Re: MDS stuck in 'rejoin' after network fragmentation caused OSD flapping

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On Wed, Aug 15, 2018 at 9:40 PM, Yan, Zheng <ukernel@xxxxxxxxx> wrote:
> How many client reconnected when mds restarts?  The issue is likely
> because reconnected clients held two many inodes, mds was opening
> these inodes in rejoin state.  Try  starting mds with option
> mds_wipe_sessions = true. The option makes mds ignore old clients
> during recovery.  You need to unset the option and  remount clients
> after mds become 'active'


Thank you for the suggestion! I set that in the global section of
ceph.conf on the node where I am starting ceph-mds. After setting it
and starting ceph-mds, I'm not seeing markedly different behavior.
After flying through replay and then flying through a bunch of the
messages posted earlier, it begins to eat up memory again and slows
down, still outputting the log messages as in the original post.
Looking in the ceph-mds...log, I'm not seeing any reference to 'wipe',
so I'm not sure if it is being honored. Am I putting that in the right
place?

jonathan
-- 
Jonathan Woytek
http://www.dryrose.com
KB3HOZ
PGP:  462C 5F50 144D 6B09 3B65  FCE8 C1DC DEC4 E8B6 AABC
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