From 4a5d8f65b9b04385dcae8b16a650f4e8ed357f8b Mon Sep 17 00:00:00 2001 From: Ravishankar N Date: Tue, 22 Mar 2016 14:26:32 +0530 Subject: afr: Add throttled background client-side heals Backport of: http://review.gluster.org/13207 If a heal is needed after inode refresh (lookup, read_txn), launch it in the background instead of blocking the fop (that triggered refresh) until the heal happens. afr_replies_interpret() is modified such that the heal is launched only if atleast one sink brick is up. Max. no of heals that can happen in parallel is configurable via the 'background-self-heal-count' volume option. Any number greater than that is put in a wait queue whose length is configurable via 'heal-wait-queue-leng' volume option. If the wait queue is also full, further heals will be ignored. Default values: background-self-heal-count=8, heal-wait-queue-leng=128 Change-Id: I9a134b2c29d66b70b7b1278811bd504963aabacc BUG: 1313312 Signed-off-by: Ravishankar N Reviewed-on: http://review.gluster.org/13564 Smoke: Gluster Build System NetBSD-regression: NetBSD Build System CentOS-regression: Gluster Build System Reviewed-by: Pranith Kumar Karampuri --- xlators/mgmt/glusterd/src/glusterd-volume-set.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'xlators/mgmt/glusterd/src') diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-set.c b/xlators/mgmt/glusterd/src/glusterd-volume-set.c index 04153cd5130..4e8fac31f33 100644 --- a/xlators/mgmt/glusterd/src/glusterd-volume-set.c +++ b/xlators/mgmt/glusterd/src/glusterd-volume-set.c @@ -1129,6 +1129,14 @@ struct volopt_map_entry glusterd_volopt_map[] = { .op_version = GD_OP_VERSION_3_7_0, .flags = OPT_FLAG_CLIENT_OPT }, + { .key = "cluster.heal-wait-queue-length", + .voltype = "cluster/replicate", + .type = DOC, + .op_version = GD_OP_VERSION_3_7_10, + .flags = OPT_FLAG_CLIENT_OPT + }, + + /* stripe xlator options */ { .key = "cluster.stripe-block-size", .voltype = "cluster/stripe", .option = "block-size", -- cgit