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authorSunil Mushran <sunil.mushran@oracle.com>2011-05-04 19:28:00 +0200
committerJoel Becker <jlbec@evilplan.org>2011-05-13 20:26:48 +0200
commit76d9fc2954d057b19bf5d7b854df2b621b00fdec (patch)
treeca6725a08b9ffd79030d0bb22ec4c162f341f40e /arch/arm/mach-omap2/mailbox.c
parentocfs2/dlm: Use negotiated o2dlm protocol version (diff)
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ocfs2/cluster: Increase the live threshold for global heartbeat
We have seen isolated cases (very few, I might add) of o2hb not detecting all live nodes on startup. One plausible reasoning for it is that other node had a hb io delay at the same time. The live threshold set at 2 (as low as it can be) could be increased to ameliorate the situation. But increasing the threshold directly affects mount time. Currently it takes around 5 secs to mount a volume in o2cb cluster with local heartbeat. Increasing the threshold will make mounts even slower. As the issue itself is rare, we have left things as they are for the local heartbeat mode. However we can improve the situation for global heartbeat mode as in that mode, we start the heartbeat much before the mount. This patch doubles the live threshold for the start of the first region in global heartbeat mode. Addresses internal Oracle bug#10635585. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Acked-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
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