mysql 每几个小时就重启，求指点

V2EX = way to explore

V2EX 是一个关于分享和探索的地方

现在注册

已注册用户请登录

这是一个创建于 3505 天前的主题，其中的信息可能已经有所发展或是发生改变。

mysql 版本是5.1.60

err log如下
150524 8:55:44 - 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=16777216
read_buffer_size=262144
max_used_connections=5
max_threads=151
threads_connected=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 133912 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x1d885d0
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...
stackbottom = 0x7f53d14f3cf0 thread_stack 0x40000
[0x6895a4]
[0x4bdd6b]
[0x62b440]
/lib/x86_64-linux-gnu/libc.so.6(get_nprocs+0x10d) [0x7f53d2e2a4ed]
/lib/x86_64-linux-gnu/libc.so.6(+0x7f13e) [0x7f53d2db713e]
/lib/x86_64-linux-gnu/libc.so.6(_libc_malloc+0x1ab) [0x7f53d2dbb0fb]
/lib/x86_64-linux-gnu/libc.so.6(+0x6f20b) [0x7f53d2da720b]
/lib/x86_64-linux-gnu/libnss_files.so.2(_nss_files_gethostbyaddr_r+0x1bb) [0x7f53d260050b]
[0x7ad740]
[0x7ad4c6]
[0x4c49dc]
[0x4c5f00]
[0x4c670f]
[0x62763a]
[0x7a9b89]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query ((nil)): is an invalid pointer
Connection ID (thread ID): 630
Status: NOT_KILLED

mysqld

Variables

invalid

7 条回复 • 2015-08-22 15:32:37 +08:00

sanddudu

2015-05-24 14:22:51 +08:00

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.

这里不是写着么

nower

2015-05-24 15:29:19 +08:00

@sanddudu 求详解。从堆栈信息看，是在函数_nss_files_gethostbyaddr_r里面，但是进一步怎么定位问题所在呢？

shakespark

2015-05-24 16:28:15 +08:00

我百度了一下/lib/x86_64-linux-gnu/libnss_files.so.2(_nss_files_gethostbyaddr_r
看到这个帖子
http://www.oschina.net/question/100161_107237

霸气千秋问题解决了，mysql配置文件缺少一个thread_cache_size=8 导致Threads_created不断增大，现在数据库已经正常运行两个消失了 (2年前)

nower

2015-05-24 21:53:16 +08:00

@shakespark 谢谢，按照帖子的方法修改了配置，问题仍然存在，sigh

ryd994

2015-05-25 07:54:47 +08:00 via Android

你用的什么发行版，MySQL来源是哪里？

shakespark

2015-05-25 08:50:23 +08:00

如果真的是内存问题，那么你可以开top观察一下mysql占用的内存是否不断增大，超过了说明中说的130M内存。如果是这样的话，建议重新弄一份干净的配置文件再试，或者换别的mysql版本

realpg

2015-08-22 15:32:37 +08:00

重新编译一份 MYSQL
重新在 MYSQL 给的 my.cnf 基础上修改配置