On Tue, 13 Aug 2013, Jeppesen, Nelson wrote: > Interesting, > > So if I change ' auth service ticket ttl' to 172,800, in theory I could go > without a monitor for 48 hours?
If there are no up/down events, no new clients need to start, no osd recovery going on, then I *think* so. I may be forgetting something. sage > > > -----Original Message----- > From: Sage Weil [mailto:s...@inktank.com] > Sent: Monday, August 12, 2013 9:50 PM > To: Jeppesen, Nelson > Cc: ceph-users@lists.ceph.com > Subject: Re: [ceph-users] Why is my mon store.db is 220GB? > > On Mon, 12 Aug 2013, Jeppesen, Nelson wrote: > > Joao, > > > > (log file uploaded to http://pastebin.com/Ufrxn6fZ) > > > > I had some good luck and some bad luck. I copied the store.db to a new > > monitor, injected a modified monmap and started it up (This is all on the > > same host.) Very quickly it reached quorum (as far as I can tell) but > > didn't respond. Running 'ceph -w' just hung, no timeouts or errors. Same > > thing when restarting an OSD. > > > > The last lines of the log file '...ms_verify_authorizer..' are from 'ceph > > -w' attempts. > > > > I restarted everything again and it sat there synchronizing. IO stat > > reported about 100MB/s, but just reads. I let it sit there for 7 min but > > nothing happened. > > Can you do this again with --debug-mon 20 --debug-ms 1? It looks as though > the main dispatch thread is blocked (7f71a1aa5700 does nothing after winning > the election). It would also be helpful to gdb attach to the running > ceph-mon and capture the output from 'thread apply all bt'. > > > Side question, how long can a ceph cluster run without a monitor? I > > was able to upload files via rados gateway without issue even when the > > monitor was down. > > Quite a while, as long as no new processes need to authenticate, and no nodes > go up or down. Eventually the authentication keys are going to time out, > though (1 hour is the default). > > sage > > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
