Ceph » CephFS

Env: ceph 14.2.1 3 mds
I enabled module ceph crash so paste the meta here

meta:

{
    "crash_id": "2019-05-24_02:32:24.219047Z_369aac03-1839-40eb-a2e9-35834febfa04",
    "timestamp": "2019-05-24 02:32:24.219047Z",
    "process_name": "ceph-mds",
    "entity_name": "mds.rndcl118",
    "ceph_version": "14.2.1",
    "utsname_hostname": "rndcl118",
    "utsname_sysname": "Linux",
    "utsname_release": "4.15.0-34-generic",
    "utsname_version": "#37~16.04.1-Ubuntu SMP Tue Aug 28 10:44:06 UTC 2018",
    "utsname_machine": "x86_64",
    "os_name": "Ubuntu",
    "os_id": "ubuntu",
    "os_version_id": "16.04",
    "os_version": "16.04.4 LTS (Xenial Xerus)",
    "backtrace": [
        "(()+0x11390) [0x7f79746d9390]",
        "(gsignal()+0x38) [0x7f7973e26428]",
        "(abort()+0x16a) [0x7f7973e2802a]",
        "(__gnu_cxx::__verbose_terminate_handler()+0x135) [0x7f79754069a5]",
        "(__cxxabiv1::__terminate(void (*)())+0x6) [0x7f79753fa986]",
        "(()+0x8a49d1) [0x7f79753fa9d1]",
        "(()+0x8b0be4) [0x7f7975406be4]",
        "(Capability::Import::decode(ceph::buffer::v14_2_0::list::iterator_impl<true>&)+0x2d5) [0x7db6b5]",
        "(Server::_commit_slave_rename(boost::intrusive_ptr<MDRequestImpl>&, int, CDentry*, CDentry*, CDentry*)+0x7c3) [0x571923]",
        "(MDSContext::complete(int)+0x73) [0x792133]",
        "(MDCache::request_finish(boost::intrusive_ptr<MDRequestImpl>&)+0x1c3) [0x5e1fa3]",
        "(Server::dispatch_slave_request(boost::intrusive_ptr<MDRequestImpl>&)+0xd5) [0x581725]",
        "(Server::handle_slave_request(boost::intrusive_ptr<MMDSSlaveRequest const> const&)+0x9f1) [0x5844f1]",
        "(Server::dispatch(boost::intrusive_ptr<Message const> const&)+0x82) [0x584dc2]",
        "(MDSRank::handle_deferrable_message(boost::intrusive_ptr<Message const> const&)+0x73c) [0x4eebdc]",
        "(MDSRank::_dispatch(boost::intrusive_ptr<Message const> const&, bool)+0x6fb) [0x4f150b]",
        "(MDSRankDispatcher::ms_dispatch(boost::intrusive_ptr<Message const> const&)+0xaf) [0x4f1d4f]",
        "(MDSDaemon::ms_dispatch2(boost::intrusive_ptr<Message> const&)+0x104) [0x4de5c4]",
        "(DispatchQueue::entry()+0x1219) [0x7f79750541f9]",
        "(DispatchQueue::DispatchThread::entry()+0xd) [0x7f7975103fad]",
        "(()+0x76ba) [0x7f79746cf6ba]",
        "(clone()+0x6d) [0x7f7973ef841d]" 
    ]
}

log is zipped and uploaded