates: #151 Change-Id: Ib987d14ab0a4f6034dac01b73a4b2839f7b0b695 Signed-off-by: Samikshan Bairagya <samikshan@gmail.com> Reviewed-on: https://review.gluster.org/17469 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* glusterd: Maintain per transaction xaction_peers list in syncop & mgmt_v3Atin Mukherjee2014-12-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In current implementation xaction_peers list is maintained in a global variable (glustrd_priv_t) for syncop/mgmt_v3. This means consistency and atomicity of peerinfo list across transactions is not guranteed when multiple syncop/mgmt_v3 transaction are going through. We had got into a problem in mgmt_v3-locks.t which was failing spuriously, the reason for that was two volume set operations (in two different volume) was going through simultaneouly and both of these transaction were manipulating the same xaction_peers structure which lead to a corrupted list. Because of which in some cases unlock request to peer was never triggered and we end up with having stale locks. Solution is to maintain a per transaction local xaction_peers list for every syncop. Please note I've identified this problem in op-sm area as well and a separate patch will be attempted to fix it. Finally thanks to Krishnan Parthasarathi and Kaushal M for your constant help to get to the root cause. Change-Id: Ib1eaac9e5c8fc319f4e7f8d2ad965bc1357a7c63 BUG: 1173414 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/9269 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd/snapshot: Execute lvm snapshots in parallelVijaikumar M2014-05-081-1/+2
| | | | | | | | | | | | | | | | | Back-end LVM Snapshot is executed parallely as synop task This helps is gaining performance when there are more bricks in a node. This patch also removes unwanted logs printed in snapshot cleanup Change-Id: I3174cb4547ebb670eca37a98eb9d75ecb0672a90 BUG: 1061685 Signed-off-by: Vijaikumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/7461 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* gluster: GlusterFS Volume Snapshot FeatureAvra Sengupta2014-04-111-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | This is the initial patch for the Snapshot feature. Current patch includes following features: * Snapshot create * Snapshot delete * Snapshot restore * Snapshot list * Snapshot info * Snapshot status * Snapshot config Change-Id: I2f46920c0d61c515f6a60e0f8b46fff886d9f6a9 BUG: 1061685 Signed-off-by: shishir gowda <sgowda@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Signed-off-by: Vijaikumar M <vmallika@redhat.com> Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Signed-off-by: Rajesh Joseph <rjoseph@redhat.com> Signed-off-by: Joseph Fernandes <josferna@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/7128 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: remove-brick:Allow simultaneous removal of multiple subvolumes.Ravishankar N2013-08-131-1/+2
| | | | | | | | | | | | | | | | | Currently, remove-brick supports removal of only one distributed stripe/ replica pair at a time. Fix it to support removal of multiple pairs. This is consistent with add-brick behaviour which supports adding multiple stripe/replica pairs simultaneously. Removal is successful irrespective of the order of the bricks given at the CLI, as long as the bricks are from the same subvolume(s). Change-Id: I7c11c1235ce07b124155978b9d48d0ea65396103 BUG: 974007 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/5210 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd: Increasing throughput of synctask based mgmt ops.Krishnan Parthasarathi2013-02-261-1/+2
| | | | | | | | | | Change-Id: Ibd963f78707b157fc4c9729aa87206cfd5ecfe81 BUG: 913662 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/4570 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* All: License message changeVarun Shastry2012-09-131-7/+6
| | | | | | | | | | | | License message changed for server-side, dual license GPLV2 and LGPLv3+. Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09 BUG: 852318 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/3940 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* All: License message changeVarun Shastry2012-08-281-15/+6
| | | | | | | | | | | | | | | | | | The license message is changed to Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser General Public License, version 3 or any later version (LGPLv3 or later), or the GNU General Public License, version 2 (GPLv2), in all cases as published by the Free Software Foundation. Change-Id: I07d2b63ed5fbbbd1884f1e74f2dd56013d15b0f4 BUG: 852318 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/3858 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Run post hooks on a different threadKrishnan Parthasarathi2012-05-291-1/+3
| | | | | | | | | | | | | | | | | | | | This change ensures post hooks can 'wait' if need be and _not_ prevent glusterd from being able to run other operations meanwhile. Also ensures that post hook scripts are 'serialized' between transactions. ie, post hook scripts of txn1 are completed before post hook scripts of txn2 are started, where txn1 happens before txn2. Change-Id: Iaeb676737d8c67e7151127c8d1fd8c2891e10aee BUG: 806996 Signed-off-by: Krishnan Parthasarathi <kp@gluster.com> Reviewed-on: http://review.gluster.com/3450 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* glusterd/mountbroker: enhance mountbroker-geo-replication.* option to take ↵Csaba Henk2012-03-141-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | multiple volumes Comma can be used in the value of a "mountbroker-geo-replication.*" option with semantics as of these examples: option mountbroker-geo-replication.foolabel vol1,vol2,vol3:geouser and option mountbroker-geo-replication.geouser vol1,vol2,vol3 will allow geouser to mount any of the volumes vol{1,2,3} with params of a geo-rep aux mount under label foolabel, resp. geouser Also fix memleak in parsing of this option. Change-Id: I5311388812f503a078a52a14f2679f5ddb33b248 BUG: 765214 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/2818 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* cli, glusterd : Added support for clear-locks command.Krishnan Parthasarathi2012-02-171-1/+2
| | | | | | | | | Change-Id: I8e7cd51d6e3dd968cced1ec4115b6811f2ab5c1b BUG: 789858 Signed-off-by: Krishnan Parthasarathi <kp@gluster.com> Reviewed-on: http://review.gluster.com/2552 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* glusterd: Implemented cmd to trigger self-heal on a replicate volume.v3.3.0qa10Krishnan Parthasarathi2011-09-221-1/+2
| | | | | | | | | | | | | This cmd is used in the context of proactive self-heal for replicated volumes. User invokes the following cmd when (s)he suspects that self-heal needs to be done on a particular volume, gluster volume heal <VOLNAME>. Change-Id: I3954353b53488c28b70406e261808239b44997f3 BUG: 3602 Reviewed-on: http://review.gluster.com/454 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* glusterd / cli: mount-broker serviceCsaba Henk2011-09-121-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mountbroker is configured in glusterd volfile through a DSL which is restriced enough to be able to appear in the role of the value of a volfile knob. Basically the DSL describes set-theorical requirements against the option set which is sent by the cli (in the hope of getting a mount with these options). If the requirements meet and the volume id and the uid who is to "own" the mount can be unambigously deduced from the given request, glusterd does the mount with the given parameters. The use case of geo-replication is sugared by means of volume options which then generate a complete mount-broker option set. Demo: - add the following option to your glusterd volfile: option mountbroker-root /tmp/mbr option mountbroker.fool EQL(volfile-id=pop*|user-map-root=*|volfile-server=localhost)&MEET(user-map-root=john|user-map-root=jane) - before starting glusterd, create /tmp/mbr owned by root with mode 0755 - with cli, do $ gluster system:: mount fool volfile-id=pop33 user-map-root=jane volfile-server=localhost - on succesful completion (volume pop33 exists and is started, jane is a valid username), the mount path will be echoed to you - you can get rid of the mount by $ gluster system:: umount <mount-path> Change-Id: I629cf64add0a45500d05becc3316f67cdb5b42ff BUG: 3482 Reviewed-on: http://review.gluster.com/128 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* glusterd / geo-rep: in status, display slave URLs in simpler normalized formCsaba Henk2011-08-231-1/+3
| | | | | | | | | | | | | | | | Ie. instead of writing out the fully expanded canonical URL like ssh://root@192.168.3.4:gluster://127.0.0.1:bar we just display ssh://root@starship::bar Change-Id: I2bd70650cbc9973d925f652bccb163d391e406c9 BUG: 2536 Reviewed-on: http://review.gluster.com/79 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushik BV <kaushikbv@gluster.com>
* Change Copyright current yearPranith Kumar K2011-08-101-1/+1
| | | | | | | | Change-Id: I2d10f2be44f518f496427f257988f1858e888084 BUG: 3348 Reviewed-on: http://review.gluster.com/200 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* LICENSE: s/GNU Affero General Public/GNU General Public/Pranith Kumar K2011-08-061-3/+3
| | | | | | | | Change-Id: I3914467611e573cccee0d22df93920cf1b2eb79f BUG: 3348 Reviewed-on: http://review.gluster.com/182 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* mgmt/glusterd: gluster profile implementationPranith K2011-03-101-4/+8
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1965 (need a cmd to get io-stat details) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1965
* cli,mgmt/glusterd: fsm log implementationPranith K2010-10-291-1/+2
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1966 (Unnecessarily verbose logs at the default log level) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1966
* Copyright changesVijay Bellur2010-10-111-1/+1
| | | | | | | | 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
* mgmt/glusterd: delay probe till connection happensPranith K2010-09-271-1/+2
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1607 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1607
* mgmt/glusterd: memory leak fixesPranith Kumar K2010-08-311-35/+35
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1186 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1186
* 'gluster volume log' feature addedAmar Tumballi2010-08-311-0/+3
| | | | | | | | | * 'gluster volume log filename <VOLNAME> [BRICK] <path>' * 'gluster volume log locate <VOLNAME> [BRICK]' * 'gluster volume log rotate <VOLUME> [BRICK]' Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com>
* changed GNU General Public License to GNU Affero General Public LicensePranith Kumar K2010-08-171-3/+3
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1388 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388
* 'gluster volume rebalance' related fixesAmar Tumballi2010-08-111-0/+1
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1307 (gluster volume defrag <VOLNAME> status) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1307
* v2[PATCH BUG:1286] glusterd: Regain volume state upon re-startVijay Bellur2010-08-061-0/+2
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1286 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1286
* DVM: bug fixes in cli and glusterd for probe, start volumev3.1.0qa2Vijay Bellur2010-07-251-0/+1
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1187 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1187
* Changes for volume commandsVijay Bellur2010-07-191-0/+5
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1161 (gluster volume start command segfaults glusterd) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1161
* Fixes a crash seen in create volumeVijay Bellur2010-07-141-0/+1
| | | | | | | | | | Also includes some re-factoring changes. Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1063 (gluster volume create command segfaults) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1063
* gluster-CLI-and-mgmt-glusterd-added-to-codebaseAmar Tumballi2010-07-081-0/+51
Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Amar Tumballi <amar@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
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