2021-04-13 20:59:49 140461216540416 [Warning] WSREP: SQL statement was ineffective thd: 333231953 buf: 147 schema: autoopt QUERY: COMMIT => Skipping replication 2021-04-13 21:01:13 140460541105920 [Warning] Aborted connection 333237955 to db: 'autoopt' user: 'alliance-auto' host: '192.168.0.24' (Got an error reading communication packets) 2021-04-13 21:01:15 140463433926400 [Warning] Aborted connection 333234718 to db: 'autoopt' user: 'alliance-auto' host: '192.168.0.24' (Got an error writing communication packets) 2021-04-13 21:01:15 140461221988096 [Warning] Aborted connection 333238635 to db: 'autoopt' user: 'alliance-auto' host: '192.168.0.24' (Got an error reading communication packets) 2021-04-13 21:05:09 140462438037248 [Warning] Aborted connection 333258770 to db: 'autoopt' user: 'alliance-auto' host: '192.168.0.34' (Got an error writing communication packets) 2021-04-13 21:14:47 140460595361536 [Warning] Aborted connection 333298190 to db: 'tp' user: 'tp' host: '172.30.100.180' (Got an error reading communication packets) 2021-04-13 21:15:07 140460708132608 [Warning] Aborted connection 333299946 to db: 'autoopt' user: 'alliance-auto' host: '192.168.0.33' (Got an error writing communication packets) 2021-04-13 21:15:49 140461216540416 [Warning] Aborted connection 333231953 to db: 'autoopt' user: 'alliance-auto' host: '172.16.12.35' (Got an error reading communication packets) 2021-04-13 21:15:49 140463429682944 [Warning] Aborted connection 333293936 to db: 'autoopt' user: 'alliance-auto' host: '172.16.12.35' (Got an error reading communication packets) 2021-04-13 21:15:49 140460581418752 [Warning] Aborted connection 333132038 to db: 'autoopt' user: 'alliance-auto' host: '172.16.12.35' (Got an error reading communication packets) 2021-04-13 21:15:49 140461240383232 [Warning] Aborted connection 333130453 to db: 'autoopt' user: 'alliance-auto' host: '172.16.12.35' (Got an error reading communication packets) 2021-04-13 21:20:47 140462457132800 [Warning] Aborted connection 333322629 to db: 'tp' user: 'tp' host: '172.30.100.180' (Got an error reading communication packets) 2021-04-13 21:21:52 140460561716992 [Warning] WSREP: SQL statement was ineffective thd: 333320662 buf: 147 schema: autoopt QUERY: COMMIT => Skipping replication 2021-04-13 21:21:52 140460561716992 [ERROR] WSREP: FSM: no such a transition ROLLED_BACK -> ROLLED_BACK 210413 21:21:52 [ERROR] mysqld got signal 6 ; 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: 10.2.25-MariaDB-log key_buffer_size=268435456 read_buffer_size=131072 max_used_connections=1044 max_threads=2402 thread_count=181 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 5540086 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7fb2a4bcce78 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 = 0x7fbf85e2cd70 thread_stack 0x49000 2021-04-13 21:21:53 140589934851840 [Warning] WSREP: last inactive check more than PT1.5S ago (PT1.57652S), skipping check /usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x56092bf1411e] /usr/sbin/mysqld(handle_fatal_signal+0x30d)[0x56092b994d1d] 2021-04-13 21:21:56 140589934851840 [Warning] WSREP: last inactive check more than PT1.5S ago (PT1.67232S), skipping check /lib64/libpthread.so.0(+0xf5e0)[0x7fddac3cb5e0] /lib64/libc.so.6(gsignal+0x37)[0x7fddaa8d81f7] /lib64/libc.so.6(abort+0x148)[0x7fddaa8d98e8] /usr/lib64/galera/libgalera_smm.so(_ZN6galera3FSMINS_9TrxHandle5StateENS1_10TransitionENS_10EmptyGuardENS_11EmptyActionEE8shift_toES2_+0x17c)[0x7fdda74f58cc] /usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM13post_rollbackEPNS_9TrxHandleE+0x26)[0x7fdda74ebd96] /usr/lib64/galera/libgalera_smm.so(galera_post_rollback+0x45)[0x7fdda74fca75] 2021-04-13 21:22:05 140589934851840 [Warning] WSREP: last inactive check more than PT1.5S ago (PT1.81071S), skipping check /usr/sbin/mysqld(+0x60d215)[0x56092b925215] /usr/sbin/mysqld(+0x60d368)[0x56092b925368] /usr/sbin/mysqld(_Z17ha_rollback_transP3THDb+0xe3)[0x56092b997cd3] /usr/sbin/mysqld(_Z15ha_commit_transP3THDb+0x55c)[0x56092b9985ac] /usr/sbin/mysqld(_Z12trans_commitP3THD+0x4a)[0x56092b8dc41a] /usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x3b2b)[0x56092b7fd01b] /usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_statebb+0x2de)[0x56092b8020fe] /usr/sbin/mysqld(+0x4ea9af)[0x56092b8029af] /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0x10a5)[0x56092b804185] /usr/sbin/mysqld(_Z10do_commandP3THD+0x165)[0x56092b805e25] /usr/sbin/mysqld(_Z24do_handle_one_connectionP7CONNECT+0x1aa)[0x56092b8cec9a] /usr/sbin/mysqld(handle_one_connection+0x3d)[0x56092b8cedbd] 2021-04-13 21:22:08 140589934851840 [Warning] WSREP: last inactive check more than PT1.5S ago (PT1.63288S), skipping check /lib64/libpthread.so.0(+0x7e25)[0x7fddac3c3e25] 2021-04-13 21:22:11 140589934851840 [Warning] WSREP: last inactive check more than PT1.5S ago (PT1.58596S), skipping check /lib64/libc.so.6(clone+0x6d)[0x7fddaa99b34d] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0x7fbe04bbdf70): COMMIT Connection ID (thread ID): 333320662 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=off,derived_with_keys=off,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,par tial_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,ord erby_uses_equalities=on,condition_pushdown_for_derived=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 /home/mysql 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 773671 773671 processes Max open files 1048576 1048576 files Max locked memory 65536 65536 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 773671 773671 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