Server crashed without specific reason [test_quick_select]
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Percona Server moved to https://jira.percona.com/projects/PS |
Incomplete
|
Undecided
|
Unassigned | ||
5.1 |
Won't Fix
|
Undecided
|
Unassigned | ||
5.5 |
Expired
|
High
|
Unassigned | ||
5.6 |
Incomplete
|
Undecided
|
Unassigned | ||
Ubuntu |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Today one of our db slaves crashed after a uptime of > 90 days.
The below stack trace was in the db error log.
I will also append some more information gathered from the server itself (status, variables) and form external tools.
Server-Log:
12:19:24 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.
Please help us make Percona Server better by reporting any
bugs at http://
key_buffer_
read_buffer_
max_used_
max_threads=3072
thread_count=33
connection_count=33
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x7faf701912c0
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 = 7faf46724e58 thread_stack 0x40000
/usr/sbin/
/usr/sbin/
/lib/libpthread
/lib/libc.
/lib/libc.
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/lib/libpthread
/lib/libc.
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7fafb5d1a480): is an invalid pointer
Connection ID (thread ID): 439598602
Status: NOT_KILLED
You may download the Percona Server operations manual by visiting
http://
in the manual which will help you identify the cause of the crash.
All those attached files were created at 12:00 UTC (19 minutes before the server crashed).
Finally we have some extracts from the current ps and top output at 12:00 UTC:
> cat ps.dbslave03 file=/local/ mysql/dbslave03 /my.cnf --basedir=/usr --datadir= /local/ mysql/dbslave03 /data --plugin- dir=/usr/ lib/mysql/ plugin --user=mysql --skip-name-resolve --log-error= /local/ mysql/dbslave03 /data/dbslave03 .intern. err --open- files-limit= 7680 --pid-file= /local/ mysql/dbslave03 /mysqld_ net.pid --socket= /local/ mysql/dbslave03 /mysql_ net.sock --port=3306 mysqld_ safe --defaults- file=/local/ mysql/dbslave03 /my.cnf --datadir= /local/ mysql/dbslave03 /data --pid-file= /local/ mysql/dbslave03 /mysqld_ net.pid --log-error= /local/ mysql/dbslave03 /data/dbslave03 .intern. err --skip-name-resolve
40981104 39682272 /usr/sbin/mysqld --defaults-
4096 680 /bin/sh /usr/bin/
> cat top.dbslave03
top - 12:01:36 up 195 days, 1:45, 0 users, load average: 5.10, 4.54, 4.50
Tasks: 650 total, 1 running, 649 sleeping, 0 stopped, 0 zombie
Cpu(s): 6.6%us, 1.4%sy, 0.0%ni, 88.5%id, 3.1%wa, 0.0%hi, 0.4%si, 0.0%st
Mem: 66095704k total, 63557080k used, 2538624k free, 728048k buffers
Swap: 0k total, 0k used, 0k free, 9373856k cached
PID USER PR NI VIRT RES SWAP SHR S %CPU %MEM TIME+ COMMAND
20933 mysql 20 0 39.1g 37g 1.2g 5636 S 0 60.0 35780:42 /usr/sbin/mysql
I hope this information is useful for you.