2019-09-26 15:54:44 0 [Note] InnoDB: Buffer pool(s) load completed at 190926 15:54:44 190926 15:59:48 [ERROR] mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. To report this bug, see https://mariadb.com/kb/en/reporting-bugs We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. Server version: 10.3.15-MariaDB-log key_buffer_size=65536 read_buffer_size=131072 max_used_connections=9 max_threads=153 thread_count=15 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 336412 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7f5618000a88 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 0x7f558398bd30 thread_stack 0x49000 /usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x5624a84de91e] /usr/sbin/mysqld(handle_fatal_signal+0x30f)[0x5624a7f7b53f] sigaction.c:0(__restore_rt)[0x7f56230645d0] /usr/sbin/mysqld(+0xd1acb7)[0x5624a8517cb7] /usr/sbin/mysqld(_Z17find_schema_tableP3THDPK25st_mysql_const_lex_stringPb+0x55)[0x5624a7e146b5] /usr/sbin/mysqld(_Z11open_tablesP3THDRK14DDL_options_stPP10TABLE_LISTPjPP19Sroutine_hash_entryjP19Prelocking_strategy+0x942)[0x5624a7d4b632] /usr/sbin/mysqld(_Z30open_normal_and_derived_tablesP3THDP10TABLE_LISTjj+0x67)[0x5624a7d4c217] /usr/sbin/mysqld(_Z18mysqld_list_fieldsP3THDP10TABLE_LISTPKc+0x35)[0x5624a7e04415] /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0x24ad)[0x5624a7daf04d] /usr/sbin/mysqld(_Z10do_commandP3THD+0x13e)[0x5624a7daf73e] /usr/sbin/mysqld(_Z24do_handle_one_connectionP7CONNECT+0x1aa)[0x5624a7e8079a] /usr/sbin/mysqld(handle_one_connection+0x3d)[0x5624a7e808bd] pthread_create.c:0(start_thread)[0x7f562305cdd5] /lib64/libc.so.6(clone+0x6d)[0x7f56213ffead] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0x7f561800f530): Connection ID (thread ID): 58 Status: NOT_KILLED Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. Writing a core file... Working directory at /qocp/001/mydata Resource Limits: Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 8388608 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 31120 31120 processes Max open files 65536 65536 files Max locked memory unlimited unlimited bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 31120 31120 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 Max realtime priority 0 0 Max realtime timeout unlimited unlimited us Core pattern: core 2019-09-26 15:59:49 0 [Note] InnoDB: Using Linux native AIO 2019-09-26 15:59:49 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2019-09-26 15:59:49 0 [Note] InnoDB: Uses event mutexes 2019-09-26 15:59:49 0 [Note] InnoDB: Compressed tables use zlib 1.2.7 2019-09-26 15:59:49 0 [Note] InnoDB: Number of pools: 1 2019-09-26 15:59:49 0 [Note] InnoDB: Using SSE2 crc32 instructions 2019-09-26 15:59:49 0 [Note] InnoDB: Initializing buffer pool, total size = 2G, instances = 8, chunk size = 128M 2019-09-26 15:59:49 0 [Note] InnoDB: Completed initialization of buffer pool 2019-09-26 15:59:49 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority(). 2019-09-26 15:59:49 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=151251928559 2019-09-26 15:59:49 0 [Note] InnoDB: 128 out of 128 rollback segments are active. 2019-09-26 15:59:49 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1" 2019-09-26 15:59:49 0 [Note] InnoDB: Creating shared tablespace for temporary tables 2019-09-26 15:59:49 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ... 2019-09-26 15:59:49 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB. 2019-09-26 15:59:49 0 [Note] InnoDB: Waiting for purge to start 2019-09-26 15:59:49 0 [Note] InnoDB: 10.3.15 started; log sequence number 151251928625; transaction id 156822732 2019-09-26 15:59:49 0 [Note] InnoDB: Loading buffer pool(s) from /qocp/001/mydata/ib_buffer_pool 2019-09-26 15:59:49 0 [Note] Plugin 'FEEDBACK' is disabled. 2019-09-26 15:59:49 0 [Note] Recovering after a crash using tc.log 2019-09-26 15:59:49 0 [Note] Starting crash recovery... 2019-09-26 15:59:49 0 [Note] Crash recovery finished. 2019-09-26 15:59:49 0 [Note] Server socket created on IP: '::'. 2019-09-26 15:59:49 0 [Note] Reading of all Master_info entries succeded 2019-09-26 15:59:49 0 [Note] Added new Master_info '' to hash table 2019-09-26 15:59:49 0 [Note] /usr/sbin/mysqld: ready for connections. Version: '10.3.15-MariaDB-log' socket: '/usr/local/dba/tmp/.mysql.QOCP.sock' port: 3306 MariaDB Server 2019-09-26 15:59:50 0 [Note] InnoDB: Buffer pool(s) load completed at 190926 15:59:50