On Tue, Jul 1, 2014 at 11:33 AM, Brian Lovett <brian.lovett at prosperent.com> wrote: > Brian Lovett <brian.lovett at ...> writes: > > > I restarted all of the osd's and noticed that ceph shows 2 osd's up even if > the servers are completely powered down: osdmap e95: 8 osds: 2 up, 8 in > > Why would that be? The OSDs report each other down much more quickly (~30s) than the monitor timeout (~15 minutes). They'd get marked down eventually. On Tue, Jul 1, 2014 at 11:43 AM, Brian Lovett <brian.lovett at prosperent.com> wrote: > Gregory Farnum <greg at ...> writes: > >> >> What's the output of "ceph osd map"? >> >> Your CRUSH map probably isn't trying to segregate properly, with 2 >> hosts and 4 OSDs each. >> Software Engineer #42 <at> http://inktank.com | http://ceph.com >> > Is this what you are looking for? > > ceph osd map rbd ceph > osdmap e104 pool 'rbd' (2) object 'ceph' -> pg 2.3482c180 (2.0) -> up ([3,5], > p3) acting ([3,5,0], p3) Whoops, I mean "ceph osd list", sorry! (That should output a textual representation of how they're arranged in the CRUSH map.) > > We're bringing on a 3rd host tomorrow with 4 more osd's. Would this correct > the issue? There's a good chance, but you're seeing a lot more degraded PGs than one normally does when it's just a mapping failure, so I'd like to see a few more details. :) -Greg
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