我在Amazon EC2上安装了Centos。在Centos上我也安装了apache和mysql。通过提供此消息，Mysql服务器停止运行
160128 17:26:45 [Warning] IP address 'xx.xx.xx.xx' could not be resolved: Name or service not known
160129 02:29:52 mysqld_safe Number of processes running now: 0
160129 02:29:52 mysqld_safe mysqld restarted
160129 2:30:07 [Note] /usr/libexec/mysql55/mysqld (mysqld 5.5.45) starting as process 20398 ...
160129 2:30:07 [Note] Plugin 'FEDERATED' is disabled.
160129 2:30:07 InnoDB: The InnoDB memory heap is disabled
160129 2:30:07 InnoDB: Mutexes and rw_locks use GCC atomic builtins
160129 2:30:07 InnoDB: Compressed tables use zlib 1.2.8
160129 2:30:07 InnoDB: Using Linux native AIO
160129 2:30:10 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
160129 2:30:10 InnoDB: Completed initialization of buffer pool
160129 2:30:10 InnoDB: Fatal error: cannot allocate memory for the buffer pool
160129 2:30:10 [ERROR] Plugin 'InnoDB' init function returned error.
160129 2:30:10 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
160129 2:30:10 [ERROR] Unknown/unsupported storage engine: InnoDB
160129 2:30:10 [ERROR] Aborting
160129 2:30:10 [Note] /usr/libexec/mysql55/mysqld: Shutdown complete
160129 02:30:10 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
谁能告诉我最新的确切问题。感谢