mysql启动报InnoDB: mmap(137363456 bytes) failed; errno 12这类的错误

柔光的暖阳◎ 2022-03-09 12:00 98阅读 0赞

详细报错如下

InnoDB: mmap(137363456 bytes) failed; errno 12
    2019-03-13 09:06:25 79498 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
    2019-03-13 09:06:25 79498 [ERROR] Plugin 'InnoDB' init function returned error.
    2019-03-13 09:06:25 79498 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
    2019-03-13 09:06:25 79498 [ERROR] Unknown/unsupported storage engine: InnoDB
    2019-03-13 09:06:25 79498 [ERROR] Aborting

网上也收集了很多文章都不能解决这个问题，一直看到这篇文章刚好解决了这个问题，收藏一下‘

[https://www.cnblogs.com/olinux/p/5144205.html][https_www.cnblogs.com_olinux_p_5144205.html]

解决方法如下：

查看内存

$ free
                 total       used       free     shared    buffers     cached
    Mem:        608476     565044      43432          0       1284      53996
    -/+ buffers/cache:     509764      98712
    Swap:            0          0          0

明显的swap问题。适当增加swap

$ sudo dd if=/dev/zero of=/swapfile bs=1M count=1024 #增加1G的SWAP进去
    $ sudo mkswap /swapfile
    $ sudo swapon /swapfile
    $ free
                 total       used       free     shared    buffers     cached
    Mem:        608476     601432       7044          0        824      88752
    -/+ buffers/cache:     511856      96620
    Swap:      1048572          0    1048572

然后启动完美解决

[https_www.cnblogs.com_olinux_p_5144205.html]: https://www.cnblogs.com/olinux/p/5144205.html