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  1. MariaDB Server
  2. MDEV-25344

Two hosts crashed at the same time with: Failing assertion: !cursor->index->is_committed()

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      Two hosts running 10.4.15 crashed exactly at the same time after replicating a certain query via replication, these are the logs:

      Apr 06 01:25:08 db2147 mysqld[12450]: 2021-04-06 01:25:08 0x7f7ac15d4700  InnoDB: Assertion failure in file /root/mariadb-10.4.15/storage/innobase/row/row0ins.cc line 218
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: Failing assertion: !cursor->index->is_committed()
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: We intentionally generate a memory trap.
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: Submit a detailed bug report to https://jira.mariadb.org/
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: If you get repeated assertion failures or crashes, even
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: immediately after the mysqld startup, there may be
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: corruption in the InnoDB tablespace. Please refer to
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: https://mariadb.com/kb/en/library/innodb-recovery-modes/
      Apr 06 01:25:08 db2147 mysqld[12450]: InnoDB: about forcing recovery.
      Apr 06 01:25:08 db2147 mysqld[12450]: 210406  1:25:08 [ERROR] mysqld got signal 6 ;
      Apr 06 01:25:08 db2147 mysqld[12450]: This could be because you hit a bug. It is also possible that this binary
      Apr 06 01:25:08 db2147 mysqld[12450]: or one of the libraries it was linked against is corrupt, improperly built,
      Apr 06 01:25:08 db2147 mysqld[12450]: or misconfigured. This error can also be caused by malfunctioning hardware.
      Apr 06 01:25:08 db2147 mysqld[12450]: To report this bug, see https://mariadb.com/kb/en/reporting-bugs
      Apr 06 01:25:08 db2147 mysqld[12450]: We will try our best to scrape up some info that will hopefully help
      Apr 06 01:25:08 db2147 mysqld[12450]: diagnose the problem, but since we have already crashed,
      Apr 06 01:25:08 db2147 mysqld[12450]: something is definitely wrong and this may fail.
      Apr 06 01:25:08 db2147 mysqld[12450]: Server version: 10.4.15-MariaDB-log
      Apr 06 01:25:08 db2147 mysqld[12450]: key_buffer_size=134217728
      Apr 06 01:25:08 db2147 mysqld[12450]: read_buffer_size=131072
      Apr 06 01:25:08 db2147 mysqld[12450]: max_used_connections=22
      Apr 06 01:25:08 db2147 mysqld[12450]: max_threads=2010
      Apr 06 01:25:08 db2147 mysqld[12450]: thread_count=20
      Apr 06 01:25:08 db2147 mysqld[12450]: It is possible that mysqld could use up to
      Apr 06 01:25:08 db2147 mysqld[12450]: key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 4752266 K  bytes of memory
      Apr 06 01:25:08 db2147 mysqld[12450]: Hope that's ok; if not, decrease some variables in the equation.
      Apr 06 01:25:08 db2147 mysqld[12450]: Thread pointer: 0x7f7968000ce8
      Apr 06 01:25:08 db2147 mysqld[12450]: Attempting backtrace. You can use the following information to find out
      Apr 06 01:25:08 db2147 mysqld[12450]: where mysqld died. If you see no messages after this, something went
      Apr 06 01:25:08 db2147 mysqld[12450]: terribly wrong...
      Apr 06 01:25:08 db2147 mysqld[12450]: stack_bottom = 0x7f7ac15d3698 thread_stack 0x30000
      Apr 06 01:25:14 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(my_print_stacktrace+0x2e)[0x55d0c89976fe]
      Apr 06 01:25:14 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(handle_fatal_signal+0x54d)[0x55d0c849057d]
      Apr 06 01:25:26 db2147 mysqld[12450]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x12730)[0x7fdb16ddc730]
      Apr 06 01:25:36 db2147 mysqld[12450]: /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x10b)[0x7fdb164b87bb]
      Apr 06 01:25:36 db2147 mysqld[12450]: /lib/x86_64-linux-gnu/libc.so.6(abort+0x121)[0x7fdb164a3535]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0x5ad568)[0x55d0c8188568]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0x59b83e)[0x55d0c817683e]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0xafffce)[0x55d0c86dafce]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0xb377f8)[0x55d0c87127f8]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0xb37e2f)[0x55d0c8712e2f]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0xb1297c)[0x55d0c86ed97c]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0xa5bfcf)[0x55d0c8636fcf]
      Apr 06 01:25:46 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(_ZN7handler13ha_update_rowEPKhS1_+0xbb)[0x55d0c849c76b]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(_Z12mysql_updateP3THDP10TABLE_LISTR4ListI4ItemES6_PS4_jP8st_orderybPySA_+0x1b27)[0x55d0c8335cb7]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(_Z21mysql_execute_commandP3THD+0x2695)[0x55d0c8288145]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_statebb+0x1c9)[0x55d0c828df89]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(_ZN15Query_log_event14do_apply_eventEP14rpl_group_infoPKcj+0x750)[0x55d0c8588000]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0x607a52)[0x55d0c81e2a52]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(handle_slave_sql+0x1322)[0x55d0c81eba22]
      Apr 06 01:25:47 db2147 mysqld[12450]: /opt/wmf-mariadb104/bin/mysqld(+0xd6d19b)[0x55d0c894819b]
      Apr 06 01:25:56 db2147 mysqld[12450]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x7fa3)[0x7fdb16dd1fa3]
      Apr 06 01:26:08 db2147 mysqld[12450]: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7fdb1657a4cf]
      Apr 06 01:26:08 db2147 mysqld[12450]: Trying to get some variables.
      Apr 06 01:26:08 db2147 mysqld[12450]: Some pointers may be invalid and cause the dump to abort.
      Apr 06 01:26:08 db2147 mysqld[12450]: Query (0x7f754a00925a): UPDATE /* WikiPage::updateCategoryCounts  */  `category` SET cat_pages = cat_pages - 1,cat_files = cat_files - 1 WHERE cat_title = 'Images_from_Wiki_Loves_Monuments_missing_SDC_participant_in'
      Apr 06 01:26:08 db2147 mysqld[12450]: Connection ID (thread ID): 965915
      Apr 06 01:26:08 db2147 mysqld[12450]: Status: NOT_KILLED
      Apr 06 01:26:08 db2147 mysqld[12450]: 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=on,mrr_cost_based=on,mrr_sort_keys=on,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=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=off,condition_pushdown_from_having=on
      Apr 06 01:26:08 db2147 mysqld[12450]: The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
      Apr 06 01:26:08 db2147 mysqld[12450]: information that should help you find out what is causing the crash.
      Apr 06 01:26:08 db2147 mysqld[12450]: Writing a core file...
      Apr 06 01:26:08 db2147 mysqld[12450]: Working directory at /srv/sqldata
      Apr 06 01:26:08 db2147 mysqld[12450]: Resource Limits:
      Apr 06 01:26:08 db2147 mysqld[12450]: Limit                     Soft Limit           Hard Limit           Units
      Apr 06 01:26:08 db2147 mysqld[12450]: Max cpu time              unlimited            unlimited            seconds
      Apr 06 01:26:08 db2147 mysqld[12450]: Max file size             unlimited            unlimited            bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max data size             unlimited            unlimited            bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max stack size            8388608              unlimited            bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max core file size        0                    0                    bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max resident set          unlimited            unlimited            bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max processes             2058337              2058337              processes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max open files            200001               200001               files
      Apr 06 01:26:08 db2147 mysqld[12450]: Max locked memory         65536                65536                bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max address space         unlimited            unlimited            bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max file locks            unlimited            unlimited            locks
      Apr 06 01:26:08 db2147 mysqld[12450]: Max pending signals       2058337              2058337              signals
      Apr 06 01:26:08 db2147 mysqld[12450]: Max msgqueue size         819200               819200               bytes
      Apr 06 01:26:08 db2147 mysqld[12450]: Max nice priority         0                    0
      Apr 06 01:26:08 db2147 mysqld[12450]: Max realtime priority     0                    0
      Apr 06 01:26:08 db2147 mysqld[12450]: Max realtime timeout      unlimited            unlimited            us
      Apr 06 01:26:08 db2147 mysqld[12450]: Core pattern: /var/tmp/core/core.%h.%e.%p.%t
      Apr 06 01:26:33 db2147 systemd[1]: mariadb.service: Main process exited, code=killed, status=6/ABRT
      

      This is the second host:

      Apr 06 01:25:08 db2106 mysqld[27097]: 2021-04-06 01:25:08 0x7f975e686700  InnoDB: Assertion failure in file /root/mariadb-10.4.15/storage/innobase/row/row0ins.cc line 218
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: Failing assertion: !cursor->index->is_committed()
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: We intentionally generate a memory trap.
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: Submit a detailed bug report to https://jira.mariadb.org/
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: If you get repeated assertion failures or crashes, even
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: immediately after the mysqld startup, there may be
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: corruption in the InnoDB tablespace. Please refer to
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: https://mariadb.com/kb/en/library/innodb-recovery-modes/
      Apr 06 01:25:08 db2106 mysqld[27097]: InnoDB: about forcing recovery.
      Apr 06 01:25:08 db2106 mysqld[27097]: 210406  1:25:08 [ERROR] mysqld got signal 6 ;
      Apr 06 01:25:08 db2106 mysqld[27097]: This could be because you hit a bug. It is also possible that this binary
      Apr 06 01:25:08 db2106 mysqld[27097]: or one of the libraries it was linked against is corrupt, improperly built,
      Apr 06 01:25:08 db2106 mysqld[27097]: or misconfigured. This error can also be caused by malfunctioning hardware.
      Apr 06 01:25:08 db2106 mysqld[27097]: To report this bug, see https://mariadb.com/kb/en/reporting-bugs
      Apr 06 01:25:08 db2106 mysqld[27097]: We will try our best to scrape up some info that will hopefully help
      Apr 06 01:25:08 db2106 mysqld[27097]: diagnose the problem, but since we have already crashed,
      Apr 06 01:25:08 db2106 mysqld[27097]: something is definitely wrong and this may fail.
      Apr 06 01:25:08 db2106 mysqld[27097]: Server version: 10.4.15-MariaDB-log
      Apr 06 01:25:08 db2106 mysqld[27097]: key_buffer_size=134217728
      Apr 06 01:25:08 db2106 mysqld[27097]: read_buffer_size=131072
      Apr 06 01:25:08 db2106 mysqld[27097]: max_used_connections=22
      Apr 06 01:25:08 db2106 mysqld[27097]: max_threads=2010
      Apr 06 01:25:08 db2106 mysqld[27097]: thread_count=20
      Apr 06 01:25:08 db2106 mysqld[27097]: It is possible that mysqld could use up to
      Apr 06 01:25:08 db2106 mysqld[27097]: key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 4752266 K  bytes of memory
      Apr 06 01:25:08 db2106 mysqld[27097]: Hope that's ok; if not, decrease some variables in the equation.
      Apr 06 01:25:08 db2106 mysqld[27097]: Thread pointer: 0x7f948b158af8
      Apr 06 01:25:08 db2106 mysqld[27097]: Attempting backtrace. You can use the following information to find out
      Apr 06 01:25:08 db2106 mysqld[27097]: where mysqld died. If you see no messages after this, something went
      Apr 06 01:25:08 db2106 mysqld[27097]: terribly wrong...
      Apr 06 01:25:08 db2106 mysqld[27097]: stack_bottom = 0x7f975e685698 thread_stack 0x30000
      Apr 06 01:25:16 db2106 mysqld[27097]: 2021-04-06  1:25:16 968179 [ERROR] Error reading packet from server: Lost connection to MySQL server during query (server_errno=2013)
      Apr 06 01:25:16 db2106 mysqld[27097]: 2021-04-06  1:25:16 968179 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'db2090-bin.006718' at position 516814095; GTID position '0-180359175-3375835514,171978876-171978876-2496072471,171966557-171966557-1948492266,180363436-180363436-1169124439,171978775-
      Apr 06 01:25:16 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(my_print_stacktrace+0x2e)[0x55e74f97a6fe]
      Apr 06 01:25:16 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(handle_fatal_signal+0x54d)[0x55e74f47357d]
      Apr 06 01:25:32 db2106 mysqld[27097]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x12730)[0x7ff7b4f54730]
      Apr 06 01:25:48 db2106 mysqld[27097]: /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x10b)[0x7ff7b46307bb]
      Apr 06 01:25:48 db2106 mysqld[27097]: /lib/x86_64-linux-gnu/libc.so.6(abort+0x121)[0x7ff7b461b535]
      Apr 06 01:26:04 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0x5ad568)[0x55e74f16b568]
      Apr 06 01:26:04 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0x59b83e)[0x55e74f15983e]
      Apr 06 01:26:04 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0xafffce)[0x55e74f6bdfce]
      Apr 06 01:26:04 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0xb377f8)[0x55e74f6f57f8]
      Apr 06 01:26:04 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0xb37e2f)[0x55e74f6f5e2f]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0xb1297c)[0x55e74f6d097c]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0xa5bfcf)[0x55e74f619fcf]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(_ZN7handler13ha_update_rowEPKhS1_+0xbb)[0x55e74f47f76b]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(_Z12mysql_updateP3THDP10TABLE_LISTR4ListI4ItemES6_PS4_jP8st_orderybPySA_+0x1b27)[0x55e74f318cb7]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(_Z21mysql_execute_commandP3THD+0x2695)[0x55e74f26b145]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_statebb+0x1c9)[0x55e74f270f89]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(_ZN15Query_log_event14do_apply_eventEP14rpl_group_infoPKcj+0x750)[0x55e74f56b000]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0x607a52)[0x55e74f1c5a52]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(handle_slave_sql+0x1322)[0x55e74f1cea22]
      Apr 06 01:26:05 db2106 mysqld[27097]: /opt/wmf-mariadb104/bin/mysqld(+0xd6d19b)[0x55e74f92b19b]
      Apr 06 01:26:20 db2106 mysqld[27097]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x7fa3)[0x7ff7b4f49fa3]
      Apr 06 01:26:36 db2106 mysqld[27097]: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7ff7b46f24cf]
      Apr 06 01:26:36 db2106 mysqld[27097]: Trying to get some variables.
      Apr 06 01:26:36 db2106 mysqld[27097]: Some pointers may be invalid and cause the dump to abort.
      Apr 06 01:26:36 db2106 mysqld[27097]: Query (0x7f9261fae06a): UPDATE /* WikiPage::updateCategoryCounts  */  `category` SET cat_pages = cat_pages - 1,cat_files = cat_files - 1 WHERE cat_title = 'Images_from_Wiki_Loves_Monuments_missing_SDC_participant_in'
      Apr 06 01:26:36 db2106 mysqld[27097]: Connection ID (thread ID): 968180
      Apr 06 01:26:36 db2106 mysqld[27097]: Status: NOT_KILLED
      Apr 06 01:26:36 db2106 mysqld[27097]: 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=on,mrr_cost_based=on,mrr_sort_keys=on,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=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=off,condition_pushdown_from_having=on
      Apr 06 01:26:36 db2106 mysqld[27097]: The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
      Apr 06 01:26:36 db2106 mysqld[27097]: information that should help you find out what is causing the crash.
      Apr 06 01:26:36 db2106 mysqld[27097]: Writing a core file...
      Apr 06 01:26:36 db2106 mysqld[27097]: Working directory at /srv/sqldata
      Apr 06 01:26:36 db2106 mysqld[27097]: Resource Limits:
      Apr 06 01:26:36 db2106 mysqld[27097]: Limit                     Soft Limit           Hard Limit           Units
      Apr 06 01:26:36 db2106 mysqld[27097]: Max cpu time              unlimited            unlimited            seconds
      Apr 06 01:26:36 db2106 mysqld[27097]: Max file size             unlimited            unlimited            bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max data size             unlimited            unlimited            bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max stack size            8388608              unlimited            bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max core file size        0                    0                    bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max resident set          unlimited            unlimited            bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max processes             2058365              2058365              processes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max open files            200001               200001               files
      Apr 06 01:26:36 db2106 mysqld[27097]: Max locked memory         65536                65536                bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max address space         unlimited            unlimited            bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max file locks            unlimited            unlimited            locks
      Apr 06 01:26:36 db2106 mysqld[27097]: Max pending signals       2058365              2058365              signals
      Apr 06 01:26:36 db2106 mysqld[27097]: Max msgqueue size         819200               819200               bytes
      Apr 06 01:26:36 db2106 mysqld[27097]: Max nice priority         0                    0
      Apr 06 01:26:36 db2106 mysqld[27097]: Max realtime priority     0                    0
      Apr 06 01:26:36 db2106 mysqld[27097]: Max realtime timeout      unlimited            unlimited            us
      Apr 06 01:26:36 db2106 mysqld[27097]: Core pattern: /var/tmp/core/core.%h.%e.%p.%t
      Apr 06 01:27:04 db2106 systemd[1]: mariadb.service: Main process exited, code=killed, status=6/ABRT
      -- Subject: Unit process exited
      

      The table schema is:

             Table: category
      Create Table: CREATE TABLE `category` (
        `cat_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
        `cat_title` varbinary(255) NOT NULL DEFAULT '',
        `cat_pages` int(11) NOT NULL DEFAULT 0,
        `cat_subcats` int(11) NOT NULL DEFAULT 0,
        `cat_files` int(11) NOT NULL DEFAULT 0,
        PRIMARY KEY (`cat_id`),
        UNIQUE KEY `cat_title` (`cat_title`),
        KEY `cat_pages` (`cat_pages`)
      ) ENGINE=InnoDB AUTO_INCREMENT=351025254 DEFAULT CHARSET=binary ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8
      

      The table was checked after the crash and it both reported ok

      root@db2147.codfw.wmnet[commonswiki]> check table category;
      +----------------------+-------+----------+----------+
      | Table                | Op    | Msg_type | Msg_text |
      +----------------------+-------+----------+----------+
      | commonswiki.category | check | status   | OK       |
      +----------------------+-------+----------+----------+
      1 row in set (33.649 sec)
       
       
      root@db2106.codfw.wmnet[commonswiki]> start slave;
      Query OK, 0 rows affected, 1 warning (0.032 sec)
       
      root@db2106.codfw.wmnet[commonswiki]> check table category;
      +----------------------+-------+----------+----------+
      | Table                | Op    | Msg_type | Msg_text |
      +----------------------+-------+----------+----------+
      | commonswiki.category | check | status   | OK       |
      +----------------------+-------+----------+----------+
      1 row in set (35.585 sec)
      

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              Assignee:
              marko Marko Mäkelä
              Reporter:
              marostegui Manuel Arostegui
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                  Git Integration