INNODB assertion failure -> crash

InnoDB: Assertion failure in file /home/buildbot/buildbot/build/m

ariadb-10.4.13/storage/innobase/row/row0sel.cc line 3966

InnoDB: We intentionally generate a memory trap.

InnoDB: Submit a detailed bug report to https://jira.mariadb.org/

InnoDB: If you get repeated assertion failures or crashes, even

InnoDB: immediately after the mysqld startup, there may be

InnoDB: corruption in the InnoDB tablespace. Please refer to

InnoDB: https://mariadb.com/kb/en/library/innodb-recovery-modes/

InnoDB: about forcing recovery.

200628 16:30:52 [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: 10.4.13-MariaDB-1:10.4.13+maria~focal-log

key_buffer_size=536870912

read_buffer_size=16777216

max_used_connections=10

max_threads=102

thread_count=50

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 3033535 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x7fcca4000c48

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 = 0x7fcdb2f13da8 thread_stack 0x49000

/usr/sbin/mysqld(my_print_stacktrace+0x32)[0x5572b70e1fa2]

/usr/sbin/mysqld(handle_fatal_signal+0x55d)[0x5572b6b78cbd]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x153c0)[0x7fd12343e3c0]

/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xcb)[0x7fd122b2d18b]

/lib/x86_64-linux-gnu/libc.so.6(abort+0x12b)[0x7fd122b0c859]

/usr/sbin/mysqld(+0x599aaa)[0x5572b6858aaa]

/usr/sbin/mysqld(+0x58e7bc)[0x5572b684d7bc]

/usr/sbin/mysqld(+0xb72357)[0x5572b6e31357]

/usr/sbin/mysqld(+0xa8c116)[0x5572b6d4b116]

/usr/sbin/mysqld(_ZN7handler18ha_index_next_sameEPhPKhj+0x1da)[0x5572b6b80bfa]

/usr/sbin/mysqld(+0x6e6875)[0x5572b69a5875]

/usr/sbin/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x1d3)[0x5572b6997e33]

/usr/sbin/mysqld(+0x6c9009)[0x5572b6988009]

/usr/sbin/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x210)[0x5572b6997e70]

/usr/sbin/mysqld(_ZN4JOIN10exec_innerEv+0xe0e)[0x5572b69c49ce]

/usr/sbin/mysqld(_ZN4JOIN4execEv+0x37)[0x5572b69c4c27]

/usr/sbin/mysqld(_Z12mysql_selectP3THDP10TABLE_LISTjR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0

x136)[0x5572b69c2d76]

/usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x15a)[0x5572b69c375a]

ut/ut0rbt.cc:458(rbt_eject_node(ib_rbt_node_t*, ib_rbt_node_t*) [clone .part.0])[0x5572b694fca1]

row/row0sel.cc:2949(row_search_idx_cond_check(unsigned char*, row_prebuilt_t*, unsigned char const*, unsigned short const*) [clone .cold])[0x5572

b695de52]

row/row0sel.cc:5266(row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long))[0x5572b69606e3]

handler/ha_innodb.cc:9543(ha_innobase::general_fetch(unsigned char*, unsigned int, unsigned int))[0x5572b6961098]

sql/handler.cc:3027(handler::ha_index_next_same(unsigned char*, unsigned char const*, unsigned int))[0x5572b696487c]

sql/sql_select.cc:21193(join_read_next_same(READ_RECORD*))[0x5572b6964f12]

sql/records.h:69(READ_RECORD::read_record())[0x5572b6a5544e]

sql/sql_select.cc:19904(JOIN::exec_inner())[0x5572b6a5556f]

sql/sql_parse.cc:6359(execute_sqlcom_select(THD*, TABLE_LIST*))[0x5572b7090146]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x9609)[0x7fd123432609]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x43)[0x7fd122c09103]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7fcca4025e40): SELECT directory_prefix, s.project_id, s.project_id, s.key, s.value, s.type         FROM redcap_external_modules m

  JOIN redcap_external_module_settings s          ON m.external_module_id = s.external_module_id         WHERE (s.key IN ('version', 'enabled'))

Connection ID (thread ID): 3142

Status: KILL_CONNECTION

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,eng

ine_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,out

er_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_push

down_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=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 /data/mysql/data

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             62401                62401                processes

Max open files            16364                16364                files

Max locked memory         65536                65536                bytes

Max address space         unlimited            unlimited            bytes

Max file locks            unlimited            unlimited            locks

Max pending signals       62401                62401                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: |/usr/share/apport/apport %p %s %c %d %P ...

Jun 28 16:30:57 redcap-db02 systemd[1]: mariadb.service: Main process exited, code=killed, status=6/ABRT

Jun 28 16:30:57 redcap-db02 systemd[1]: mariadb.service: Failed with result 'signal'.

Jun 28 16:31:02 redcap-db02 systemd[1]: mariadb.service: Scheduled restart job, restart counter is at 1.

Jun 28 16:31:02 redcap-db02 systemd[1]: Stopped MariaDB 10.4.13 database server.