hi Dietmar, were the osds really down, or was this just the perception of the hung client?
playing around with mds_session_blacklist_on_timeout, mds_session_blacklist_on_evict to allow the clients to actually reconnect and mds_cap_revoke_eviction_timeout to forcibly evict hung client might be worth looking into. > $ uname -a > Linux apollo-08.local 3.10.0-1062.12.1.el7.x86_64 #1 SMP Tue > Feb 4 > 23:02:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux iirc (and for debian), client reconnects only work properly in kernel versions ≥ 3.19. hth, t.
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