Dec 25 14:32:18 mysqld: 2019-12-25 14:32:18 3294865 [ERROR] [FATAL] InnoDB: Unknown error code 19: Required history data has been deleted Dec 25 14:32:18 mysqld: 191225 14:32:18 [ERROR] mysqld got signal 6 ; Dec 25 14:32:18 mysqld: This could be because you hit a bug. It is also possible that this binary Dec 25 14:32:18 mysqld: or one of the libraries it was linked against is corrupt, improperly built, Dec 25 14:32:18 mysqld: or misconfigured. This error can also be caused by malfunctioning hardware. Dec 25 14:32:18 mysqld: To report this bug, see https://mariadb.com/kb/en/reporting-bugs Dec 25 14:32:18 mysqld: We will try our best to scrape up some info that will hopefully help Dec 25 14:32:18 mysqld: diagnose the problem, but since we have already crashed, Dec 25 14:32:18 mysqld: something is definitely wrong and this may fail. Dec 25 14:32:18 mysqld: Server version: 10.3.21-MariaDB-log Dec 25 14:32:18 mysqld: key_buffer_size=134217728 Dec 25 14:32:18 mysqld: read_buffer_size=131072 Dec 25 14:32:18 mysqld: max_used_connections=73 Dec 25 14:32:18 mysqld: max_threads=202 Dec 25 14:32:18 mysqld: thread_count=89 Dec 25 14:32:18 mysqld: It is possible that mysqld could use up to Dec 25 14:32:18 mysqld: key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 575152 K bytes of memory Dec 25 14:32:18 mysqld: Hope that's ok; if not, decrease some variables in the equation. Dec 25 14:32:18 mysqld: Thread pointer: 0x7fa1640077c8 Dec 25 14:32:18 mysqld: Attempting backtrace. You can use the following information to find out Dec 25 14:32:18 mysqld: where mysqld died. If you see no messages after this, something went Dec 25 14:32:18 mysqld: terribly wrong... Dec 25 14:32:18 mysqld: stack_bottom = 0x7fa17d886d30 thread_stack 0x49000 Dec 25 14:32:18 mysqld: /usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x558806da8c0e] Dec 25 14:32:18 mysqld: /usr/sbin/mysqld(handle_fatal_signal+0x30f)[0x55880684840f] Dec 25 14:32:19 mysqld: /lib64/libpthread.so.0(+0xf5f0)[0x7fae25c905f0] Dec 25 14:32:19 mysqld: /lib64/libc.so.6(gsignal+0x37)[0x7fae23f61337] Dec 25 14:32:19 mysqld: /lib64/libc.so.6(abort+0x148)[0x7fae23f62a28] Dec 25 14:32:19 mysqld: /usr/sbin/mysqld(+0xa7ef23)[0x558806b31f23] Dec 25 14:32:20 mysqld: /usr/sbin/mysqld(+0x9f416c)[0x558806aa716c] Dec 25 14:32:20 mysqld: /usr/sbin/mysqld(+0xa10a64)[0x558806ac3a64] Dec 25 14:32:20 mysqld: /usr/sbin/mysqld(+0x93a420)[0x5588069ed420] Dec 25 14:32:20 mysqld: /usr/sbin/mysqld(_ZN7handler13ha_index_nextEPh+0x19f)[0x55880684e24f] Dec 25 14:32:21 mysqld: /usr/sbin/mysqld(_ZN7handler15read_range_nextEv+0x20)[0x5588068525c0] Dec 25 14:32:21 mysqld: /usr/sbin/mysqld(_ZN7handler21multi_range_read_nextEPPv+0xb2)[0x5588067720e2] Dec 25 14:32:21 mysqld: /usr/sbin/mysqld(_ZN23Mrr_simple_index_reader8get_nextEPPv+0x20)[0x558806772150] Dec 25 14:32:21 mysqld: /usr/sbin/mysqld(_ZN10DsMrr_impl10dsmrr_nextEPPv+0x42)[0x5588067733c2] Dec 25 14:32:21 mysqld: /usr/sbin/mysqld(_ZN18QUICK_RANGE_SELECT8get_nextEv+0x99)[0x558806956c09] Dec 25 14:32:22 mysqld: /usr/sbin/mysqld(+0x8bf669)[0x558806972669] Dec 25 14:32:22 mysqld: /usr/sbin/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x211)[0x55880669f501] Dec 25 14:32:22 mysqld: /usr/sbin/mysqld(_ZN4JOIN10exec_innerEv+0xa7b)[0x5588066c0f2b] Dec 25 14:32:22 mysqld: /usr/sbin/mysqld(_ZN4JOIN4execEv+0x33)[0x5588066c1143] Dec 25 14:32:23 mysqld: /usr/sbin/mysqld(_Z12mysql_selectP3THDP10TABLE_LISTjR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x11a)[0x5588066c129a] Dec 25 14:32:23 mysqld: /usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x1cc)[0x5588066c1dac] Dec 25 14:32:23 mysqld: /usr/sbin/mysqld(+0x4c2fa3)[0x558806575fa3] Dec 25 14:32:23 mysqld: /usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x3204)[0x5588066689c4] Dec 25 14:32:24 mysqld: /usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_statebb+0x22b)[0x55880666e44b] Dec 25 14:32:24 mysqld: /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0x1ca6)[0x558806671036] Dec 25 14:32:24 mysqld: /usr/sbin/mysqld(_Z10do_commandP3THD+0x13e)[0x558806671f7e] Dec 25 14:32:24 mysqld: /usr/sbin/mysqld(_Z24do_handle_one_connectionP7CONNECT+0x221)[0x558806746e91] Dec 25 14:32:24 mysqld: /usr/sbin/mysqld(handle_one_connection+0x3d)[0x558806746f5d] Dec 25 14:32:25 mysqld: /lib64/libpthread.so.0(+0x7e65)[0x7fae25c88e65] Dec 25 14:32:25 mysqld: /lib64/libc.so.6(clone+0x6d)[0x7fae2402988d] Dec 25 14:32:25 mysqld: Trying to get some variables. Dec 25 14:32:25 mysqld: Some pointers may be invalid and cause the dump to abort. Dec 25 14:32:25 mysqld: Query (0x7fa164015f00): SELECT count(id) FROM jos_jentla_jobs WHERE process_id > 0 AND `start_time` <= '2019-12-25 15:32:18' Dec 25 14:32:25 mysqld: Connection ID (thread ID): 3294865 Dec 25 14:32:25 mysqld: Status: NOT_KILLED Dec 25 14:32:25 mysqld: 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 Dec 25 14:32:25 mysqld: The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains Dec 25 14:32:25 mysqld: information that should help you find out what is causing the crash. Dec 25 14:32:25 mysqld: Writing a core file... Dec 25 14:32:25 mysqld: Working directory at /app/mysql Dec 25 14:32:25 mysqld: Resource Limits: Dec 25 14:32:25 mysqld: Limit Soft Limit Hard Limit Units Dec 25 14:32:25 mysqld: Max cpu time unlimited unlimited seconds Dec 25 14:32:25 mysqld: Max file size unlimited unlimited bytes Dec 25 14:32:25 mysqld: Max data size unlimited unlimited bytes Dec 25 14:32:25 mysqld: Max stack size 8388608 unlimited bytes Dec 25 14:32:25 mysqld: Max core file size 0 unlimited bytes Dec 25 14:32:25 mysqld: Max resident set unlimited unlimited bytes Dec 25 14:32:25 mysqld: Max processes 256972 256972 processes Dec 25 14:32:25 mysqld: Max open files 65535 65535 files Dec 25 14:32:25 mysqld: Max locked memory 65536 65536 bytes Dec 25 14:32:25 mysqld: Max address space unlimited unlimited bytes Dec 25 14:32:25 mysqld: Max file locks unlimited unlimited locks Dec 25 14:32:25 mysqld: Max pending signals 256972 256972 signals Dec 25 14:32:25 mysqld: Max msgqueue size 819200 819200 bytes Dec 25 14:32:25 mysqld: Max nice priority 40 40 Dec 25 14:32:25 mysqld: Max realtime priority 0 0 Dec 25 14:32:25 mysqld: Max realtime timeout unlimited unlimited us Dec 25 14:32:25 mysqld: Core pattern: core Dec 25 14:32:27 systemd: mariadb.service: main process exited, code=killed, status=6/ABRT