Hi, A few months ago I sent a message to that list about a problem with a Ceph + Dovecot setup. Bug disappeared and I didn't answer to the thread. Now the bug has come again (Luminous up-to-date cluster + Dovecot up-to-date + Debian Stretch up-to-date). I know how to reproduce it, but it seems very related to my user's Dovecot data (few GB) and is related to file locking system (bug occurs when I set locking method to "fcntl" or "flock" in Dovecot, but not with "dotlock". It ends to a unresponsive MDS (100% CPU hang, switching to another MDS but always staying at 100% CPU usage). I can't even use the admin socket when MDS is hanged. I would like to know *exactly* which information do you need to investigate that bug ? (which commands, when, how to report large log files...) Thank you. Florent _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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