Issue of InnoDB:Error:log file./ib_logfile0 is of different size 0 5242880 bytes in Mysql startup _mysql

If your profile uses a similar my-innodb-heavy-4g.cnf as a configuration file.
MySQL can start normally, but InnoDB tables are not available
In the error log you will see the following output:

InnoDB:Error:log file./ib_logfile0 is of different size 0 5242880 bytes

The thing to do now is to back up the original InnoDB Ib_logfilex to a directory, and then delete the original file, restart MySQL.
You will see that the ib_logfile* size becomes the size specified in your configuration file.
My-innodb-heavy-4g.cnf Words (log file size is 256m:innodb_log_file_size = 256M)
You'll see a lot of 268435456 sizes of files.