Description:
MySQL instance periodically crashes with the following logger in the error log:
11:09:57 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.
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=77
max_threads=151
thread_count=37
connection_count=37
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 338554 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x20de4d0
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 = 7fa8b911fd98 thread_stack 0x40000
/usr/libexec/mysqld(my_print_stacktrace+0x2e)[0x79256e]
/usr/libexec/mysqld(handle_fatal_signal+0x493)[0x67a9e3]
/lib64/libpthread.so.0[0x3ef9e0f710]
/usr/libexec/mysqld[0x7cd3dd]
/usr/libexec/mysqld[0x7bae49]
/usr/libexec/mysqld[0x7a5152]
/usr/libexec/mysqld(_ZN7handler13ha_update_rowEPKhPh+0x76)[0x680066]
/usr/libexec/mysqld(_Z12mysql_updateP3THDP10TABLE_LISTR4ListI4ItemES6_PS4_jP8st_ordery15enum_duplicatesbPySB_+0x10f3)[0x5f3853]
/usr/libexec/mysqld(_Z21mysql_execute_commandP3THD+0x2384)[0x586ca4]
/usr/libexec/mysqld(_ZN18Prepared_statement7executeEP6Stringb+0x353)[0x599033]
/usr/libexec/mysqld(_ZN18Prepared_statement12execute_loopEP6StringbPhS2_+0x98)[0x5991b8]
/usr/libexec/mysqld(_Z19mysqld_stmt_executeP3THDPcj+0x12c)[0x599f2c]
/usr/libexec/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0xb2e)[0x58a95e]
/usr/libexec/mysqld(_Z24do_handle_one_connectionP3THD+0xda)[0x61f68a]
/usr/libexec/mysqld(handle_one_connection+0x5b)[0x61f7cb]
/lib64/libpthread.so.0[0x3ef9e079d1]
/lib64/libc.so.6(clone+0x6d)[0x3ef9ae8b7d]
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7fa7d4addb08): is an invalid pointer
Connection ID (thread ID): 54895
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.
140918 13:09:57 mysqld_safe Number of processes running now: 0
140918 13:09:57 mysqld_safe mysqld restarted
140918 13:09:57 [Note] libgovernor.so not found
140918 13:09:57 [Note] Plugin 'FEDERATED' is disabled.
140918 13:09:57 InnoDB: The InnoDB memory heap is disabled
140918 13:09:57 InnoDB: Mutexes and rw_locks use GCC atomic builtins
140918 13:09:57 InnoDB: Compressed tables use zlib 1.2.3
140918 13:09:57 InnoDB: Using Linux native AIO
140918 13:09:57 InnoDB: Initializing buffer pool, size = 128.0M
140918 13:09:57 InnoDB: Completed initialization of buffer pool
140918 13:09:57 InnoDB: highest supported file format is Barracuda.
InnoDB: Log scan progressed past the checkpoint lsn 158198982960
140918 13:09:57 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
InnoDB: Doing recovery: scanned up to log sequence number 158198990395
140918 13:09:57 InnoDB: Starting an apply batch of log records to the database...
InnoDB: Progress in percents: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
InnoDB: Apply batch completed
140918 13:09:57 InnoDB: Waiting for the background threads to start
140918 13:09:58 InnoDB: 5.5.37 started; log sequence number 158198990395
140918 13:09:58 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
140918 13:09:58 [Note] - '127.0.0.1' resolves to '127.0.0.1';
140918 13:09:58 [Note] Server socket created on IP: '127.0.0.1'.
140918 13:09:59 [Note] Event Scheduler: Loaded 0 events
140918 13:09:59 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.5.37-cll-lve' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL) by Atomicorp
OS Info:
-bash-4.1$ uname -a
Linux 2.6.32-431.17.1.el6.x86_64 #1 SMP Wed May 7 23:32:49 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
-bash-4.1$ free -mt
total used free shared buffers cached
Mem: 32102 31053 1048 0 302 28000
-/+ buffers/cache: 2751 29350
Swap: 3967 33 3934
Total: 36070 31086 4983
MySQL Configuration:
-bash-4.1$ cat /etc/my.cnf
[mysqld]
bind-address=127.0.0.1
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
max_allowed_packet = 64M
wait_timeout = 6000
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
old-passwords = 1
[mysqldump]
max_allowed_packet = 64M
mysql> show variables like '%version%';
+-------------------------+-------------------------------------------+
| Variable_name | Value |
+-------------------------+-------------------------------------------+
| innodb_version | 5.5.37 |
| protocol_version | 10 |
| slave_type_conversions | |
| version | 5.5.37-cll-lve |
| version_comment | MySQL Community Server (GPL) by Atomicorp |
| version_compile_machine | x86_64 |
| version_compile_os | Linux |
+-------------------------+-------------------------------------------+
7 rows in set (0.00 sec)
MySQL Processes:
-bash-4.1$ ps -ef | grep mysql
root 1780 1 0 Aug28 ? 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --socket=/var/lib/mysql/mysql.sock --pid-file=/var/run/mysqld/mysqld.pid --basedir=/usr --user=mysql
mysql 47015 1780 37 Sep18 ? 4-03:23:17 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/lib/mysql/mysql.sock
MySQL packages:
-bash-4.1$ rpm -qa | grep -i mysql
mysql-connector-odbc-5.1.5r1144-7.el6.x86_64
MySQL-python-1.2.3-0.3.c1.1.el6.x86_64
mysql-libs-5.5.37-22.el6.art.x86_64
mysql-server-5.5.37-22.el6.art.x86_64
mysql-5.5.37-22.el6.art.x86_64
perl-DBD-MySQL-4.013-3.el6.x86_64
php-mysql-5.4.29-35.el6.art.x86_64
mysqlclient16-5.1.59-2.el6.art.x86_64
How to repeat:
Not known at the moment.