ceph mdss keep on crashing after update to 14.2.3

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Hi all,

I updated our ceph cluster to 14.2.3 yesterday, and today the mds are crashing one after another. I'm using two active mds.

I've made a tracker ticket, but I was wondering if someone else also has seen this issue yet?

   -27> 2019-09-19 15:42:00.196 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8887 lookup #0x100166004d4/WindowsPhone-MSVC-CXX.cmake 2019-09-19 15:42:00.203132 caller_uid=0, caller_gid=0{0,}) v4
   -26> 2019-09-19 15:42:00.196 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865372:5815 lookup #0x20005a6eb3a/selectable.cpython-37.pyc 2019-09-19 15:42:00.204970 caller_uid=0, caller_gid=0{0,}) v4
   -25> 2019-09-19 15:42:00.196 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8888 lookup #0x100166004d4/WindowsPhone.cmake 2019-09-19 15:42:00.206381 caller_uid=0, caller_gid=0{0,}) v4
   -24> 2019-09-19 15:42:00.206 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8889 lookup #0x100166004d4/WindowsStore-MSVC-C.cmake 2019-09-19 15:42:00.209703 caller_uid=0, caller_gid=0{0,}) v4
   -23> 2019-09-19 15:42:00.206 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8890 lookup #0x100166004d4/WindowsStore-MSVC-CXX.cmake 2019-09-19 15:42:00.213200 caller_uid=0, caller_gid=0{0,}) v4
   -22> 2019-09-19 15:42:00.216 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8891 lookup #0x100166004d4/WindowsStore.cmake 2019-09-19 15:42:00.216577 caller_uid=0, caller_gid=0{0,}) v4
   -21> 2019-09-19 15:42:00.216 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8892 lookup #0x100166004d4/Xenix.cmake 2019-09-19 15:42:00.220230 caller_uid=0, caller_gid=0{0,}) v4
   -20> 2019-09-19 15:42:00.216 7f0369aeb700  2 mds.1.cache Memory usage:  total 4603496, rss 4167920, heap 323836, baseline 323836, 501 / 1162471 inodes have caps, 506 caps, 0.00043528 caps per inode
   -19> 2019-09-19 15:42:00.216 7f03652e2700  5 mds.1.log _submit_thread 30520209420029~9062 : EUpdate scatter_writebehind [metablob 0x1000bd8ac7b, 2 dirs]
   -18> 2019-09-19 15:42:00.216 7f03652e2700  5 mds.1.log _submit_thread 30520209429111~10579 : EUpdate scatter_writebehind [metablob 0x1000bf26309, 9 dirs]
   -17> 2019-09-19 15:42:00.216 7f03652e2700  5 mds.1.log _submit_thread 30520209439710~2305 : EUpdate scatter_writebehind [metablob 0x1000bf2745b.001*, 2 dirs]
   -16> 2019-09-19 15:42:00.216 7f03652e2700  5 mds.1.log _submit_thread 30520209442035~1845 : EUpdate scatter_writebehind [metablob 0x1000c233753, 2 dirs]
   -15> 2019-09-19 15:42:00.216 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8893 lookup #0x100166004d4/eCos.cmake 2019-09-19 15:42:00.223360 caller_uid=0, caller_gid=0{0,}) v4
   -14> 2019-09-19 15:42:00.216 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865319:2381 lookup #0x1001172f39d/microsoft-cp1251 2019-09-19 15:42:00.224940 caller_uid=0, caller_gid=0{0,}) v4
   -13> 2019-09-19 15:42:00.226 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8894 lookup #0x100166004d4/gas.cmake 2019-09-19 15:42:00.226624 caller_uid=0, caller_gid=0{0,}) v4
   -12> 2019-09-19 15:42:00.226 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865319:2382 readdir #0x1001172f3d7 2019-09-19 15:42:00.228673 caller_uid=0, caller_gid=0{0,}) v4
   -11> 2019-09-19 15:42:00.226 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8895 lookup #0x100166004d4/kFreeBSD.cmake 2019-09-19 15:42:00.229668 caller_uid=0, caller_gid=0{0,}) v4
   -10> 2019-09-19 15:42:00.226 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8896 lookup #0x100166004d4/syllable.cmake 2019-09-19 15:42:00.232746 caller_uid=0, caller_gid=0{0,}) v4
    -9> 2019-09-19 15:42:00.236 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865333:8897 readdir #0x10016601379 2019-09-19 15:42:00.240672 caller_uid=0, caller_gid=0{0,}) v4
    -8> 2019-09-19 15:42:00.236 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865356:3604574 readdir #0x2000090d630 2019-09-19 15:42:00.241832 caller_uid=0, caller_gid=0{0,}) v4
    -7> 2019-09-19 15:42:00.266 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865356:3604575 readdir #0x2000090d631 2019-09-19 15:42:00.272158 caller_uid=0, caller_gid=0{0,}) v4
    -6> 2019-09-19 15:42:00.326 7f03652e2700  5 mds.1.log _submit_thread 30520209443900~3089 : EUpdate scatter_writebehind [metablob 0x20005af5c63, 3 dirs]
    -5> 2019-09-19 15:42:00.326 7f03652e2700  5 mds.1.log _submit_thread 30520209447009~10579 : EUpdate scatter_writebehind [metablob 0x1000bf26309, 9 dirs]
    -4> 2019-09-19 15:42:00.326 7f03652e2700  5 mds.1.log _submit_thread 30520209457608~2305 : EUpdate scatter_writebehind [metablob 0x1000bf2745b.001*, 2 dirs]
    -3> 2019-09-19 15:42:00.326 7f03652e2700  5 mds.1.log _submit_thread 30520209459933~1030 : EUpdate check_inode_max_size [metablob 0x20005af5c74, 1 dirs]
    -2> 2019-09-19 15:42:00.326 7f036c2f0700  4 mds.1.server handle_client_request client_request(client.37865372:5816 setattr size=1138 #0x20005a6eb67 2019-09-19 15:42:00.333015 caller_uid=0, caller_gid=0{0,}) v4
    -1> 2019-09-19 15:42:00.336 7f036c2f0700 -1 /home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/14.2.3/rpm/el7/BUILD/ceph-14.2.3/src/mds/MDCache.cc: In function 'CInode* MDCache::cow_inode(CInode*, snapid_t)' thread 7f036c2f0700 time 2019-09-19 15:42:00.333567
/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/14.2.3/rpm/el7/BUILD/ceph-14.2.3/src/mds/MDCache.cc: 1498: FAILED ceph_assert(!lock->get_num_wrlocks())

 ceph version 14.2.3 (0f776cf838a1ae3130b2b73dc26be9c95c6ccc39) nautilus (stable)
 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x14a) [0x7f0375773ac2]
 2: (ceph::__ceph_assertf_fail(char const*, char const*, int, char const*, char const*, ...)+0) [0x7f0375773c90]
 3: (()+0x1ee48d) [0x55a7e4ccf48d]
 4: (MDCache::journal_cow_dentry(MutationImpl*, EMetaBlob*, CDentry*, snapid_t, CInode**, CDentry::linkage_t*)+0x823) [0x55a7e4ccfcb3]
 5: (MDCache::journal_dirty_inode(MutationImpl*, EMetaBlob*, CInode*, snapid_t)+0xbc) [0x55a7e4cd042c]
 6: (Locker::_do_cap_update(CInode*, Capability*, int, snapid_t, boost::intrusive_ptr<MClientCaps const> const&, boost::intrusive_ptr<MClientCaps> const&, bool*)+0xfb6) [0x55a7e4d957e6]
 7: (Locker::handle_client_caps(boost::intrusive_ptr<MClientCaps const> const&)+0x2059) [0x55a7e4d9c8e9]
 8: (Locker::dispatch(boost::intrusive_ptr<Message const> const&)+0xe7) [0x55a7e4daaf97]
 9: (MDSRank::handle_deferrable_message(boost::intrusive_ptr<Message const> const&)+0x304) [0x55a7e4c089e4]
 10: (MDSRank::_dispatch(boost::intrusive_ptr<Message const> const&, bool)+0x6eb) [0x55a7e4c0b1bb]
 11: (MDSRankDispatcher::ms_dispatch(boost::intrusive_ptr<Message const> const&)+0x40) [0x55a7e4c0b8d0]
 12: (MDSDaemon::ms_dispatch2(boost::intrusive_ptr<Message> const&)+0xfc) [0x55a7e4bf82ac]
 13: (DispatchQueue::entry()+0x12a9) [0x7f0375968dd9]
 14: (DispatchQueue::DispatchThread::entry()+0xd) [0x7f0375a183dd]
 15: (()+0x7dd5) [0x7f0373642dd5]
 16: (clone()+0x6d) [0x7f03722f302d]

     0> 2019-09-19 15:42:00.336 7f036c2f0700 -1 *** Caught signal (Aborted) **
 in thread 7f036c2f0700 thread_name:ms_dispatch

 ceph version 14.2.3 (0f776cf838a1ae3130b2b73dc26be9c95c6ccc39) nautilus (stable)
 1: (()+0xf5d0) [0x7f037364a5d0]
 2: (gsignal()+0x37) [0x7f037222b2c7]
 3: (abort()+0x148) [0x7f037222c9b8]
 4: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x199) [0x7f0375773b11]
 5: (ceph::__ceph_assertf_fail(char const*, char const*, int, char const*, char const*, ...)+0) [0x7f0375773c90]
 6: (()+0x1ee48d) [0x55a7e4ccf48d]
 7: (MDCache::journal_cow_dentry(MutationImpl*, EMetaBlob*, CDentry*, snapid_t, CInode**, CDentry::linkage_t*)+0x823) [0x55a7e4ccfcb3]
 8: (MDCache::journal_dirty_inode(MutationImpl*, EMetaBlob*, CInode*, snapid_t)+0xbc) [0x55a7e4cd042c]
 9: (Locker::_do_cap_update(CInode*, Capability*, int, snapid_t, boost::intrusive_ptr<MClientCaps const> const&, boost::intrusive_ptr<MClientCaps> const&, bool*)+0xfb6) [0x55a7e4d957e6]
 10: (Locker::handle_client_caps(boost::intrusive_ptr<MClientCaps const> const&)+0x2059) [0x55a7e4d9c8e9]
 11: (Locker::dispatch(boost::intrusive_ptr<Message const> const&)+0xe7) [0x55a7e4daaf97]
 12: (MDSRank::handle_deferrable_message(boost::intrusive_ptr<Message const> const&)+0x304) [0x55a7e4c089e4]
 13: (MDSRank::_dispatch(boost::intrusive_ptr<Message const> const&, bool)+0x6eb) [0x55a7e4c0b1bb]
 14: (MDSRankDispatcher::ms_dispatch(boost::intrusive_ptr<Message const> const&)+0x40) [0x55a7e4c0b8d0]
 15: (MDSDaemon::ms_dispatch2(boost::intrusive_ptr<Message> const&)+0xfc) [0x55a7e4bf82ac]
 16: (DispatchQueue::entry()+0x12a9) [0x7f0375968dd9]
 17: (DispatchQueue::DispatchThread::entry()+0xd) [0x7f0375a183dd]
 18: (()+0x7dd5) [0x7f0373642dd5]
 19: (clone()+0x6d) [0x7f03722f302d]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.


Thanks!

K

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