Hello list,
there are two config options of mon/osd interaction that I don't fully
understand. Maybe one of you could clarify it for me.
mon osd report timeout
- The grace period in seconds before declaring unresponsive Ceph OSD
Daemons down. Default 900
mon osd down out interval
- The number of seconds Ceph waits before marking a Ceph OSD Daemon
down and out if it doesn’t respond. Default 600
I've seen the mon_osd_down_out_interval beeing hit plenty of times, If
I manually take down an OSD it will be marked out after 10 minutes.
But when exactly will the mon_osd_report_timeout kick in? Does this
mean that if for some reason one OSD is unresponsive the MON will mark
it down after 15 minutes, then wait another 10 minutes until it is
marked out so the recovery can start?
I'd appreciate any insight!
Regards,
Eugen
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