When creating an image, I see the warnings in ceph.log, but what do they mean? I am new to ceph. Thanks. 2014-07-07 14:33:04.838406 mon.0 172.17.6.176:6789/0 31 : [INF] pgmap v2060: 192 pgs: 192 stale+active+clean; 1221 MB data, 66451 MB used, 228 GB / 308 GB avail 2014-07-07 14:34:39.635483 osd.11 172.17.6.176:6803/2185 1 : [WRN] 1 slow requests, 1 included below; oldest blocked for > 30.368749 secs 2014-07-07 14:34:39.635523 osd.11 172.17.6.176:6803/2185 2 : [WRN] slow request 30.368749 seconds old, received at 2014-07-07 14:34:09.266593: osd_op(client.5714.0:1 bar.rbd [stat] 2.9f0efccd e59) v4 currently waiting for pg to exist locally 2014-07-07 14:34:42.772700 mon.0 172.17.6.176:6789/0 32 : [INF] pgmap v2061: 192 pgs: 192 stale+active+clean; 1221 MB data, 66451 MB used, 228 GB / 308 GB avail 2014-07-07 14:35:04.878993 mon.0 172.17.6.176:6789/0 33 : [INF] pgmap v2062: 192 pgs: 192 stale+active+clean; 1221 MB data, 66451 MB used, 228 GB / 308 GB avail 2014-07-07 14:35:09.646435 osd.11 172.17.6.176:6803/2185 3 : [WRN] 1 slow requests, 1 included below; oldest blocked for > 60.379755 secs 2014-07-07 14:35:09.646477 osd.11 172.17.6.176:6803/2185 4 : [WRN] slow request 60.379755 seconds old, received at 2014-07-07 14:34:09.266593: osd_op(client.5714.0:1 bar.rbd [stat] 2.9f0efccd e59) v4 currently waiting for pg to exist locally 2014-07-07 14:36:09.669187 osd.11 172.17.6.176:6803/2185 5 : [WRN] 1 slow requests, 1 included below; oldest blocked for > 120.402502 secs 2014-07-07 14:36:09.669230 osd.11 172.17.6.176:6803/2185 6 : [WRN] slow request 120.402502 seconds old, received at 2014-07-07 14:34:09.266593: osd_op(client.5714.0:1 bar.rbd [stat] 2.9f0efccd e59) v4 currently waiting for pg to exist locally 2014-07-07 14:36:42.372209 mon.0 172.17.6.176:6789/0 34 : [INF] pgmap v2063: 192 pgs: 192 stale+active+clean; 1221 MB data, 66452 MB used, 228 GB / 308 GB avail