MySQL innodb 버퍼 할당 에러

vi /ect/mysql/my.cnf

# innodb 설정 값 중 메모리량을 적절하게 변경

innodb_buffer_pool_size           = 5120M
innodb_data_file_path             = ibdata1:1000M:autoextend

​

 

 

2018-07-13 14:00:43 21419 [Note] InnoDB: Initializing buffer pool, size = 5.0G
InnoDB: mmap(686817280 bytes) failed; errno 12
2018-07-13 14:00:44 21419 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2018-07-13 14:00:44 21419 [ERROR] Plugin 'InnoDB' init function returned error.
2018-07-13 14:00:44 21419 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2018-07-13 14:00:44 21419 [ERROR] Unknown/unsupported storage engine: InnoDB
2018-07-13 14:00:44 21419 [ERROR] Aborting

총 메모리량이 적어서 에러가 발생