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* rpcsvc: allocate large auxgid list on demandAnand Avati2013-09-191-1/+2
| | | | | | | | | | | | | | | | For rpc requests having large aux group list, allocate large list on demand. Else use small static array by default. Without this patch, glusterfsd allocates 140+MB of resident memory just to get started and initialized. Change-Id: I3a07212b0076079cff67cdde18926e8f3b196258 Signed-off-by: Anand Avati <avati@redhat.com> BUG: 953694 Reviewed-on: http://review.gluster.org/5927 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5928
* parser: make the parser thread safe.Anand Avati2013-09-101-7/+10
| | | | | | | | | | | | | | The volfile parser thread safe by guarding the parsing phase in a mutex. Thread safety becomes a problem when there are multiple glfs_t objects created by gfapi and all of them potentially parse the respective volfiles at the same time. Change-Id: I4376019c4956994b72397ab36e6ac3ce849797ec BUG: 1004519 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5872 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* core: increase the auxillary group limit to 65536Anand Avati2013-09-094-5/+54
| | | | | | | | | | | | Make the allocation of groups dynamic and increase the limit to 65536. Change-Id: I702364ff460e3a982e44ccbcb3e337cac9c2df51 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5172 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* mount/fuse: perform lookup() on inodes linked through readdirplusAnand Avati2013-09-092-11/+12
| | | | | | | | | | | | | | | | Some xlators still require lookup() fop to be sent for proper working. This patch remembers inodes which have been linked through readdiprlus and makes the resolver send lookups on them. Also, introduce and use context count for inode table. Change-Id: Ibe8a04a659539d90dfc794521b51bf2bda017a0b BUG: 979910 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5267 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-on: http://review.gluster.org/5806
* call-stub: remove fall-through in ftruncateRaghavendra Bhat2013-09-051-0/+1
| | | | | | | | | | | Original-author: Pranith Kumar K <pkarampu@redhat.com> Change-Id: I7c8ed3e3e4ddc558ff061f2e1407fb43095e67f4 BUG: 913544 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/5827 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* call-stub: internal refactorAnand Avati2013-09-052-2955/+1065
| | | | | | | | | | | | | | | | | | | - re-structure members of call_stub_t with new simpler layout - easier to inspect call_stub_t contents in gdb now - fix a bunch of double unrefs and double frees in cbk stub - change all STACK_UNWIND to STACK_UNWIND_STRICT and thereby fixed a lot of bad params - implement new API call_unwind_error() which can even be called on fop_XXX_stub(), and not necessarily fop_XXX_cbk_stub() Change-Id: Idf979f14d46256af0afb9658915cc79de157b2d7 BUG: 846240 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4520 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/5820 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* include <limits.h> for PATH_MAXEmmanuel Dreyfus2013-07-181-0/+1
| | | | | | | | | | | | | | | I need to include <limits.h> in order to use PATH_MAX, Otherwise it will not build at mine. I believe it is standard compliant to do so: http://pubs.opengroup.org/onlinepubs/009695399/basedefs/limits.h.html Backport of I3f124466f7f7742e94a9d1256bc9239ec16aab04 BUG: 764655 Change-Id: I92c79dfd439f41bfa2a970c16c13a60ea6baa2f8 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/5342 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* mount/fuse: Provide option to use/not use kernel-readdirpv3.4.0Pranith Kumar K2013-07-121-0/+1
| | | | | | | | | | | | | By default fuse kernel readdirp usage in fuse xlator is off. When mount option use-readdirp=yes is provided it starts using fuse-kernel's readdirp. BUG: 983477 Change-Id: Ibdaf1407d6f2a782a4a1916fad374f36fca6c5e7 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5323 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Update comment with op-version mappingKaushal M2013-07-041-1/+1
| | | | | | | | | Change-Id: If024921f2ce2c2d7c94b4a490585130dcf108d53 BUG: 981278 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5288 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* store: move glusterd_store functions from mgmt/glusterd to libglusterfsKrishnan Parthasarathi2013-07-034-3/+739
| | | | | | | | | | | | | | | | Backport of http://review.gluster.org/4676 and http://review.gluster.org/5243 Making the glusterd_store_* functions re-usable will help with future changes that need to read/write lists of items. BUG: 904065 Change-Id: I99fb8eced76d12d5a254567eccff9790b43d8da3 Original-author: Niels de Vos <ndevos@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5279 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/afr: Perform delayed changelog wakeups for anon fdv3.4.0beta3Pranith Kumar K2013-06-102-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | Problem: Nfs xlator never does open on a file for performing writes, afr does not perform changelog wakeup for this fd so operations which do metadata operations as soon as the data operations are completed perceive a delay od 'post-op-delay-secs'. Fix: Perform changelog wakeup on anon-fd if the fd with same pid is not present in inode-list. Note: This approach is a short-term fix. A proper fix needs a new domain for taking metadata locks so that data/metadata locks don't compete with each other. BUG: 966018 Change-Id: Ia9188a253e7943801b665e1b9205e2f551952d87 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5067 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* dht,posix: support for case discoveryAnand Avati2013-06-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is support for discovering a filename in a given directory which has a case insensitive match of a given name. It is implemented as a virtual extended attribute on the directory where the required filename is specified in the key. E.g: sh# getfattr -e "text" -n user.glusterfs.get_real_filename:FiLe-B /mnt/samba/patchy getfattr: Removing leading '/' from absolute path names # file: mnt/samba/patchy user.glusterfs.get_real_filename:FiLe-B="file-b" In reality, there can be multiple "answers" as the backend filesystem is case sensitive and there can be multiple files which can strcasecamp() successfully. In this case we pick the first matched file from the first responding server. If a matching file does not exist, we return ENOENT (and NOT ENODATA). This way the caller can differentiate between "unsupported" glusterfs API and file not existing. This API is used by Samba VFS to perform efficient discovery of the real filename without doing a full scan at the Samba level. Change-Id: I53054c4067cba69e585fd0bbce004495bc6e39e8 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5163 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: link inodes in relevant entry FOPsAnand Avati2013-06-082-8/+33
| | | | | | | | | | | | Do not let inode linking to happen only in lookup(). While that works, it is inefficient. Change-Id: I51bbfb6255ec4324ab17ff00566375f49d120c06 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5162 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* syncop: copy inode pointer in readdirplusAnand Avati2013-06-081-0/+2
| | | | | | | | | Change-Id: I9ab2b8ac2da9fe13f56b8b08f715a0b603ece0cb BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5161 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: POSIX locking supportAnand Avati2013-06-082-0/+37
| | | | | | | | | Change-Id: I37d9e1fb4a715094876be6af3856c1b4cf398021 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5155 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* syncop: set credentials of running process in @frameAnand Avati2013-06-081-1/+18
| | | | | | | | | | | | | | | Inherit the pid/euid/egid/groups of the running process in the frame. Do this only in cases where a loaded frame was not presented to the synctask. This behavior is required for Samba VFS. Change-Id: Ib181c90f47c6741197b9ce9f67a19e2914b647d2 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5153 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Avoid order mismatch in blocking entrylksPranith Kumar K2013-06-062-0/+18
| | | | | | | | | | | | | | | | | | | | | | Problem: When taking blocking entrylks, afr orders the entrylks based on uuid_compare of gfids of parent dirs, if they are equal then it orders them based on the basenames. While this approach works fine, the implementation assumes loc->gfids to be populated at the time of the comparison, but loc may have gfid in loc->inode->gfid instead of loc->gfid which was leading to order mismatches and dead-locks. Fix: Implemented loc_gfid which gives gfid by checking both loc->gfid, loc->inode->gfid. Used this for ordering the blocking entrylks. Change-Id: I2743fcaff3d670fbeb6b8e0a496f106a3585dde1 BUG: 965987 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5063 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd-volgen: Improve volume op-versions calculationKaushal M2013-06-053-26/+9
| | | | | | | | | | | | | | | | | | Backport of patch on master branch, under review at http://review.gluster.org/4952 Volume op-versions calculations now take into account if an option, a. enables/disables an xlator, or b. is a boolean option. This prevents op-versions from being updated when a feature is disabled. BUG: 954256 Change-Id: Ic68032b9e55a3f0191f8fc3ecd6b5ced385ad943 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5094 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Introduce volume op-versionsKaushal M2013-06-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | This is a backport of change 9153855 glusterd: Introduce volume op-versions from master. Each volume is now associated with two op-versions, * op_version - the op-version of the highest op-versioned feature enabled * client_op_version - the op-version of the highest op-versioned feature enabled which affects the clients only. These two op-versions are generated dynamically and kept updated during runtime. Glusterd now uses the respective volumes' client-op-version during getspec requests. To achieve the above a new field in the vme table is introduced, client_option, this boolean field tells if the option is a client side option. BUG: 907311 Change-Id: I59af02644a714e1c54fc89f1ead5aa551bba7ee7 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/4957 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nfs: change default nfs port to 2049Rajesh Amaravathi2013-05-231-1/+1
| | | | | | | | | | | | | | | This change makes it possible to mount glusterfs volumes without specifying vers=3 option. Change-Id: If5a974e2bdfd2adbeac3d82af774310cdf30f988 BUG: 832939 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/4840 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/5078 Reviewed-by: Anand Avati <avati@redhat.com>
* syncop: synctask shouldn't yawn, it could miss a 'wake'Krishnan Parthasarathi2013-05-232-25/+5
| | | | | | | | | | | Backport of http://review.gluster.org/5058 Change-Id: I7731fd33ca0c925cc52f8d105275b44fc625a1e2 BUG: 948686 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5071 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* syncop: Remove task from syncbarrier's waitq before 'wake'Krishnan Parthasarathi2013-05-211-7/+5
| | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/5047 Removing task from syncbarrier's waitq after wake could result in a subsequent syncbarrier_wake, wake'ing up the already running task. This fix makes the removal from waitq and wake 'atomic' The root cause and the fix are similar in spirit to what was observed in synclock's waitq implementation. Change-Id: I7dd9e6ad5945742bcda20eb5a06a9376bb18528e BUG: 948686 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5054 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* syncop: Update synctask state appropriatelyKrishnan Parthasarathi2013-05-212-2/+5
| | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/4985 * Earlier, SYNCOP macro, the only consumer of synctask_yield, would set the task->state to SYNCTASK_SUSPEND. Today, we have glusterd having its own wrapper macros which don't set task's state. There is also the syncbarrier and synclock framework, which also participate in a synctask's scheduling (and need to keep a task's state up to date). It only makes more sense to leave a synctask's state to the synctask library, since its an internal affair. * Need to 'yawn' before 'yield' to avoid re-running tasks to set task->woken appropriately. Change-Id: Ic7a59e6ebcc46f03e53223ca237668d45a3cba40 BUG: 948686 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5053 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Refresh glusterd-syncop fixes from masterKrishnan Parthasarathi2013-05-162-53/+165
| | | | | | | | | | | | | | | | | | | Following commits were cherry-picked from master, 044f8ce syncop: Remove task from synclock's waitq before 'wake' cb6aeed glusterd: Give up big lock before performing any RPC 46572fe Revert "glusterd: Fix spurious wakeups in glusterd syncops" 5021e04 synctask: implement barriers around yield, not the other way 4843937 glusterd: Syncop callbks should take big lock too Change-Id: I5ae71ab98f9a336dc9bbf0e7b2ec50a6ed42b0f5 BUG: 948686 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/4938 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5021 Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libglusterfs: avoid the logging which says the port is invalidRaghavendra Bhat2013-05-081-8/+2
| | | | | | | | | | | | If the reserved ports file in proc contains just a newline, then do not proceed with ports checking and reserving. Change-Id: I776d0be1c3824dcd982f0685b171f2172b4e11e6 BUG: 762989 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4821 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Fix uninitialized mutex usage in synctask_destroyEmmanuel Dreyfus2013-05-041-3/+4
| | | | | | | | | | | | | | | | | | synctask_new() initialize task->mutex is task->synccbk is NULL. synctask_done() calls synctask_destroy() if task->synccbk is not NULL. synctask_destroy() always destroys the mutex. Fix that by checking for task->synccbk in synctask_destroy() This is a backport of I50bb53bc6e2738dc0aa830adc4c1ea37b24ee2a0 BUG: 764655 Change-Id: I3d6292f05a986ae3ceee35161791348ce3771c12 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/4920 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* syncenv: be robust against spurious wake()sKrishnan Parthasarathi2013-04-171-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the current implementation, when the callers of synctasks perform a spurious wake() of a sleeping synctask (i.e, an extra wake() soon after a wake() which already woke up a yielded synctask), there is now a possibility of two sync threacs picking up the same synctask. This can result in a crash. The fix is to change ->slept = 0|1 and membership of synctask in runqueue atomically. Today we dequeue a task from the runqueue in syncenv_task(), but reset ->slept = 0 much later in synctask_switchto() in an unlocked manner -- which is safe, when there are no spurious wake()s. However, this opens a race window where, if a second wake() happens after the dequeue, but before setting ->slept = 0, it results in queueing the same synctask in the runqueue once again, and get picked up by a different synctask. This is has been diagnosed to be the crashes in the regression tests of http://review.gluster.org/4784. However that patch still has a spurious wake() [the trigger for this bug] which is yet to be fixed. BUG: 948686 Change-Id: I51858e887cad2680e46fb973629f8465f4429363 Original-author: Anand Avati <avati@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/4833 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* synctask: introduce synclocks for co-operative lockingKrishnan Parthasarathi2013-04-172-1/+167
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces a synclocks - co-operative locks for synctasks. Synctasks yield themselves when a lock cannot be acquired at the time of the lock call, and the unlocker will wake the yielded locker at the time of unlock. The implementation is safe in a multi-threaded syncenv framework. It is also safe for sharing the lock between non-synctasks. i.e, the same lock can be used for synchronization between a synctask and a regular thread. In such a situation, waiting synctasks will yield themselves while non-synctasks will sleep on a cond variable. The unlocker (which could be either a synctask or a regular thread) will wake up any type of lock waiter (synctask or regular). Usage: Declaration and Initialization ------------------------------ synclock_t lock; ret = synclock_init (&lock); if (ret) { /* lock could not be allocated */ } Locking and non-blocking lock attempt ------------------------------------- ret = synclock_trylock (&lock); if (ret && (errno == EBUSY)) { /* lock is held by someone else */ return; } synclock_lock (&lock); { /* critical section */ } synclock_unlock (&lock); BUG: 763820 Change-Id: I23066f7b66b41d3d9fb2311fdaca333e98dd7442 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Original-author: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4830 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* rpc: before freeing the volume options object, delete it from the listRaghavendra Bhat2013-04-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | * Suppose there is an xlator option which is considered by the xlator only if the source was built with debug mode enabled (the only example in the current code base is run-with-valgrind option for glusterd), then giving that option would make the process crash if the source was not built with debug mode enabled. Reason: In rpc, after getting the options symbol dynamically, it was stored in the newly allocated volume options structure and the structure's list head was added to the xlator's volume_options list. But while freeing the structure the list was not deleted. Thus when the list was traversed, already freed structure was accessed leading to segfault. Change-Id: I3e9e51dd2099e34b206199eae7ba44d9d88a86ad BUG: 922877 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4687 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-on: http://review.gluster.org/4818 Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* dict: Put "goto out" in dict_unserialize to avoid process crashVenkatesh Somyajulu2013-04-121-0/+1
| | | | | | | | | | | | | | | | Problem: In the dictionary serialization function, if the [(buf + vallen) > (orig_buf + size)], then memdup is getting failed. Fix: Put "goto out" whenever this condition is met. Change-Id: I8c07dd5187364ccd6ad7625e2e3907d8b56447a9 BUG: 947824 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/4771 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* libglusterfs/dict: fix infinite loop in dict_keys_join()Vijaykumar Koppad2013-03-271-2/+4
| | | | | | | | | | | | - missing "pairs = next" caused infinite loop Change-Id: I3edc4f50473f7498815c73e1066167392718fddf BUG: 905871 Signed-off-by: Vijaykumar Koppad <vkoppad@redhat.com> Reviewed-on: http://review.gluster.org/4728 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Increasing throughput of synctask based mgmt ops.Krishnan Parthasarathi2013-03-061-0/+1
| | | | | | | | | Change-Id: Ibd963f78707b157fc4c9729aa87206cfd5ecfe81 BUG: 913662 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/4638 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* synctask: support for (assymetric) counted barriersKrishnan Parthasarathi2013-03-062-76/+122
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [Backport of Avati's patch on master - http://review.gluster.org/4558] This patch introduces a new set of primitives: - synctask_barrier_init (stub) - synctask_barrier_waitfor (stub, count) - synctask_barrier_wake (stub) Unlike pthread_barrier_t, this barrier has an explicit notion of "waiter" and "waker". The "waiter" waits for @count number of "wakers" to call synctask_barrier_wake() before returning. The wait performed by the waiter via synctask_barrier_waitfor() is co-operative in nature and yields the thread for scheduling other synctasks in the mean time. Intended use case: Eliminate excessive serialization in glusterd and allow for concurrent RPC transactions. Code which are currently in this format: ---old--- list_for_each_entry (peerinfo, peers, op_peers_list) { ... GD_SYNCOP (peerinfo->rpc, stub, rpc_cbk, ...); } ... int rpc_cbk (rpc, stub, ...) { ... __wake (stub); } ---old--- Can be restructred into the format: ---new--- synctask_barrier_init (stub); { list_for_each_entry (peerinfo, peers, op_peers_list) { ... rpc_submit (peerinfo->rpc, stub, rpc_cbk, ...); count++; } } synctask_barrier_wait (stub, count); ... int rpc_cbk (rpc, stub, ...) { ... synctask_barrier_wake (stub); } ---new--- In the above structure, from the synctask's point of view, the region between synctask_barrier_init() and synctask_barrier_wait() are spawning off asynchronous "threads" (or RPC) and keep count of how many such threads have been spawned. Each of those threads are expected to make one call to synctask_barrier_wake(). The call to synctask_barrier_wait() makes the synctask thread co-operatively wait/sleep till @count such threads call their wake function. This way, the synctask thread retains the "synchronous" flow in the code, yet at the same time allows for asynchronous "threads" to acheive parallelism over RPC. Change-Id: Ie037f99b2d306b71e63e3a56353daec06fb0bf41 BUG: 913662 Signed-off-by: Anand Avati <avati@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/4636 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* synctask: implement setuid-like SYNCTASK_SETID()shishir gowda2013-03-042-0/+30
| | | | | | | | | | | | | | | | | synctasks can now call SYNCTASK_SETID(uid,gid) to set the effective uid/gid of the frame with which the FOP will be performed. Once called, the uid/gid is set either till the end of the synctask or till the next call of SYNCTASK_SETID() Back-porting Avati's patch http://review.gluster.org/#change,4269 BUG: 884597 Change-Id: Id0569da4bb8959636881457217fe004bf30c5b9d Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/4611 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* libglusterfs: Fix memory leaks in fd_lk_insert_and_mergeVijay Bellur2013-03-031-3/+5
| | | | | | | | | | Change-Id: I666664895fdd7c7199797796819e652557a7ac99 BUG: 834465 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/4529 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* Better mechanism to handle memory accountingVijay Bellur2013-03-031-11/+2
| | | | | | | | | | | | | | | Memory accounting will now be enabled if: 1) Any glusterfs process is spawned with argument --mem-accounting. 2) DEBUG is defined. Change-Id: I3345e114127a57ce61916be0e2c4e0049a4c3432 BUG: 834465 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/4527 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* glusterd: harden 'volume start' staging to check for brick dirs' presenceKrutika Dhananjay2013-02-082-0/+33
| | | | | | | | | | | | | | | | | | | | | PROBLEM: When the brick directory of a volume is absent on any of the servers, AND an attempt is made to start the volume, commit fails ONLY on the node where the brick dir is absent, leading to a split-brain like situation. FIX: Harden 'volume start' to check for the presence of brick directories at the time of staging, thereby preventing commit failure. Change-Id: I67faeb9afbd3aa76f08645924462db126bf7a977 BUG: 889996 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/4365 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* rpc: get hostnames of client to allow FQDN based authenticationRajesh Amaravathi2013-02-062-0/+72
| | | | | | | | | | | | | | If FQDNs are used to authenticate clients, then from this commit forth, the client ip(v4,6) is reverse looked up using getnameinfo to get a hostname associated with it, if any, thereby making FQDN-based rpc authentication possible. Change-Id: I4c5241e7079a2560de79ca15f611e65c0b858f9b BUG: 903553 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/4439 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* libglusterfs/core: dump frame and callstack creation times in statedumpRaghavendra Bhat2013-02-063-85/+165
| | | | | | | | | Change-Id: I3772602ac264cbca490d77a0343038297faee7df BUG: 844688 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4087 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd,glusterfsd,libgfapi: Client op-versionKaushal M2013-02-061-0/+18
| | | | | | | | | | | | | | | This patch introduces op-version support for glusterfs clients. Now, a client sends its supported op-versions during the volfile fetch request and glusterd will return the volfile only if the client can support the current op-version of the cluster. Change-Id: Iab1f1f1706802962bcf27058657c44e8a344d2f6 BUG: 907311 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/4247 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* libglusterfs: Maintain open-fd-count in inode.Pranith Kumar K2013-02-063-0/+8
| | | | | | | | | Change-Id: I643d02959f92e40f68a53baf165753ed20f8b3e0 BUG: 908146 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/4468 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* protocol/client: Periodically attempt reopensPranith Kumar K2013-02-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | 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>
* fd-lk: implement new method to check for empty fd_lk_ctx_tAnand Avati2013-01-302-0/+22
| | | | | | | | | | | | to use this in fuse-bridge, to conditionally attempt lock migration to new graph. Change-Id: I9b10d5839c4ac6051c75e4c020371391cd886ac8 BUG: 808400 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4455 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* libglusterfs/syncop: do not hold ref on the fd in cbkRaghavendra Bhat2013-01-301-6/+0
| | | | | | | | | | | | | * Do not do fd_ref in cbks of the fops which return a fd (such as open, opendir, create). Change-Id: Ic2f5b234c5c09c258494f4fb5d600a64813823ad BUG: 885008 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4282 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfs : Moved option files, and statedumps from /tmpAvra Sengupta2013-01-294-20/+30
| | | | | | | | | Change-Id: Ibdede396c4d6859225937316b7a59a661bcaf9f5 BUG: 764890 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4422 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fd: expose __fd_ctx_del symbolAnand Avati2013-01-282-1/+5
| | | | | | | | | | used by open-behind for deleting context in locked critical region Change-Id: I3380152211fed6aacbb719468b720376e6ec1e7c BUG: 846240 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4405 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* fd: filter anonymous FD from fd_lookup() resultAnand Avati2013-01-281-0/+6
| | | | | | | | | | | | Those callers whose requirements can accommodate an anonymous FD need to call fd_anonymous(). fd_lookup() is strictly for open()ed file descriptors only. Change-Id: I5d8da3db0f44b2e2161d345d7a662cfd4ef87500 BUG: 846240 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4404 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* "gcc -pedantic": made 'inline' functions as 'static inline' functionsAmar Tumballi2013-01-232-3/+3
| | | | | | | | | | | | for passing the build with -pedantic flag Change-Id: I80fd9528321e4c6ea5bec32bf5cdc54cc4e4f65e BUG: 875913 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/4186 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: fixes for gcc's '-pedantic' flag buildAvra Sengupta2013-01-214-48/+48
| | | | | | | | | | | | | * warnings on 'void *' arguments * warnings on empty initializations * warnings on empty array (array[0]) Change-Id: Iae440f54cbd59580eb69f3ecaed5a9926c0edf95 BUG: 875913 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4219 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* debug/trace: save the recent fops received in the event-historyRaghavendra Bhat2013-01-173-6/+13
| | | | | | | | | | | | | | | | | * Make use of event-history in debug/trace xlator to dump the recent fops, when statedump is given. trace xlator saves the fop it received along with the time in the event-history and upon statedump signal, dumps its history. The size of the event-history can be given as a xlator option. * Make changes in trace to take logging into log-file or logging to history as an option. By default both are off. Change-Id: I12baee5805c6efb55735cead4e2093fb94d7a6a0 BUG: 797171 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4088 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
generated by cgit (git 2.34.1) at 2024-11-14 13:20:34 +0000