mysql -uxxxx -p -S/tmp/galera_102.sock --port=3307 

Enter password: 

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 14

Server version: 10.2.24-MariaDB-log MariaDB Server

Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> 

MariaDB [(none)]> 

MariaDB [(none)]> \s

--------------

mysql  Ver 15.1 Distrib 10.2.12-MariaDB, for Linux (x86_64) using readline 5.1

Connection id:		14

Current database:	

Current user:		xxxx@localhost

SSL:			Not in use

Current pager:		stdout

Using outfile:		''

Using delimiter:	;

Server:			MariaDB

Server version:		10.2.24-MariaDB-log MariaDB Server

Protocol version:	10

Connection:		Localhost via UNIX socket

Server characterset:	latin1

Db     characterset:	latin1

Client characterset:	latin1

Conn.  characterset:	latin1

UNIX socket:		/tmp/galera_102.sock

Uptime:			54 sec

Threads: 13  Questions: 4512  Slow queries: 0  Opens: 71  Flush tables: 1  Open tables: 65  Queries per second avg: 83.555

--------------

MariaDB [(none)]> 

MariaDB [(none)]> 

MariaDB [(none)]> 

MariaDB [(none)]> 

MariaDB [(none)]> use information_schema

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

show taDatabase changed

MariaDB [information_schema]> show tables;

ERROR 2006 (HY000): MySQL server has gone away

No connection. Trying to reconnect...

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/galera_102.sock' (111)

ERROR: Can't connect to the server

unknown [information_schema]> 

/usr/local/mariadb_102/bin/mysqld(_Z17find_schema_tableP3THDPKcPb+0x50)[0x655cf0]

/usr/local/mariadb_102/bin/mysqld(_Z11open_tablesP3THDRK14DDL_options_stPP10TABLE_LISTPjPP19Sroutine_hash_entryjP19Prelocking_strategy+0x73b)[0x5a24eb]

/usr/local/mariadb_102/bin/mysqld(_Z30open_normal_and_derived_tablesP3THDP10TABLE_LISTjj+0x6e)[0x5a322e]

/usr/local/mariadb_102/bin/mysqld(_Z18mysqld_list_fieldsP3THDP10TABLE_LISTPKc+0x34)[0x65ed34]

/usr/local/mariadb_102/bin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0x2d26)[0x5fb0f6]

ibuf/ibuf0ibuf.cc:1471(ibuf_dummy_index_free)[0x5fb465]

/usr/local/mariadb_102/bin/mysqld(_Z24do_handle_one_connectionP7CONNECT+0x235)[0x6e3a55]

/usr/local/mariadb_102/bin/mysqld(handle_one_connection+0x3f)[0x6e3c1f]

pthread_create.c:0(start_thread)[0x7fe258bb6e25]

/lib64/libc.so.6(clone+0x6d)[0x7fe257a92bad]

Trying to get some variables.

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

Query (0x7fde0400f920): 

Connection ID (thread ID): 14

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

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 /binlogs/galeradata_102

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        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             210944               210944               processes 

Max open files            430536               430536               files     

Max locked memory         65536                65536                bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       1030115              1030115              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/libexec/abrt-hook-ccpp %s %c %p %u %g %t e %P %I %h