mysql 运行一段时间就自动停止了，请教一下大家

[isphone]

2017-01-22 22:37:22 0 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.6.29) starting as process 2097 ...
2017-01-22 22:37:22 2097 [Note] Plugin 'FEDERATED' is disabled.
2017-01-22 22:37:22 2097 [Note] InnoDB: Using atomics to ref count buffer pool pages
2017-01-22 22:37:22 2097 [Note] InnoDB: The InnoDB memory heap is disabled
2017-01-22 22:37:22 2097 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-01-22 22:37:22 2097 [Note] InnoDB: Memory barrier is not used
2017-01-22 22:37:22 2097 [Note] InnoDB: Compressed tables use zlib 1.2.3
2017-01-22 22:37:22 2097 [Note] InnoDB: Using CPU crc32 instructions
2017-01-22 22:37:22 2097 [Note] InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
2017-01-22 22:37:22 2097 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-01-22 22:37:22 2097 [ERROR] Plugin 'InnoDB' init function returned error.
2017-01-22 22:37:22 2097 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-01-22 22:37:22 2097 [ERROR] Unknown/unsupported storage engine: InnoDB
2017-01-22 22:37:22 2097 [ERROR] Aborting

2017-01-22 22:37:22 2097 [Note] Binlog end
上面是日志，请教是什么原因？谢谢

[gamesbain]

应该是内存不够，我也遇到过同样的问题

[jarlyyn]

google 搜 InnoDB: mmap(137363456 bytes) failed; errno 12 第一条。

[isphone]

@gamesbain 内存好像够哦，没有提示说内存不够

[jarlyyn]

@isphone

InnoDB: Cannot allocate memory for the buffer pool

[xiuc001]

内存不够吧

[cyr1l]

有可能是某些目录的权限问题，用 sudo 运行试试？

[Infernalzero]

方案 1 ：系统加内存
方案 2 ：配置文件里 InnoDB buffer pool size 改小