查看Mysql日志
InnoDB: Initializing buffer pool, size = 128.0MInnoDB: mmap(137363456 bytes) failed; errno 12InnoDB: Completed initialization of buffer poolInnoDB: Fatal error: cannot allocate memory for the buffer pool[ERROR] Plugin 'InnoDB' init function returned error.[ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.[ERROR] Unknown/unsupported storage engine: InnoDB[ERROR] Aborting
缓存太少了
[root@dep5 ~]# free -m total used free shared buffers cachedMem: 1152 464 687 0 8 92-/+ buffers/cache: 363 789Swap: 199 194 5
增加缓存
$ dd if=/dev/zero of=/swapfile bs=1M count=1024 #增加1G的SWAP进去$ mkswap /swapfile$ swapon /swapfile$ free total used free shared buffers cachedMem: 608476 601432 7044 0 824 88752-/+ buffers/cache: 511856 96620Swap: 1048572 0 1048572
此处不建议将swapon 写到/etc/fstab这里,直接写到/etc.rc.local中更为稳妥
启动解决...
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