OSDs wrongly marked down

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Hi.

I'm having problem with the OSD en  my cluster.


Randomly some OSD get  wrongly marked down. I set my "mon osd min down reporters " to OSD +1, but i still get this problem.

Any tips or ideas to do the troubleshooting? I'm using Ceph 0.94.5 on Centos 7.

The logs shows this:

2017-12-19 16:59:26.357707 7fa9177d3700  0 -- 172.17.4.2:6830/4775054 >> 172.17.4.3:6800/2009784 pipe(0x7fa8a0907000 sd=43 :45955 s=1 pgs=1089 cs=1 l=0 c=0x7fa8a0965f00).connect got RESETSESSION
2017-12-19 16:59:26.360240 7fa8e5652700  0 -- 172.17.4.2:6830/4775054 >> 172.17.4.1:6808/6007742 pipe(0x7fa9310e3000 sd=26 :53375 s=2 pgs=5272 cs=1 l=0 c=0x7fa931045680).fault, initiating reconnect

2017-12-19 16:59:25.716758 7fa8e74c1700  0 -- 172.17.4.2:6830/4775054 >> 172.17.4.1:6826/1007559 pipe(0x7fa907052000 sd=17 :45743 s=1 pgs=2105 cs=1 l=0 c=0x7fa8a051a180).connect got RESETSESSION
2017-12-19 16:59:25.716308 7fa9849ed700  0 -- 172.17.3.2:6802/3775054 submit_message osd_op_reply(392 rbd_data.129d2042eabc234.0000000000000605 [set-alloc-hint object_size 4194304 write_size 4194304,write 0~126976] v26497'18879046 uv18879046 _ondisk_ = 0) v6 remote, 172.17.1.3:0/5911141, failed lossy con, dropping message 0x7fa8830edb00
2017-12-19 16:59:25.718694 7fa9849ed700  0 -- 172.17.3.2:6802/3775054 submit_message osd_op_reply(10610054 rbd_data.6ccd3348ab9aac.000000000000011d [set-alloc-hint object_size 8388608 write_size 8388608,write 876544~4096] v26497'15075797 uv15075797 _ondisk_ = 0) v6 remote, 172.17.1.4:0/1028032, failed lossy con, dropping message 0x7fa87a911700


--
Sergio A. Morales
Ingeniero de Sistemas
LINETS CHILE - 56 2 2412 5858
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