mysql5.7.12/13在安装新实例时报错：InnoDB: auto-extending data file ./ibdata1 is of a different size 640 pages (rounded down to MB) than specified in the .cnf file: initial 768 pages, max 0 (relevant if non-zero

.bin/mysqld --initialize-insecure --basedir=xxx --datadir=xxx 

然后 .bin/mysqld_safe --defaults-file=xxx --user=mysql & 抛错：

InnoDB: auto-extending data file ./ibdata1 is of a different size 640 pages (rounded down to MB) than specified in the .cnf file: initial 768 pages, max 0 (relevant if non-zero) pages!

解决办法：.bin/mysqld --initialize-insecure --basedir=xxx --datadir=xxx --innodb-data-file-path=ibdata1:1G:autoextend

原因：配置文件my.cnf中指定的innodb-data-file-path 跟默认的不同

mysql5.7.12/13在安装新实例时报错：InnoDB: auto-extending data file ./ibdata1 is of a different size 640 pages (rounded down to MB) than specified in the .cnf file: initial 768 pages, max 0 (relevant if non-zero

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