Hi Sage, Unfortunately I purged the cluster yesterday and restarted the backfill tool. I did not see the osd crash yet on the cluster. I am monitoring the OSDs and will update you once I see the crash. With the new backfill run I have reduced the rps by half, not sure if this is the reason for not seeing the crash yet. Regards Srikanth On Mon, Jun 1, 2015 at 10:06 PM, Sage Weil <sage@xxxxxxxxxxxx> wrote: > I pushed a commit to wip-newstore-debuglist.. can you reproduce the crash > with that branch with 'debug newstore = 20' and send us the log? > (You can just do 'ceph-post-file <filename>'.) > > Thanks! > sage > > On Mon, 1 Jun 2015, Srikanth Madugundi wrote: > >> Hi Sage, >> >> The assertion failed at line 1639, here is the log message >> >> >> 2015-05-30 23:17:55.141388 7f0891be0700 -1 os/newstore/NewStore.cc: In >> function 'virtual int NewStore::collection_list_partial(coll_t, >> ghobject_t, int, int, snapid_t, std::vector<ghobject_t>*, >> ghobject_t*)' thread 7f0891be0700 time 2015-05-30 23:17:55.137174 >> >> os/newstore/NewStore.cc: 1639: FAILED assert(k >= start_key && k < end_key) >> >> >> Just before the crash the here are the debug statements printed by the >> method (collection_list_partial) >> >> 2015-05-30 22:49:23.607232 7f1681934700 15 >> newstore(/var/lib/ceph/osd/ceph-7) collection_list_partial 75.0_head >> start -1/0//0/0 min/max 1024/1024 snap head >> 2015-05-30 22:49:23.607251 7f1681934700 20 >> newstore(/var/lib/ceph/osd/ceph-7) collection_list_partial range >> --.7fffffffffffffb4.00000000. to --.7fffffffffffffb4.08000000. and >> --.800000000000004b.00000000. to --.800000000000004b.08000000. start >> -1/0//0/0 >> >> >> Regards >> Srikanth >> >> On Mon, Jun 1, 2015 at 8:54 PM, Sage Weil <sage@xxxxxxxxxxxx> wrote: >> > On Mon, 1 Jun 2015, Srikanth Madugundi wrote: >> >> Hi Sage and all, >> >> >> >> I build ceph code from wip-newstore on RHEL7 and running performance >> >> tests to compare with filestore. After few hours of running the tests >> >> the osd daemons started to crash. Here is the stack trace, the osd >> >> crashes immediately after the restart. So I could not get the osd up >> >> and running. >> >> >> >> ceph version b8e22893f44979613738dfcdd40dada2b513118 >> >> (eb8e22893f44979613738dfcdd40dada2b513118) >> >> 1: /usr/bin/ceph-osd() [0xb84652] >> >> 2: (()+0xf130) [0x7f915f84f130] >> >> 3: (gsignal()+0x39) [0x7f915e2695c9] >> >> 4: (abort()+0x148) [0x7f915e26acd8] >> >> 5: (__gnu_cxx::__verbose_terminate_handler()+0x165) [0x7f915eb6d9d5] >> >> 6: (()+0x5e946) [0x7f915eb6b946] >> >> 7: (()+0x5e973) [0x7f915eb6b973] >> >> 8: (()+0x5eb9f) [0x7f915eb6bb9f] >> >> 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char >> >> const*)+0x27a) [0xc84c5a] >> >> 10: (NewStore::collection_list_partial(coll_t, ghobject_t, int, int, >> >> snapid_t, std::vector<ghobject_t, std::allocator<ghobject_t> >*, >> >> ghobject_t*)+0x13c9) [0xa08639] >> >> 11: (PGBackend::objects_list_partial(hobject_t const&, int, int, >> >> snapid_t, std::vector<hobject_t, std::allocator<hobject_t> >*, >> >> hobject_t*)+0x352) [0x918a02] >> >> 12: (ReplicatedPG::do_pg_op(std::tr1::shared_ptr<OpRequest>)+0x1066) [0x8aa906] >> >> 13: (ReplicatedPG::do_op(std::tr1::shared_ptr<OpRequest>&)+0x1eb) [0x8cd06b] >> >> 14: (ReplicatedPG::do_request(std::tr1::shared_ptr<OpRequest>&, >> >> ThreadPool::TPHandle&)+0x68a) [0x85dbea] >> >> 15: (OSD::dequeue_op(boost::intrusive_ptr<PG>, >> >> std::tr1::shared_ptr<OpRequest>, ThreadPool::TPHandle&)+0x3ed) >> >> [0x6c3f5d] >> >> 16: (OSD::ShardedOpWQ::_process(unsigned int, >> >> ceph::heartbeat_handle_d*)+0x2e9) [0x6c4449] >> >> 17: (ShardedThreadPool::shardedthreadpool_worker(unsigned int)+0x86f) [0xc746bf] >> >> 18: (ShardedThreadPool::WorkThreadSharded::entry()+0x10) [0xc767f0] >> >> 19: (()+0x7df3) [0x7f915f847df3] >> >> 20: (clone()+0x6d) [0x7f915e32a01d] >> >> NOTE: a copy of the executable, or `objdump -rdS <executable>` is >> >> needed to interpret this. >> >> >> >> Please let me know the cause of this crash, when this crash happens I >> >> noticed that two osds on separate machines are down. I can bring one >> >> osd up but restarting the other osd causes both OSDs to crash. My >> >> understanding is the crash seems to happen when two OSDs try to >> >> communicate and replicate a particular PG. >> > >> > Can you include the log lines that preceed the dump above? In particular, >> > there should be a line that tells you what assertion failed in what >> > function and at what line number. I haven't seen this crash so I'm not >> > sure offhand what it is. >> > >> > Thanks! >> > sage >> -- >> 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 >> >> -- 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
