在一次重启linux服务器之后，发现mysql启动不了了，这个是日志
170225 0:46:41 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
170225 0:46:41 [Note] Plugin 'FEDERATED' is disabled.
170225 0:46:41 InnoDB: The InnoDB memory heap is disabled
170225 0:46:41 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170225 0:46:41 InnoDB: Compressed tables use zlib 1.2.8
170225 0:46:41 InnoDB: Using Linux native AIO
170225 0:46:41 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
170225 0:46:41 InnoDB: Completed initialization of buffer pool
170225 0:46:41 InnoDB: Fatal error: cannot allocate memory for the buffer pool
170225 0:46:41 [ERROR] Plugin 'InnoDB' init function returned error.
170225 0:46:41 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
170225 0:46:41 [ERROR] Unknown/unsupported storage engine: InnoDB
170225 0:46:41 [ERROR] Aborting
170225 0:46:41 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
170225 0:46:41 [Note] Plugin 'FEDERATED' is disabled.
170225 0:46:41 InnoDB: The InnoDB memory heap is disabled
170225 0:46:41 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170225 0:46:41 InnoDB: Compressed tables use zlib 1.2.8
170225 0:46:41 InnoDB: Using Linux native AIO
170225 0:46:41 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
170225 0:46:41 InnoDB: Completed initialization of buffer pool
170225 0:46:41 InnoDB: Fatal error: cannot allocate memory for the buffer pool
170225 0:46:41 [ERROR] Plugin 'InnoDB' init function returned error.
170225 0:46:41 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
170225 0:46:41 [ERROR] Unknown/unsupported storage engine: InnoDB
170225 0:46:41 [ERROR] Aborting
http://www.jb51.net/article/84179.htm
Fatal error: cannot allocate memory for the buffer pool
错误原因是内存耗尽，需要设置SwapFile。