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查看Mysql日志
InnoDB: Initializing buffer pool, size = 128.0M InnoDB: mmap(137363456 bytes) failed; errno 12 InnoDB: Completed initialization of buffer pool InnoDB: 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 cached Mem: 1152 464 687 0 8 92 -/+ buffers/cache: 363 789 Swap: 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 cached Mem: 608476 601432 7044 0 824 88752 -/+ buffers/cache: 511856 96620 Swap: 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...
出自：http://www.cnblogs.com/olinux/p/5144205.html
MySQL测试环境遇到 mmap(xxx bytes) failed; errno 12解决方法
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原文地址：http://www.cnblogs.com/losbyday/p/5827666.html
