@180512 12:15:01 [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: 10.1.29-MariaDB

key_buffer_size=402653184

read_buffer_size=2097152

max_used_connections=4

max_threads=153

thread_count=2

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 1023042 K  bytes of memory

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

Thread pointer: 0x7fa34576a008

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 = 0x7fa3427fe190 thread_stack 0x48400

/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x7fa385e7965e]

/usr/sbin/mysqld(handle_fatal_signal+0x305)[0x7fa38599d015]

/lib64/libpthread.so.0(+0xf5e0)[0x7fa384fab5e0]

/usr/sbin/mysqld(_ZN17Query_cache_block11headers_lenEv+0x0)[0x7fa3857d5ce0]

/usr/sbin/mysqld(_ZN17Query_cache_block4dataEv+0x11)[0x7fa3857d5d01]

/usr/sbin/mysqld(_ZN11Query_cache6insertEP3THDP15Query_cache_tlsPKcmj+0x5c)[0x7fa3857d96ec]

/usr/sbin/mysqld(net_real_write+0x45)[0x7fa385782e25]

/usr/sbin/mysqld(net_flush+0x23)[0x7fa385783163]

/usr/sbin/mysqld(net_write_command+0x3fb)[0x7fa3857838cb]

/usr/sbin/mysqld(cli_advanced_command+0xe2)[0x7fa38597caa2]

/usr/sbin/mysqld(mysql_send_query+0x31)[0x7fa38597a181]

/usr/sbin/mysqld(mysql_real_query+0x11)[0x7fa38597a1a1]

/usr/lib64/mysql/plugin/ha_spider.so(_ZN15spider_db_mysql10exec_queryEPKcji+0x2c7)[0x7fa37d5c8f07]

/usr/lib64/mysql/plugin/ha_spider.so(_ZN20spider_mysql_handler17show_table_statusEiij+0x802)[0x7fa37d5c80c2]

/usr/lib64/mysql/plugin/ha_spider.so(_Z14spider_get_stsP15st_spider_shareilP9ha_spiderdiiij+0xae)[0x7fa37d58fdfe]

/usr/lib64/mysql/plugin/ha_spider.so(_Z20spider_bg_sts_actionPv+0x5dc)[0x7fa37d57d9bc]

/lib64/libpthread.so.0(+0x7e25)[0x7fa384fa3e25]

/lib64/libc.so.6(clone+0x6d)[0x7fa38334934d]

Trying to get some variables.

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

Query (0x0): 

Connection ID (thread ID): 21538

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=off

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.

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Using mutexes to ref count buffer pool pages

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: The InnoDB memory heap is disabled

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Compressed tables use zlib 1.2.7

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Using Linux native AIO

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Using generic crc32 instructions

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Initializing buffer pool, size = 128.0M

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Completed initialization of buffer pool

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Highest supported file format is Barracuda.

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: The log sequence number 141678940 in ibdata file do not match the log sequence number 141687910 in the ib_logfiles!

2018-05-12 12:15:07 140436573571328 [Note] InnoDB: Restoring possible half-written data pages from the doublewrite buffer...

InnoDB: Last MySQL binlog file position 0 46478766, file name ./mysql-bin.000013

2018-05-12 12:15:08 140436573571328 [Note] InnoDB: 128 rollback segment(s) are active.

2018-05-12 12:15:08 140436573571328 [Note] InnoDB: Waiting for purge to start

2018-05-12 12:15:08 140436573571328 [Note] InnoDB:  Percona XtraDB (http://www.percona.com) 5.6.36-82.2 started; log sequence number 141687910

2018-05-12 12:15:08 140436573571328 [Note] Plugin 'FEEDBACK' is disabled.

2018-05-12 12:15:08 140436573571328 [Note] Recovering after a crash using mysql-bin

2018-05-12 12:15:08 140435527788288 [Note] InnoDB: Dumping buffer pool(s) not yet started

2018-05-12 12:15:08 140436573571328 [Note] Starting crash recovery...

2018-05-12 12:15:08 140436573571328 [Note] Crash recovery finished.

2018-05-12 12:15:08 140436573571328 [Note] Server socket created on IP: '::'.

2018-05-12 12:15:08 140436573571328 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--log-basename=#' or '--relay-log=ryukyu-malldb1-relay-bin' to avoid this problem.

2018-05-12 12:15:08 140436573571328 [Note] /usr/sbin/mysqld: ready for connections.

Version: '10.1.29-MariaDB'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MariaDB Server

2018-05-12 12:45:02 140436572232448 [ERROR] mysqld: Table './mysql/spider_tables' is marked as crashed and should be repaired

2018-05-12 12:45:02 140436572232448 [Warning] Checking table:   './mysql/spider_tables'