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* cluster/afr: Add commands to see self-heald opsPranith Kumar K2012-02-201-6/+26
| | | | | | | | | Change-Id: Id92d3276e65a6c0fe61ab328b58b3954ae116c74 BUG: 763820 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/2775 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Self-heald, Index integrationPranith Kumar K2012-02-201-13/+6
| | | | | | | | | Change-Id: Ic68eb00b356a6ee3cb88fe2bde50374be7a64ba3 BUG: 763820 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/2749 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* locks: Added a getxattr interface to clear locks on a given inode.Krishnan Parthasarathi2012-02-141-9/+15
| | | | | | | | | | | | | | | | getxattr returns a summary of no. of inodelks/entrylks cleared. cmd_structure: trusted.glusterfs.clrlk.t<type>.k<kind>[.{range|basename}] where, type = "inode"| "entry"| "posix" kind = "granted"| "blocked" | "all" range = off,a-b, where a, b = 'start', 'len' from offset 'off' Change-Id: I8a771530531030a9d4268643bc6823786ccb51f2 BUG: 789858 Signed-off-by: Krishnan Parthasarathi <kp@gluster.com> Reviewed-on: http://review.gluster.com/2551 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Perform xattrop with all afr-keysPranith Kumar K2012-01-271-37/+45
| | | | | | | | | | | | | | | | | | | | | | | | Self-heal does not happen if the file has change log xattr only for one of the subvol keys. This patch makes sure that xattrop is done for all the afr subvol keys after a new entry is created in entry-self-heal. 1) Added matrix create/cleanup functions 2) Impunging a new file does multiple xattrops on the source subvol, one per sink. The code can do a single xattrop after the entry is created on all the sinks. 3) Missing entry self-heal uses one frame per sink to heal the file. This leads to multiple xattrops on the source subvol. That code is changed now to use one frame which will create the file on all subvols. Change-Id: I65a42f9779b03f7efae283479f8653fb2cb8046b BUG: 762680 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/2503 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Krishnan Parthasarathi <kp@gluster.com>
* core: get xattrs also as part of readdirpAmar Tumballi2012-01-251-0/+5
| | | | | | | | | | | | | readdirp_req() call sends a dict_t * as an argument, which contains all the xattr keys for which the entries got in readdirp_rsp() are having xattr value filled dictionary. Change-Id: I8b7e1290740ea3e884e67d19156ce849227167c0 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 765785 Reviewed-on: http://review.gluster.com/771 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core: GFID filehandle based backend and anonymous FDsAnand Avati2012-01-201-64/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. What -------- This change introduces an infrastructure change in the filesystem which lets filesystem operation address objects (inodes) just by its GFID. Thus far GFID has been a unique identifier of a user-visible inode. But in terms of addressability the only mechanism thus far has been the backend filesystem path, which could be derived from the GFID only if it was cached in the inode table along with the entire set of dentry ancestry leading up to the root. This change essentially decouples addressability from the namespace. It is no more necessary to be aware of the parent directory to address a file or directory. 2. Why ------- The biggest use case for such a feature is NFS for generating persistent filehandles. So far the technique for generating filehandles in NFS has been to encode path components so that the appropriate inode_t can be repopulated into the inode table by means of a recursive lookup of each component top-down. Another use case is the ability to perform more intelligent self-healing and rebalancing of inodes with hardlinks and also to detect renames. A derived feature from GFID filehandles is anonymous FDs. An anonymous FD is an internal USABLE "fd_t" which does not map to a user opened file descriptor or to an internal ->open()'d fd. The ability to address a file by the GFID eliminates the need to have a persistent ->open()'d fd for the purpose of avoiding the namespace. This improves NFS read/write performance significantly eliminating open/close calls and also fixes some of today's limitations (like keeping an FD open longer than necessary resulting in disk space leakage) 3. How ------- At each storage/posix translator level, every file is hardlinked inside a hidden .glusterfs directory (under the top level export) with the name as the ascii-encoded standard UUID format string. For reasons of performance and scalability there is a two-tier classification of those hardlinks under directories with the initial parts of the UUID string as the directory names. For directories (which cannot be hardlinked), the approach is to use a symlink which dereferences the parent GFID path along with basename of the directory. The parent GFID dereference will in turn be a dereference of the grandparent with the parent's basename, and so on recursively up to the root export. 4. Development --------------- 4a. To leverage the ability to address an inode by its GFID, the technique is to perform a "nameless lookup". This means, to populate a loc_t structure as: loc_t { pargfid: NULL parent: NULL name: NULL path: NULL gfid: GFID to be looked up [out parameter] inode: inode_new () result [in parameter] } and performing such lookup will return in its callback an inode_t populated with the right contexts and a struct iatt which can be used to perform an inode_link () on the inode (without a parent and basename). The inode will now be hashed and linked in the inode table and findable via inode_find(). A fundamental change moving forward is that the primary fields in a loc_t structure are now going to be (pargfid, name) and (gfid) depending on the kind of FOP. So far path had been the primary field for operations. The remaining fields only serve as hints/helpers. 4b. If read/write is to be performed on an inode_t, the approach so far has been to: fd_create(), STACK_WIND(open, fd), fd_bind (in callback) and then perform STACK_WIND(read, fd) etc. With anonymous fds now you can do fd_anonymous (inode), STACK_WIND (read, fd). This results in great boost in performance in the inbuilt NFS server. 5. Misc ------- The inode_ctx_put[2] has been renamed to inode_ctx_set[2] to be consistent with the rest of the codebase. Change-Id: Ie4629edf6bd32a595f4d7f01e90c0a01f16fb12f BUG: 781318 Reviewed-on: http://review.gluster.com/669 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core/setxattr: prevent users from setting glusterfs xattrsRajesh Amaravathi2012-01-141-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | * Each xlator prevents the user from setting glusterfs-internal xattrs like trusted.gfid by handling it in respective setxattr functions. The speacial case of trusted.gfid is handled in fuse (Not in posix because posix_setxattr is used to set gfid). * For xlators which did not define setxattr and/or fsetxattr, the functions have been implemented with appropriate checks. xlator | fops-added _______________|__________________________ | 1. afr | fsetxattr 2. stripe | setxatrr and fsetxattr 3. quota | setxattr and fsetxattr Change-Id: Ib62abb7067415b23a708002f884d30e8866fbf48 BUG: 765487 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.com/685 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com>
* cluster/afr: Handle fini for afr,pumpv3.3.0qa19Pranith Kumar K2011-12-281-5/+36
| | | | | | | | | Change-Id: Idc0a05a8a25f278a7ab05e242263e0a5001bde18 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> BUG: 767862 Reviewed-on: http://review.gluster.com/800 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: EIO should overwrite ENOENT in lookupPranith Kumar K2011-12-281-2/+3
| | | | | | | | | | | | | | | In case if lookup decides there is a gfid-mismatch, some enoents and self-heal cant remove the stale entry, it tells lookup to unwind with EIO but since ENOENT has more priority it is not over-written, this patch fixes that case. Change-Id: Icd68c4a5cf05dd97c568964ab647a34fdb6e26f4 BUG: 765528 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/2541 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Handle error cases in local initPranith Kumar K2011-12-281-137/+103
| | | | | | | | | | | | - Fop should unwind with appropriate errno - Local is de-allocated on errors Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Change-Id: I4db40342ae184fe1cc29e51072e8fea72ef2cb15 BUG: 770513 Reviewed-on: http://review.gluster.com/2539 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Add command-line support (but no doc) for enforce-quorum option.Jeff Darcy2011-11-281-25/+30
| | | | | | | | Change-Id: Ia52ddb551e24c27969f7f5fa0f94c1044789731f BUG: 3823 Reviewed-on: http://review.gluster.com/743 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Update read-child if it becomes stalePranith Kumar K2011-11-281-10/+10
| | | | | | | | Change-Id: I00c714a89575023f6dbdd3430dcbf191e5d08019 BUG: 3650 Reviewed-on: http://review.gluster.com/740 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Fix memory leaksPranith Kumar K2011-11-231-1/+8
| | | | | | | | Change-Id: I79a1c70c47649fbcf236191f174d766d5806545c BUG: 3805 Reviewed-on: http://review.gluster.com/719 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Handle absence of gfid in lookupPranith Kumar K2011-11-231-6/+16
| | | | | | | | Change-Id: I6295245a7f40ba4f786f1f9f35b337f3f711128d BUG: 3783 Reviewed-on: http://review.gluster.com/739 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Add quorum checks to avoid split-brain.Jeff Darcy2011-11-201-0/+32
| | | | | | | | Change-Id: I2f123ef93989862aa796903a45682981d5d7fc3c BUG: 3533 Reviewed-on: http://review.gluster.com/473 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: lookup should honor gfid present in locPranith Kumar K2011-11-181-2/+7
| | | | | | | | Change-Id: I2319258743e478cc3a932d8ff0b2204a97cd4f8e BUG: 3760 Reviewed-on: http://review.gluster.com/680 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* glusterfs: An effort to fix all the spell mistakes and typoHarshavardhana2011-11-161-1/+1
| | | | | | | | | | | | | | | in the entire glusterfs codebase. This patch fixes many of spell mistakes and typo in the entire glusterfs codebase and all supported modules. Change-Id: I83238a41aa08118df3cf4d1d605505dd3cda35a1 BUG: 3809 Signed-off-by: Harshavardhana <fharshav@redhat.com> Reviewed-on: http://review.gluster.com/731 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* core: remove 'ino' variable from 'inode_t' structureAmar Tumballi2011-11-161-1/+2
| | | | | | | | Change-Id: I0f078d1753db65d2f2e0380d1b0450c114cf40dd BUG: 3518 Reviewed-on: http://review.gluster.com/522 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Remove unused 'ino' codePranith Kumar K2011-10-281-4/+0
| | | | | | | | Change-Id: I425e2d23e9e45f10ddeff2eacf918dd90f8baee7 BUG: 3744 Reviewed-on: http://review.gluster.com/639 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Take gfid-req from xattr_req only if inode->gfid is nullPranith Kumar K2011-10-281-29/+64
| | | | | | | | Change-Id: Iddf5b59d3534c517dcd3c0d7b819e3768f6e915a BUG: 3747 Reviewed-on: http://review.gluster.com/637 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* build: warning suppression (round n)Amar Tumballi2011-10-201-3/+0
| | | | | | | | | | with this patch, there are no more warnings with gcc (GCC) 4.6.1 20110908 Change-Id: Ice0d52d304b9846395f8a4a191c98eb53125f792 BUG: 2550 Reviewed-on: http://review.gluster.com/607 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* cluster/afr: Prevent truncation of mask uint64_t->gf_boolean_tPranith Kumar K2011-10-141-4/+8
| | | | | | | | Change-Id: If67f726f21b713fa9312dc499a1aca4cb00f71de BUG: 3682 Reviewed-on: http://review.gluster.com/589 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* statedump: do not print the inode number in the statedumpRaghavendra Bhat2011-10-011-31/+18
| | | | | | | | | | | | | Since gfid is used to uniquely identify a inode, in the statedump printing inode number is not necessary. Its suffecient if the gfid of the inode is printed. And do not print the the inodelks, entrylks and posixlks if the lock count is 0. Change-Id: Idac115fbce3a5684a0f02f8f5f20b194df8fb27f BUG: 3476 Reviewed-on: http://review.gluster.com/530 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com>
* cluster/afr: set fd ctx on opendirPranith Kumar K2011-09-291-0/+34
| | | | | | | | Change-Id: Ica845035781f47de990e9dcfefdeb37bed99d515 BUG: 3637 Reviewed-on: http://review.gluster.com/536 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Handle files without gfid in self-healPranith Kumar K2011-09-291-2/+3
| | | | | | | | Change-Id: Ibcaaa9c928195939ff1e31b28b592e524e63a423 BUG: 3557 Reviewed-on: http://review.gluster.com/519 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 Parthasarathi2011-09-221-0/+8
| | | | | | | | | | | | | 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>
* cluster/afr: Make local->child_up immutablePranith Kumar K2011-09-211-1/+15
| | | | | | | | | | | | | | | | | | | | | | | Afr transaction performs lock, pre-op, op, post-op and unlock steps in that order. The child_up[] is overloaded with the information of where all the first two steps succeeded. This works perfectly fine for Transaction, but the locking/unlocking part of the code is re-used by data self-heal. In that each loop_frame does lock, rchecksum, read-from-source and write-to-sinks, unlock steps. Rchecksum fop assumes that the fop needs to happen on one source + all sinks and sets the call_count to that number. But if the lock step fails on any of the sinks it will mark the child_up of that child to 0, which will result in call_count mismatch and the frame will hang thinking that some more cbks need to come. When this happens loop_frame will never go to unlock step leading to hangs on that file. Change-Id: I3dd0449cc6193a980bacf637d935881f4b22210a BUG: 3597 Reviewed-on: http://review.gluster.com/474 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Proactive self heal process implementationPranith Kumar K2011-09-141-5/+28
| | | | | | | | Change-Id: I96db0d94566ceabf1649f890318363f738c06553 BUG: 2458 Reviewed-on: http://review.gluster.com/403 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Make data selfheal trigger to be configurable.Pranith Kumar K2011-09-081-56/+81
| | | | | | | | | | | | | | | | | | | | By default, lookup triggers data self-heal but that is not the preferred way of operating replicated volumes. We would like the data self heals to be triggered in open instead. Number of back-ground self-heals allowed is 16 and lookups block until self-heal is completed. We want to prevent blocking in fops. We can not make lookups independent of self-heal frames because when there are gfid conflicts the decision of which file is correct is determined in self-heal phase. So in afr, lookup self-heal is going to guarantee name space consistency and open/fd fops will take responsibility for data consistency, these are non blocking. The user needs to set the option cluster.data-self-heal "open" for this behavior. Change-Id: If9463cdb9ebac114708558ec13bbca0270acd659 BUG: 3503 Reviewed-on: http://review.gluster.com/334 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* cluster/afr: eager locking of FD writesAnand Avati2011-09-081-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is a change in the way write transactions hold a lock which optimizes the case of sequential writes from a single writer. Lock phase of a transaction has two sub-phases. First is an attempt to acquire locks in parallel by broadcasting non-blocking lock requests. If lock aquistion fails on any server, then the held locks are unlocked and revert to a blocking locked mode sequentially on one server after another. The change in this patch is to make the initial broadcasting lock request attempt to acquire lock on the entire file. If this fails, we revert back to the sequential "regional" blocking lock as before. In the case where such an "eager" lock is granted in the non-blocking phase, it gives rise to an opportunity for optimization. i.e, if the next write transaction on the same FD arrives before the unlock phase of the first transaction, it "takes over" the full file lock. Similarly if yet another transaction arrives before the unlock phase of the "optimized" transaction, that in turn "takes over" the lock as well. The actual unlock now happens at the end of the last "optimzed" transaction. Any operation which arrives before the unlock phase of the previous transaction is a potential candidate to become an "optimized" transaction. In cases where the previous transaction had aquired lock as a "regional" blocking lock, and the next transaction comes in before its unlock phase, then it would not be an "optimized" transaction. Implied assumption ------------------ Since two or more transactions can now operate within the same large lock, there is a possibility that overlapping transactions can arrive at oppoosite orders on the servers. However in the larger picture this is not possible as write-behind already ensures that no two overlapping writes on an inode are in transit at the same time. Overlapping writes across clients are not a problem as they compete at locks anyways. Theoretical benefits and potential harms ---------------------------------------- In case of a single writer: The benefits are large for sequential writes. In the best case the entire file write can happen with just one lock and unlock per server, provided writes are coming in fast enough and getting pipelined by write-behind soon enough (which is usually the case). If the writes are not coming in fast enough, then the optimization "kicks in" for only those subsets of writes which are close enough to get "piggybacked". For random writes the benefits are the same as well. In any case the overall performance is better than or equal to the performance without this optimization for a single writer. In case of multiple writers: When multiple writers are not writing concurrently, there is no negative performance impact. When multiple writers are writing concurrently to the same region, there is no negative impact either, as they were previously getting arbitrated at the locks translator too. In the case of multiple writers writing to different regions concurrently, there will be an increased number of "failovers" from failed parallel non-blocking to sequential blocking regional locks. This above "worst case" has a simple workaround that as soon as we detect > 1 open-fd-count in lookup xattr, we can disable this optimization on those fds. Beneficial side-effects ----------------------- There is another similar optimization in AFR for changelogs which goes by the name of "changelog-piggybacking". That works in a similar way where pending flags get 'taken over' or 'piggybacked' by the next transaction if its 'pre-op' phase kicks in before the 'post-op' phase of the previous transaction. It has been observed that this changelog-piggybacking optimization gives a saving of about ~55% savings of xattr calls hitting the wire, measured across various types of network interfaces. The side effect of this eager-lock optimization is that it gives an almost 100% saving of xattr calls by making the optimistic-changelog work much more efficiently as it gives a wider overlap of the xattr phases of two consecutive transactions. Change-Id: I41c02eb3b64c14c68ef66a344610ec3f024cd59d BUG: 3409 Reviewed-on: http://review.gluster.com/240 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* Eliminate many "var set but not used" warnings with newer gcc.Jeff Darcy2011-09-071-4/+0
| | | | | | | | | | | | | | | | This fixes ~200 such warnings, but leaves three categories untouched. (1) Rpcgen code. (2) Macros which set variables in the outer (calling function) scope. (3) Variables which are set via function calls which may have side effects. Change-Id: I6554555f78ed26134251504b038da7e94adacbcd BUG: 2550 Reviewed-on: http://review.gluster.com/371 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* cluster/afr: fop should not continue if it is paused, until resumesPranith Kumar K2011-08-211-0/+7
| | | | | | | | | Change-Id: Ie026ebed98cf5ff75ae1a13437d29f67d0e0254a BUG: 3448 Reviewed-on: http://review.gluster.com/286 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendrabhat@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Perform self-heal without locking the whole filePranith Kumar K2011-08-201-28/+70
| | | | | | | | Change-Id: I206571c77f2d7b3c9f9d7bb82a936366fd99ce5c BUG: 3182 Reviewed-on: http://review.gluster.com/141 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: Update fresh_children in lookup if no other ops in progressPranith Kumar K2011-08-191-65/+155
| | | | | | | | | | | | | If write/truncate fails we should remove the child that failed the fop from the fresh children. The previous code assumes that the children that succeeded the fop are fresh children, which is wrong. Fixed that in this patch. Change-Id: I1e6e21e20faea00516a0fdd2e95f2d7e9cf9076d BUG: 3411 Reviewed-on: http://review.gluster.com/263 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cluster/afr: read_child should be >= 0v3.3.0qa2Pranith Kumar K2011-08-131-1/+3
| | | | | | | | Change-Id: I447fb6a93cdd77de322cd5ded30673411c4cf79e BUG: 3251 Reviewed-on: http://review.gluster.com/233 Reviewed-by: Vijay Bellur <vijay@gluster.com> Tested-by: Gluster Build System <jenkins@build.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>
* cluster/afr: Fix conflict files and gfid self-healPranith K2011-07-171-0/+5
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2745 (failure to detect split brain) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2745
* cluster/afr: Detect conflict/gfid self-healsPranith K2011-07-171-152/+469
| | | | | | | | | | Added some helper functions that can be reused Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2745 (failure to detect split brain) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2745
* cluster/afr: Choose next call child from fresh-children for inode-read-fopsPranith K2011-07-171-8/+29
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2840 (files not getting self-healed when the first child goes down) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2840
* cluster/afr: Add fresh children along with read-child to inode contextPranith K2011-07-171-158/+522
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2840 (files not getting self-healed when the first child goes down) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2840
* cluster/afr: Move afr local alloc functions from header files to sourcesPranith K2011-07-171-5/+114
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2840 (files not getting self-healed when the first child goes down) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2840
* cluster/afr: Handle lookups when self-heal is offPranith K2011-07-121-295/+482
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2586 (read child is set without checking the xattr) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2586
* core: fill 'ia_ino' from 'ia_gfid' in 'storage/posix' to preserve same ino ↵Amar Tumballi2011-06-161-72/+0
| | | | | | | | | | | | | | | number take the least significant 64bit from gfid and assign it to 'ia_ino', hence for a given file (or directory), the 'ia_ino' number is always same, and we need not worry about the 'itransform' in 'cluster/*' translators. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 3042 (inode number should be constant on storage) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=3042
* afr: holding stack var via dict_set_static_bin corrupts.Krishnan P2011-06-161-2/+15
| | | | | | | | Signed-off-by: Krishnan Parthasarathi <kp@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 3033 (Changes to replace-brick and syntask interface.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=3033
* cluster/afr: Log errors in afr self-heal with GF_LOG_ERRORPranith Kumar K2011-06-081-3/+3
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2986 (Failed operations should should be logged `E' or `W') URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2986
* cluster/afr: Send the first child up/down after all its children notifyPranith Kumar K2011-05-301-54/+107
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2870 (Inconsistent xattr values when creating bricks) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2870
* replicate: print favorite child as an int instead of unsigned intRaghavendra Bhat2011-05-201-1/+1
| | | | | | | | Signed-off-by: Raghavendra Bhat <raghavendrabhat@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2668 ([glusterfs-3.2.9qa7]: createbench error) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2668
* cluster/afr: set loc gfids for fresh lookupPranith Kumar K2011-05-041-0/+10
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2346 (Log message enhancements in GlusterFS - phase 1) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346
* Move the log `self-heal pending' message to INFO level.Sachidananda2011-05-031-1/+1
| | | | | | | | Signed-off-by: Sachidananda Urs <sac@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2867 (Move self-heal completed message to INFO level) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2867
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