But still don't know what happens with ceph, so it can't respond and hang. It is not a good behavior, because such situation leads to unresponsible cluster in case of temporal network failure.
2012/1/18 Andrey Stepachev <[email protected]>: > Hi, > > I've test ceph against laggy network. (0ms-400ms delays). > At some moment i got many messages like: > 2012-01-18 16:06:49.184776 7ff134119700 -- 84.201.161.73:6801/25424 > send_message dropped message osd_op_reply(291 1000000101b.0000001e > [write 66734080~37 > 4784] ondisk = 0) v1 because of no pipe on con 0x315e640 > And ceph don't respond on ls on some of subdirs (via hadoop fs -ls or > kernel client) > My cluster runs with no debug at that moment, so I can't find what is going > on. > > After restart ceph writes to log > 2012-01-18 16:10:39.985509 7f217989d780 osd.1 155 pg[0.155( v 136'373 > (94'368,136'373]+backlog n=3 ec=1 les/c 150/145 146/151/58) [] r=0 > lpr=0 (info mismatch, log(94'368,0'0]+backlog) (log bound mismatch, > actual=[8'124,94'369]) lcod 0'0 mlcod 0'0 inactive] read_log got dup > 94'369 (last was 94'369, dropping that one) > > After such strange hangouts i found, that rm -rf on filesystem > (mounted via kernel), > fs shows, that 210Gb still in use. Looking at /data/osd.x i found many > objects inside. > So: > a) looks like some errors lead us to orphaned objects in rados > b) i can't find utility, which can check that orpaned data (and cleanup it) > > Question: how I can identify what objects are, and how I can clean up them. > > -- > Andrey. -- Andrey. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
