Core dump in mysqld when executing SELECT statement

180511 14:36:20 [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: 10.3.6-MariaDB-1:10.3.6+maria~xenial-log

key_buffer_size=402653184

read_buffer_size=2097152

max_used_connections=3

max_threads=102

thread_count=10

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 813259 K  bytes of memory

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

Thread pointer: 0x7f8a6c0009a8

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 = 0x7f8ac440ccf8 thread_stack 0x49000

/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x555bbc26097e]

mysys/stacktrace.c:270(my_print_stacktrace)[0x555bbbd0fd67]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7f8b088c7390]

/usr/sbin/mysqld(_Z30setup_sj_materialization_part2P13st_join_table+0x2ab)[0x555bbbc4769b]

sql/opt_subselect.cc:3955(setup_sj_materialization_part2(st_join_table*))[0x555bbba51f73]

sql/sql_select.cc:11916(make_join_readinfo(JOIN*, unsigned long long, unsigned int))[0x555bbbb8a050]

sql/sql_select.cc:2341(JOIN::optimize_stage2())[0x555bbbb8c01f]

sql/sql_select.cc:1511(JOIN::optimize_inner())[0x555bbbb8c207]

sql/sql_select.cc:1433(JOIN::optimize())[0x555bbbb8e0d0]

sql/sql_select.cc:4138(mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x555bbbb8e208]

sql/sql_select.cc:382(handle_select(THD*, LEX*, select_result*, unsigned long))[0x555bbba516eb]

sql/sql_parse.cc:6541(execute_sqlcom_select(THD*, TABLE_LIST*) [clone .constprop.235])[0x555bbbb3d2bd]

sql/sql_parse.cc:3768(mysql_execute_command(THD*))[0x555bbbb5387d]

sql/sql_prepare.cc:4740(Prepared_statement::execute(String*, bool))[0x555bbbb53f34]

sql/sql_prepare.cc:4170(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*))[0x555bbbb54a08]

sql/sql_prepare.cc:3170(mysql_stmt_execute_common(THD*, unsigned long, unsigned char*, unsigned char*, unsigned long, bool, bool) [clone .constprop.202])[0x555bbbb54b45]

sql/sql_prepare.cc:3069(mysqld_stmt_execute(THD*, char*, unsigned int))[0x555bbbb416ad]

sql/sql_parse.cc:1788(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x555bbbb428e7]

sql/sql_parse.cc:1393(do_command(THD*))[0x555bbbc1083a]

sql/sql_connect.cc:1402(do_handle_one_connection(CONNECT*))[0x555bbbc109ad]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba)[0x7f8b088bd6ba]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f8b07f6841d]

Trying to get some variables.

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

Query (0x7f8a6c013770): select count(*) as aggregate from `onsite_assessment`.`mmic_focuses` where `onsite_consult_id` = 58 and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '12' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '7' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '9' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '11' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '4' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '10' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '1' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '2' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and exists (select * from `onsite_assessment`.`mmic_sub_focuses` where `onsite_assessment`.`mmic_focuses`.`id` = `onsite_assessment`.`mmic_sub_focuses`.`focus_id` and `id` != '3' and `onsite_assessment`.`mmic_sub_focuses`.`deleted_at` is null) and `onsite_assessment`.`mmic_focuses`.`deleted_at` is null

Connection ID (thread ID): 10

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 at /var/lib/mysql/

mysqld --print-defaults

mysqld would have been started with the following arguments:

--stack-trace --core-file --disable-gdb --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306 --basedir=/usr --datadir=/var/lib/mysql --tmpdir=/tmp --lc_messages_dir=/usr/share/mysql --lc_messages=en_US --skip-external-locking --bind-address=0.0.0.0 --max_connections=100 --connect_timeout=5 --wait_timeout=600 --max_allowed_packet=16M --thread_cache_size=128 --sort_buffer_size=4M --bulk_insert_buffer_size=16M --tmp_table_size=32M --max_heap_table_size=32M --myisam_recover_options=BACKUP --key_buffer_size=128M --table_open_cache=400 --myisam_sort_buffer_size=512M --concurrent_insert=2 --read_buffer_size=2M --read_rnd_buffer_size=1M --query_cache_limit=128K --query_cache_size=64M --log_warnings=2 --slow_query_log_file=/var/log/mysql/mariadb-slow.log --long_query_time=10 --log_slow_verbosity=query_plan --log_bin=/var/log/mysql/mariadb-bin --log_bin_index=/var/log/mysql/mariadb-bin.index --expire_logs_days=10 --max_binlog_size=100M --default_storage_engine=InnoDB --innodb_buffer_pool_size=256M --innodb_log_buffer_size=8M --innodb_file_per_table=1 --innodb_open_files=400 --innodb_io_capacity=400 --innodb_flush_method=O_DIRECT --default_storage_engine=InnoDB --skip-character-set-client-handshake --collation_server=utf8_unicode_ci --character_set_server=utf8 --long_query_time=10 --log-queries-not-using-indexes=OFF --skip-external-locking --key_buffer_size=384M --max_allowed_packet=128M --table_open_cache=512 --sort_buffer_size=2M --read_buffer_size=2M --read_rnd_buffer_size=8M --myisam_sort_buffer_size=64M --thread_cache_size=8 --query_cache_size=32M --innodb_data_home_dir=/var/lib/mysql --innodb_data_file_path=ibdata1:10M:autoextend --innodb_log_group_home_dir=/var/lib/mysql --innodb_buffer_pool_size=384M --innodb_log_file_size=100M --innodb_log_buffer_size=8M --innodb_flush_log_at_trx_commit=1 --innodb_lock_wait_timeout=50 --general-log --general-log-file=/var/log/mysql/queries.log --log-output=file --log-error=/var/log/mysql/error.log