diff options
| author | Pranith Kumar K <pkarampu@redhat.com> | 2017-11-17 07:20:21 +0530 |
|---|---|---|
| committer | Amar Tumballi <amarts@redhat.com> | 2017-11-22 07:47:49 +0000 |
| commit | 4ad64ffe8664cc0b964586af6efcf53cc619b68a (patch) | |
| tree | 37f1bcb17436e473d2e3dd9596098873d92b66bc /xlators/cluster | |
| parent | 3ad68df725ac32f83b5ea7c0976e2327e7037c8c (diff) | |
ec: Use tiebreaker_inodelk where necessary
When there are big directories or files that need to be healed,
other shds are stuck on getting lock on self-heal domain for these
directories/files. If there is a tie-breaker logic, other shds
can heal some other files/directories while 1 of the shds is healing
the big file/directory.
Before this patch:
96.67 4890.64 us 12.89 us 646115887.30us 340869 INODELK
After this patch:
40.76 42.35 us 15.09 us 6546.50us 438478 INODELK
Fixes gluster/glusterfs#354
Change-Id: Ia995b5576b44f770c064090705c78459e543cc64
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Diffstat (limited to 'xlators/cluster')
| -rw-r--r-- | xlators/cluster/ec/src/ec-heal.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/xlators/cluster/ec/src/ec-heal.c b/xlators/cluster/ec/src/ec-heal.c index 79159dc943d..8d62b01ac8a 100644 --- a/xlators/cluster/ec/src/ec-heal.c +++ b/xlators/cluster/ec/src/ec-heal.c @@ -1559,9 +1559,9 @@ ec_heal_entry (call_frame_t *frame, ec_t *ec, inode_t *inode, sprintf (selfheal_domain, "%s:self-heal", ec->xl->name); ec_mask_to_char_array (ec->xl_up, up_subvols, ec->nodes); /*If other processes are already doing the heal, don't block*/ - ret = cluster_inodelk (ec->xl_list, up_subvols, ec->nodes, replies, - locked_on, frame, ec->xl, selfheal_domain, inode, - 0, 0); + ret = cluster_tiebreaker_inodelk (ec->xl_list, up_subvols, ec->nodes, + replies, locked_on, frame, ec->xl, + selfheal_domain, inode, 0, 0); { if (ret <= ec->fragments) { gf_msg_debug (ec->xl->name, 0, "%s: Skipping heal " @@ -2391,9 +2391,10 @@ ec_heal_data (call_frame_t *frame, ec_t *ec, gf_boolean_t block, inode_t *inode, locked_on, frame, ec->xl, selfheal_domain, inode, 0, 0); } else { - ret = cluster_tryinodelk (ec->xl_list, output, ec->nodes, - replies, locked_on, frame, ec->xl, - selfheal_domain, inode, 0, 0); + ret = cluster_tiebreaker_inodelk (ec->xl_list, output, + ec->nodes, replies, locked_on, + frame, ec->xl, + selfheal_domain, inode, 0, 0); } { if (ret <= ec->fragments) { @@ -2444,8 +2445,10 @@ ec_heal_do (xlator_t *this, void *data, loc_t *loc, int32_t partial) /* If it is heal request from getxattr, complete the heal and then * unwind, if it is ec_heal with NULL as frame then no need to block - * the heal as the caller doesn't care about its completion*/ - if (fop->req_frame) + * the heal as the caller doesn't care about its completion. In case + * of heald whichever gets tiebreaking inodelk will take care of the + * heal, so no need to block*/ + if (fop->req_frame && !ec->shd.iamshd) blocking = _gf_true; frame = create_frame (this, this->ctx->pool); |