diff options
Diffstat (limited to 'xlators/cluster/ec/src/ec.c')
| -rw-r--r-- | xlators/cluster/ec/src/ec.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/xlators/cluster/ec/src/ec.c b/xlators/cluster/ec/src/ec.c index e467fea28b8..01f1473f96d 100644 --- a/xlators/cluster/ec/src/ec.c +++ b/xlators/cluster/ec/src/ec.c @@ -301,6 +301,8 @@ reconfigure (xlator_t *this, dict_t *options) ret = -1; } + GF_OPTION_RECONF ("optimistic-change-log", ec->optimistic_changelog, + options, bool, failed); failed: return ret; } @@ -611,6 +613,7 @@ init (xlator_t *this) this->private = ec; ec->xl = this; + ec->optimistic_changelog = _gf_true; LOCK_INIT(&ec->lock); INIT_LIST_HEAD(&ec->pending_fops); @@ -669,6 +672,7 @@ init (xlator_t *this) GF_OPTION_INIT ("shd-max-threads", ec->shd.max_threads, uint32, failed); GF_OPTION_INIT ("shd-wait-qlength", ec->shd.wait_qlength, uint32, failed); + GF_OPTION_INIT ("optimistic-change-log", ec->optimistic_changelog, bool, failed); this->itable = inode_table_new (EC_SHD_INODE_LRU_LIMIT, this); if (!this->itable) @@ -1463,5 +1467,21 @@ struct volume_options options[] = .description = "force the cpu extensions to be used to accelerate the " "galois field computations." }, - { } + { .key = {"optimistic-change-log"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "on", + .description = "Set/Unset dirty flag for every update fop at the start" + "of the fop. If OFF, this option impacts performance of" + "entry operations or metadata operations as it will" + "set dirty flag at the start and unset it at the end of" + "ALL update fop. If ON and all the bricks are good," + "dirty flag will be set at the start only for file fops" + "For metadata and entry fops dirty flag will not be set" + "at the start, if all the bricks are good. This does" + "not impact performance for metadata operations and" + "entry operation but has a very small window to miss" + "marking entry as dirty in case it is required to be" + "healed" + }, + { .key = {NULL} } }; |