2017-07-14 10:17:09 0x700004690000  InnoDB: Assertion failure in file /tmp/mariadb-20170712-4418-z03ns4/mariadb-10.2.7/storage/innobase/dict/dict0dict.cc line 1760

InnoDB: Failing assertion: dict_sys->size > 0

InnoDB: We intentionally generate a memory trap.

InnoDB: Submit a detailed bug report to http://bugs.mysql.com.

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: http://dev.mysql.com/doc/refman/5.7/en/forcing-innodb-recovery.html

InnoDB: about forcing recovery.

170714 10:17:09 [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: 10.2.7-MariaDB

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=7

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467207 K  bytes of memory

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

Thread pointer: 0x7fe90f10c408

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...

...skipping...

0   mysqld                              0x000000010e450c33 _Z11mysql_parseP3THDPcjP12Parser_statebb + 649

0   mysqld                              0x000000010e44e862 _Z16dispatch_command19enum_server_commandP3THDPcjbb + 5485

0   mysqld                              0x000000010e44fd64 _Z10do_commandP3THD + 892

0   mysqld                              0x000000010e51f6de _Z24do_handle_one_connectionP7CONNECT + 547

0   mysqld                              0x000000010e51f4ae handle_one_connection + 56

0   libsystem_pthread.dylib             0x00007fffbd98393b _pthread_body + 180

0   libsystem_pthread.dylib             0x00007fffbd983887 _pthread_body + 0

0   libsystem_pthread.dylib             0x00007fffbd98308d thread_start + 13

Trying to get some variables.

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

Query (0x7fe910064e20): is an invalid pointer

Connection ID (thread ID): 35

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.

We think the query pointer is invalid, but we will try to print it anyway.

Query: ALTER TABLE `instances` ADD COLUMN `resurrection_paused` tinyint(1)

#!/bin/bash

set -e

while true; do

mysql < migration_crasher.sql

done

while true;do mysql -sse 'SHOW ENGINE INNODB STATUS\G' | egrep '^Dictionary memory allocated';sleep 0.1;done

...

Dictionary memory allocated 14342

Dictionary memory allocated 9811

Dictionary memory allocated 211

Dictionary memory allocated 20302

Dictionary memory allocated 18446744073709551123

Dictionary memory allocated 3955

Dictionary memory allocated 3334

Dictionary memory allocated 9997

Dictionary memory allocated 18446744073709540819

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (61)