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nautilus: osd/OSD: auto mark heartbeat sessions as stale and tear them down #29391

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merged 1 commit into from Aug 2, 2019

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osd/OSD: auto mark heartbeat sessions as stale and tear them down
The primary benefit is that the OSD doesn't need to keep a flood of
blocked heartbeat messages around in memory.
This prevents OSDs from accumulating heartbeat messages due to a
broken switch and then exhausting the whole node's memory:

Jun 11 04:19:26 host-192-168-9-12 kernel: [409881.137077] Out of memory:
Kill process 1471476 (ceph-osd) score 47 or sacrifice child
Jun 11 04:19:26 host-192-168-9-12 kernel: [409881.146054] Killed process
1471476 (ceph-osd) total-vm:4822548kB, anon-rss:3097860kB,
file-rss:2556kB, shmem-rss:0kB

Fixes: http://tracker.ceph.com/issues/40586
Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
(cherry picked from commit 6cc90f3)
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commented Jul 31, 2019

@yuriw yuriw merged commit 8ba30d2 into ceph:nautilus Aug 2, 2019

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