Hi All Based v11.0.2 i did write-test and always met this bug as followings: -1> 2016-12-03 11:47:34.897412 7fa4207fd700 -1 rocksdb: submit_transaction error: NotFound: code = 1 Rocksdb transaction: Put( Prefix = M key = 0x000000000000079c'.0000000272.00000000000000075338' Value size = 182) Put( Prefix = M key = 0x000000000000079c'._epoch' Value size = 4) Put( Prefix = M key = 0x000000000000079c'._info' Value size = 855) Put( Prefix = O key = 0x7f8000000000000001600ab4'%!rbd_data.5f126b8b4567.000000000000233e!='0xfffffffffffffffeffffffffffffffff Value size = 526) Put( Prefix = L key = 0x0000000004be661a Value size = 4138) 0> 2016-12-03 11:47:34.899063 7fa4207fd700 -1 /root/ceph/src/os/bluestore/BlueStore.cc: In function 'void BlueStore::_kv_sync_thread()' thread 7fa4207fd700 time 2016-12-03 11:47:34.897441 /root/ceph/src/os/bluestore/BlueStore.cc: 6484: FAILED assert(r == 0) ceph version v11.0.2 (697fe64f9f106252c49a2c4fe4d79aea29363be7) 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x8b) [0x5651411b675b] 2: (BlueStore::_kv_sync_thread()+0x1be4) [0x565140f5e404] 3: (BlueStore::KVSyncThread::entry()+0xd) [0x565140f6bc5d] 4: (()+0x8182) [0x7fa45c1e8182] 5: (clone()+0x6d) [0x7fa45ab5547d] NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this. But test the same case on master code, i don't see this bug. I need help. Thanks very much Jianpeng. -- 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