On 04/02/2013 01:16 PM, Jim Schutt wrote: > On 04/02/2013 12:28 PM, Joao Luis wrote: >> Right. I'll push a patch to bump that sort of output to 30 when I get home. > > Thanks - but FWIW, I don't think it's the root cause of my > issue -- more below.... OK, I see now that you're talking about the output from list_proposals(). Indeed, when I cause list_proposals() in propose_queued() to only be called at paxos debug 30, the stall in finish_queued_proposal() mostly goes away. Now, with 55392 PGs I'm seeing this: 2013-04-02 14:21:19.401820 7ffff328d700 10 mon.cs31@0(leader).paxosservice(pgmap) propose_pending 2013-04-02 14:21:19.535731 7ffff328d700 5 mon.cs31@0(leader).paxos(paxos active c 1..33) queue_proposal bl 19870402 bytes; ctx = 0x11ecff0 2013-04-02 14:21:19.535917 7ffff328d700 5 mon.cs31@0(leader).paxos(paxos preparing update c 1..33) propose_queued 34 19870402 bytes 2013-04-02 14:21:19.535925 7ffff328d700 10 mon.cs31@0(leader).paxos(paxos preparing update c 1..33) begin for 34 19870402 bytes 2013-04-02 14:21:19.754326 7ffff328d700 10 mon.cs31@0(leader).paxos(paxos updating c 1..33) commit 34 2013-04-02 14:21:19.975747 7ffff328d700 10 mon.cs31@0(leader).paxos(paxos active c 1..34) finish_queued_proposal finishing proposal 2013-04-02 14:21:19.975799 7ffff328d700 10 mon.cs31@0(leader).paxos(paxos active c 1..34) finish_queued_proposal finish it (proposal = 0x790c0c0) 2013-04-02 14:21:19.975802 7ffff328d700 10 mon.cs31@0(leader).paxos(paxos active c 1..34) finish_queued_proposal proposal took 0.439887 to finish 2013-04-02 14:21:19.975913 7ffff328d700 10 mon.cs31@0(leader).paxosservice(pgmap) _active >> >> If you're willing, try reducing the paxos debug level to 0 and let us know >> if those delays in the proposal go away. > > When I started debugging why I couldn't start new filesystems, several > days ago, I wasn't using any debugging. It took me until last Friday > to track the issue into paxos, which is when I turned on its debugging. > With that list_proposals() debug output issue out of the way, I'm still having trouble starting up a new filesystem -- still working to try to isolate the source of the issue.... Thanks -- Jim -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
