The patch titled
Subject: ocfs2: o2hb: increase unsteady iterations
has been added to the -mm tree. Its filename is
o2hb-increase-unsteady-iterations.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/o2hb-increase-unsteady-iterations.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/o2hb-increase-unsteady-iterations.patch
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------------------------------------------------------
From: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Subject: ocfs2: o2hb: increase unsteady iterations
When run multiple xattr test of ocfs2-test on a three-nodes cluster, mount
failed sometimes with the following message.
o2hb: Unable to stabilize heartbeart on region D18B775E758D4D80837E8CF3D086AD4A (xvdb)
Stabilize heartbeat depends on the timing order to mount ocfs2 from
cluster nodes and how fast the tcp connections are established. So
increase unsteady interations to leave more time for it.
Signed-off-by: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/cluster/heartbeat.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN fs/ocfs2/cluster/heartbeat.c~o2hb-increase-unsteady-iterations fs/ocfs2/cluster/heartbeat.c
--- a/fs/ocfs2/cluster/heartbeat.c~o2hb-increase-unsteady-iterations
+++ a/fs/ocfs2/cluster/heartbeat.c
@@ -1780,8 +1780,8 @@ static ssize_t o2hb_region_dev_store(str
}
++live_threshold;
atomic_set(®->hr_steady_iterations, live_threshold);
- /* unsteady_iterations is double the steady_iterations */
- atomic_set(®->hr_unsteady_iterations, (live_threshold << 1));
+ /* unsteady_iterations is triple the steady_iterations */
+ atomic_set(®->hr_unsteady_iterations, (live_threshold * 3));
hb_task = kthread_run(o2hb_thread, reg, "o2hb-%s",
reg->hr_item.ci_name);
_
Patches currently in -mm which might be from junxiao.bi@xxxxxxxxxx are
o2hb-increase-unsteady-iterations.patch
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