Anyone running 0.61.1,
Watch out for high disk usage due to a file likely located at
/var/log/ceph/ceph-mon.<mon-name>.tdump. This file contains debugging
for monitor transactions. This debugging was added in the past week or
so to track down another anomaly. It is not necessary (or useful unless
you are debugging monitor transactions).
Depending on the load of your cluster, the tdump file may become large
quickly. I've seen it grow over 50GB/day.
IMHO, the default setting should be "false", but it was merged in prior
to 0.61.1 with a default of "true". If you are on 0.61.1, you can
confirm the settings with:
ceph --admin-daemon /var/run/ceph/ceph-mon.<mon-name>.asok config show |
grep mon_debug_dump
To disable it, add "mon debug dump transactions = false" to ceph.conf,
and restart your monitors. Alternatively, you can inject the argument or
add the cmdline flag.
dmick has an issue started at:
http://tracker.ceph.com/issues/5024
Thanks,
Mike
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