Can I delete MySQL log?
If the log files are large, it won’t reduce them. If you’re on Linux, you can use mv to rename log files while they’re in use, and then after FLUSH LOGS, you know that MySQL is writing to a new, small file, and you can remove the old big files. Binary logs are different. To eliminate old binlogs, use PURGE BINARY LOGS.
How do I change InnoDB variables?
Delete the old log files from the log file directory, edit my. cnf to change the log file configuration, and start the MySQL server again. mysqld sees that no InnoDB log files exist at startup and creates new ones.
How to safely change MySQL InnoDB variable’innodsb _ buffer _ pool _ size?
Start the MySQL server again. If InnoDB detects that the innodb_log_file_size differs from the redo log file size, it will write a log checkpoint, close and remove the old log files, create new log files at the requested size, and open the new log files. innodb_buffer_pool_size — simply change my.cnf ( my.ini) and restart mysqld.
Why is there no InnoDB log file in MySQL?
Start the MySQL server again. mysqld sees that no InnoDB log files exist at startup and creates new ones. The innodb_fast_shutdown setting is no longer relevant when changing the number or the size of InnoDB log files.
How does InnoDB check the redo log size?
If InnoDB detects that the innodb_log_file_size differs from the redo log file size, it writes a log checkpoint, closes and removes the old log files, creates new log files at the requested size, and opens the new log files. InnoDB, like any other ACID -compliant database engine, flushes the redo log of a transaction before it is committed.
How to increase the number of log files in MySQL?
To increase the number of log files, configure innodb_log_files_in_group. Start the MySQL server again. If InnoDB detects that the innodb_log_file_size differs from the redo log file size, it will write a log checkpoint, close and remove the old log files, create new log files at the requested size, and open the new log files.