2018-03-20T16:21:02.902039Z 0 [Warning] option 'max_prepared_stmt_count': unsigned value 100000000 adjusted to 1048576 2018-03-20T16:21:03.035041Z 0 [Warning] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld: Empty value for 'port' specified. Will throw an error in future versions 2018-03-20T16:21:03.035059Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2018-03-20T16:21:03.035093Z 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled 2018-03-20T16:21:03.035112Z 0 [Note] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld (mysqld 5.7.21) starting as process 8743 ... 2018-03-20T16:21:03.039106Z 0 [Note] InnoDB: PUNCH HOLE support available 2018-03-20T16:21:03.039131Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2018-03-20T16:21:03.039138Z 0 [Note] InnoDB: Uses event mutexes 2018-03-20T16:21:03.039144Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier 2018-03-20T16:21:03.039149Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3 2018-03-20T16:21:03.039154Z 0 [Note] InnoDB: Using Linux native AIO 2018-03-20T16:21:03.042879Z 0 [Note] InnoDB: Number of pools: 1 2018-03-20T16:21:03.043000Z 0 [Note] InnoDB: Using CPU crc32 instructions 2018-03-20T16:21:03.047352Z 0 [Note] InnoDB: Initializing buffer pool, total size = 10G, instances = 8, chunk size = 128M 2018-03-20T16:21:03.936469Z 0 [Note] InnoDB: Completed initialization of buffer pool 2018-03-20T16:21:04.145184Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority(). 2018-03-20T16:21:04.167156Z 0 [Note] InnoDB: Highest supported file format is Barracuda. 2018-03-20T16:21:04.606578Z 0 [Warning] InnoDB: Resizing redo log from 2*3072 to 2*128000 pages, LSN=2551175 2018-03-20T16:21:04.710351Z 0 [Warning] InnoDB: Starting to delete and rewrite log files. 2018-03-20T16:21:04.732974Z 0 [Note] InnoDB: Setting log file ./ib_logfile101 size to 2000 MB 2018-03-20T16:21:04.733554Z 0 [Note] InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-03-20T16:21:14.206292Z 0 [Note] InnoDB: Setting log file ./ib_logfile1 size to 2000 MB 2018-03-20T16:21:14.206458Z 0 [Note] InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-03-20T16:21:23.890980Z 0 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0 2018-03-20T16:21:23.891054Z 0 [Warning] InnoDB: New log files created, LSN=2551175 2018-03-20T16:21:23.891407Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables 2018-03-20T16:21:23.891524Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ... 2018-03-20T16:21:23.945287Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB. 2018-03-20T16:21:23.946188Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active. 2018-03-20T16:21:23.946201Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active. 2018-03-20T16:21:23.946917Z 0 [Note] InnoDB: Waiting for purge to start 2018-03-20T16:21:23.997108Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 19852ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.) 2018-03-20T16:21:23.997413Z 0 [Note] InnoDB: 5.7.21 started; log sequence number 2551166 2018-03-20T16:21:23.998016Z 0 [Note] InnoDB: Loading buffer pool(s) from /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/data/ib_buffer_pool 2018-03-20T16:21:23.998148Z 0 [Note] Plugin 'FEDERATED' is disabled. 2018-03-20T16:21:24.005916Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key 2018-03-20T16:21:24.006153Z 0 [Note] Server hostname (bind-address): '*'; port: 3306 2018-03-20T16:21:24.011495Z 0 [Note] IPv6 is available. 2018-03-20T16:21:24.011514Z 0 [Note] - '::' resolves to '::'; 2018-03-20T16:21:24.011535Z 0 [Note] Server socket created on IP: '::'. 2018-03-20T16:21:24.017235Z 0 [Note] InnoDB: Buffer pool(s) load completed at 180320 12:21:24 2018-03-20T16:21:24.093215Z 0 [Note] Event Scheduler: Loaded 0 events 2018-03-20T16:21:24.093406Z 0 [Note] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld: ready for connections. Version: '5.7.21' socket: '/tmp/ps-perf-mysql.sock' port: 3306 MySQL Community Server (GPL) 2018-03-20T16:22:22.823327Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 5889ms. The settings might not be optimal. (flushed=6408 and evicted=0, during the time.) 2018-03-20T16:22:43.227706Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 4546ms. The settings might not be optimal. (flushed=3372 and evicted=0, during the time.) 2018-03-20T16:33:40.270888Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 4039ms. The settings might not be optimal. (flushed=5858 and evicted=0, during the time.) 16:33:50 UTC - 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. Attempting to collect some information that could help diagnose the problem. As this is a crash and something is definitely wrong, the information collection process might fail. key_buffer_size=8388608 read_buffer_size=131072 max_used_connections=2048 max_threads=5000 thread_count=1901 connection_count=1901 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 1994988 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7eff3c04a590 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 = 7efcf7e4be28 thread_stack 0x40000 /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(my_print_stacktrace+0x35)[0xf4a495] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(handle_fatal_signal+0x4a4)[0x7ce2f4] /lib64/libpthread.so.0(+0xf7e0)[0x7f03dea687e0] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z30dict_index_set_merge_thresholdP12dict_index_tm+0x2b5)[0x11cea15] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z32innobase_parse_hint_from_commentP3THDP12dict_table_tPK11TABLE_SHARE+0x652)[0xfeedb2] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_ZN19create_table_info_t24create_table_update_dictEv+0x1e0)[0xff2f20] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_ZN11ha_innobase6createEPKcP5TABLEP24st_ha_create_information+0xfc)[0xff4aec] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z15ha_create_tableP3THDPKcS2_S2_P24st_ha_create_informationbb+0x2a3)[0x818c33] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z16rea_create_tableP3THDPKcS2_S2_P24st_ha_create_informationR4ListI12Create_fieldEjP6st_keyP7handlerb+0x11a)[0xddc19a] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld[0xd7d74a] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z26mysql_create_table_no_lockP3THDPKcS2_P24st_ha_create_informationP10Alter_infojPb+0xef)[0xd7e01f] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z18mysql_create_tableP3THDP10TABLE_LISTP24st_ha_create_informationP10Alter_info+0x9f)[0xd7e7bf] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z21mysql_execute_commandP3THDb+0x4f65)[0xd1aa55] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z11mysql_parseP3THDP12Parser_state+0x40d)[0xd1af7d] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z16dispatch_commandP3THDPK8COM_DATA19enum_server_command+0x119a)[0xd1c19a] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(_Z10do_commandP3THD+0x194)[0xd1d044] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(handle_connection+0x29c)[0xded7ac] /data/perf/mysql-5.7.21-linux-glibc2.12-x86_64/bin/mysqld(pfs_spawn_thread+0x174)[0xf707b4] /lib64/libpthread.so.0(+0x7aa1)[0x7f03dea60aa1] /lib64/libc.so.6(clone+0x6d)[0x7f03dd5bebcd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7eff3c094740): CREATE TABLE sbtest1907( id INTEGER NOT NULL AUTO_INCREMENT, k INTEGER DEFAULT '0' NOT NULL, c CHAR(120) DEFAULT '' NOT NULL, pad CHAR(60) DEFAULT '' NOT NULL, PRIMARY KEY (id) ) /*! ENGINE = innodb */ Connection ID (thread ID): 1908 Status: NOT_KILLED 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