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* map translator cleanup.Amar Tumballi2009-04-081-643/+1065
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Fix minor bug in afr_open_cbk.Vikas Gorur2009-04-081-3/+7
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Fix in changelog logic.Vikas Gorur2009-04-076-41/+254
| | | | | | If a writev fails, remember it by marking it in the fd context. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Consider a subvolume dead if an fop fails on itVikas Gorur2009-04-073-17/+19
| | | | | | | | | Transaction fops earlier called afr_transaction_child_died only if an fop failed due to ENOTCONN or EBADFD. Now they consider a child dead regardless of the reason for failure. This handles cases such as ENOSPC. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* nufa to take care of free disk-space while creating files.Amar Tumballi2009-04-061-32/+74
| | | | | | nufa gets awareness about the available free-disk-space in subvolumes. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Fix in return value of afr_sh_mark_sourcesVikas Gorur2009-04-063-10/+26
| | | | | | | | | | | | afr_sh_mark_sources now returns: -1 if two wise subvols conflict (split-brain) 0 if all subvols are innocent (no self-heal needed) >0 if sources found Also, changes to callers of afr_sh_mark_sources to handle return value properly. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* distribute to take care of available disk space while creating new dirs, and ↵Amar Tumballi2009-04-035-26/+384
| | | | | | | | files. distribute gets awareness about disk-space while creating the files Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Made afr inode context a 64-bit packed value instead of a structure.Vikas Gorur2009-04-034-313/+205
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Load balance read operations among subvolumes in afrVikas Gorur2009-04-024-110/+513
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Defined afr_inode_ctx_t structure.Vikas Gorur2009-04-022-11/+76
| | | | | | | | Notification of a split-brain situation, which was earlier signalled by the mere presence of inode context is now signalled by the 'split_brain' member in the structure. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* unify-self-heal: Fix un-ref'ing of incorrect dictShehjar Tikoo2009-04-021-1/+1
| | | | | | | | | | | | | dict_unref'ing of the dict in local results in a crash due to de-referencing a NULL spinlock. That is because after a STACK_UNWIND(..), we cannot expect the frame->local to be allocated still. Fix by using the other available reference to local->dict. Ref: https://savannah.nongnu.org/bugs/?26058 Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Print log message when AFR receives CHILD_UP/DOWN notificationVikas Gorur2009-04-021-0/+6
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* cluster/stripe to propogate ESTALE to parent.Basavanagowda Kanur2009-04-021-2/+4
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* cluster/unify propogates ESTALE to parent translator, if any subvolume ↵Basavanagowda Kanur2009-04-021-4/+30
| | | | | | returns ESTALE during revalidate. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* cluster/replicate should propogate the ESTALE error to parent, when at least ↵Basavanagowda Kanur2009-04-021-4/+14
| | | | | | one subvolume returns ESTALE. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* cluster/{dht,nufa} propogate ESTALE (when at least one subvolume returns ↵Basavanagowda Kanur2009-04-021-1/+10
| | | | | | ESTALE for revalidate) to parent translator. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* cluster/{nufa,dht} fail revalidates with ESTALE, in case a stale layout is ↵Basavanagowda Kanur2009-04-022-4/+4
| | | | | | found in inode->ctx. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Enhancements to distribute selfhealAnand V. Avati2009-03-263-51/+117
| | | | | | | | | | - create missing directories instead of creating linkfiles when entry missing on hashed subvol - detect cases where there are dirs and linkfiles for a name and make them all dirs Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Fixed typo in warning string in afr.cVikas Gorur2009-03-261-1/+1
| | | | | | Fixed typo. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Made self heal logic more precise.Vikas Gorur2009-03-241-22/+233
| | | | | | | | | Discard earlier patch sent for the same error. This patch fixes it more comprehensively. This solves the spurious split-brain seen by many users. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* dht memory leak fixRaghavendra G2009-03-241-1/+1
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* fixes issue of hashing to wrong subvolumes in case when a subvolume is downAmar Tumballi2009-03-211-2/+2
| | | | | | | When a hashed subvolume is down, variable 'subvol' was NULL, but was sent to itransform. This patch solves this, and readdir is sent to proper subvolume now. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* dht_layout_dir_cmp - if xattr is missing, it is an error only if cached ↵Anand V. Avati2009-03-191-11/+18
| | | | layout has entry for that subvolume.
* Moving few translators which are not well tested, are in beta stage to ↵Amar Tumballi2009-03-182-2/+2
| | | | | | | | | | | | | 'testing/' directory. This way, users will be aware which are in 'beta' stage, and we can keep on adding new translators (if any) seemlessly to stable codebase and once tested can move them to proper places. To use these translators, everyone will have to prefix 'testing/' to existing type of translator (in volumefile) Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* implement forget for cluster/unifyBasavanagowda Kanur2009-03-131-0/+18
| | | | | | inode_ctx_put() would set a list allocated on heap and would not be free()ed anywhere. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* unify revalidate should propogate the error from any of the subvolume upto ↵Basavanagowda Kanur2009-03-131-0/+7
| | | | | | | | the parent, so that parent sends a fresh lookup. unify revalidate fails if one of the subvolume returns error. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Add extra 'volume' parameter to inodelk/entrylk callsVikas Gorur2009-03-1210-48/+70
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* dht_readdir_cbk - retry on same subvol if no entries match the hashAnand V. Avati2009-03-091-5/+15
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* check for fd ctx set in changelog_needed_post_op for flush() in afrVikas Gorur2009-02-272-95/+49
| | | | | | | Earlier the check was in afr_flush(), which caused race conditions with writev() Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Skip self-heal when subvolumes are downAnand V. Avati2009-02-271-17/+0
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* fixing warnings in previous patch (typecasting pointer to long)Anand V. Avati2009-02-271-1/+1
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* reverting nested locks in posix-locks for inodelkVikas Gorur2009-02-271-0/+2
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* moved dht_hashfn_tea() to libglusterfs/hashfn.c as gf_dm_hashfn() (dm - ↵Basavanagowda Kanur2009-02-273-148/+5
| | | | | | | | davies-meyer). moved dht_hashfn_tea() to libglusterfs/src/hashfn.c as gf_dm_hashfn(). Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* updated copyright header to extend copyright upto 2009Basavanagowda Kanur2009-02-2639-39/+39
| | | | | | updated copyright header to include 2009. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Layout is sorted on volume names before forming the layout ranges. But when ↵krishna2009-02-263-3/+41
| | | | | | anomalies are to be detected layout is sorted based on "start" of the range (done in the selfheal during lookup). Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* protect fd_ctx get/set in afr_transaction and afr.c with locksVikas Gorur2009-02-262-16/+31
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Unset fd_ctx in afr_flush if it is setVikas Gorur2009-02-261-0/+2
| | | | | | | | | If fd_ctx is set, it means pending array needs to be decremented. However, flush might be called many times and it used to lead to multiple decrements. Fix is to unset fd_ctx on the first flush received Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* DHT clean up. Lot of selfheal code is not applicable to newly created ↵Krishna Srinivas2009-02-254-12/+33
| | | | | | | | | directory. Newly created directory will use only relavant part of DHT selfheal code - only for xattr application. DHT clean up. Lot of selfheal code is not applicable to newly created directory. Newly created directory will use only relavant part of DHT selfheal code - only for xattr application. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* DHT selfheal fix during lookup - create missing directories.Krishna Srinivas2009-02-251-0/+14
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* DHT TEA hashfn bugfixAnand V. Avati2009-02-231-5/+0
| | | | Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* cluster/ha to handle EBADFD for fd based operations as transport disconnected.Basavanagowda Kanur2009-02-191-1/+5
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Added all filesVikas Gorur2009-02-1852-0/+36511
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