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《mysql InnoDB: Cannot allocate memory for the buffer poolMysql学习》要点：
本文介绍了mysql InnoDB: Cannot allocate memory for the buffer poolMysql学习，希望对您有用。如果有疑问，可以联系我们。
导读：Cannot allocate memory for the buffer pool都说是无法给innodb分配足够的内存,大多数给出的解决的方案是：修改innodb_buffer_pool_size,但是我这个my.cnf里面没有
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?The?InnoDB?memory?heap?is?disabled?
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?Mutexes?and?rw_locks?use?GCC?atomic?builtins?
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?Memory?barrier?is?not?used?
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?Compressed?tables?use?zlib?1.2.3?
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?Using?Linux?native?AIO?
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?Using?CPU?crc32?instructions?
- 2017-09-03?17:38:21?20390?[Note]?InnoDB:?Initializing?buffer?pool,?size?=?128.0M?
- InnoDB:?mmap(137363456?bytes)?failed;?errno?12?
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2017-09-03?17:38:21?20390?[ERROR]?InnoDB:?Cannot?allocate?memory?for?the?buffer?pool?
- 2017-09-03?17:38:21?20390?[ERROR]?Plugin?‘InnoDB’?init?function?returned?error.?
- 2017-09-03?17:38:21?20390?[ERROR]?Plugin?‘InnoDB’?registration?as?a?STORAGE?ENGINE?failed.?
- 2017-09-03?17:38:21?20390?[ERROR]?Unknown/unsupported?storage?engine:?InnoDB?
- 2017-09-03?17:38:21?20390?[ERROR]?Aborting?
- 2017-09-03?17:38:21?20390?[Note]?Binlog?end?
- 2017-09-03?17:38:21?20390?[Note]?Shutting?down?plugin?‘partition’?
- 2017-09-03?17:38:21?20390?[Note]?Shutting?down?plugin?‘PERFORMANCE_SCHEMA’?
其中标为黄色的就比较重要了,百度Cannot allocate memory for the buffer pool都说是无法给innodb分配足够的内存,但是我这个my.cnf里面没有,那就加一个被呗,顺便将这个字段设置成200M,重启mysql发现一样的结果,还是启动不了,去看日志还是一样的问题,还是太大咯?
用free -m看下
total??????? used??????? free????? shared? buff/cache?? available
Mem:??????????? 992???????? 574???????? 159?????????? 0???????? 258???????? 260
Swap:???????????? 0?????????? 0?????????? 0
只有185M的内存了,只能再改小点咯,改成64.
service mysqld restart,终于
Starting MySQL. [ OK ]MYSQL学习 （编辑：李大同）
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