Description:
Version: '5.6.30' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Community Server (GPL)
2016-05-03 09:32:18 1 [Warning] 'proxies_priv' entry '@ root@7019a34b5158' ignored in --skip-name-resolve mode.
2016-05-03 09:49:39 7f6aedffb700 InnoDB: Assertion failure in thread 140097236219648 in file pars0pars.cc line 865
InnoDB: Failing assertion: sym_node->table != NULL
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/5.6/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
09:49:39 UTC - 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.
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.
key_buffer_size=8388608
read_buffer_size=131072
max_used_connections=152
max_threads=151
thread_count=1
connection_count=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68108 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x0
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 = 0 thread_stack 0x40000
mysqld(my_print_stacktrace+0x2c)[0x8c0ebc]
mysqld(handle_fatal_signal+0x481)[0x65f5d1]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xf8d0)[0x7f6b1c8648d0]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37)[0x7f6b1b25a067]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x148)[0x7f6b1b25b448]
mysqld[0x9d086d]
mysqld(_Z7yyparsev+0x131b)[0xafdf5b]
mysqld[0x9d1eef]
mysqld[0xafa6e7]
mysqld[0xae7302]
mysqld[0xae79d8]
mysqld(_Z23fts_optimize_sync_tablem+0x3d)[0xaf305d]
mysqld[0xaf3369]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x80a4)[0x7f6b1c85d0a4]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f6b1b30d87d]
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.
How to repeat:
Query executed:
----------------
mysql> ALTER TABLE `table_name` MODIFY `field_name` date NULL;
ERROR 2013 (HY000): Lost connection to MySQL server during query
Table has 3000 rows.
