How to change InnoDB _ log _ file _ size value in MySQL?
Open the MySQL configuration file my.cnf in a text editor. In this example, we are using the vi editor: Note: If the innodb_log_file_size directive does not exist in the file, add it manually under the [mysqld] section. Move the redo log files ib_logfile0 and ib_logfile1 to another directory.
How does MySQL use logs for data durability?
Like many database management systems, MySQL uses logs to achieve data durability (when using the default InnoDB storage engine). This ensures that when a transaction is committed, data is not lost in the event of crash or power loss. MySQL’s InnoDB storage engine uses a fixed size (circular) Redo log space.
Which is the best redo space size for InnoDB?
Configuring InnoDB’s Redo space size is one of the most important configuration options for write-intensive workloads. However, it comes with trade-offs. The more Redo space you have configured, the better InnoDB can optimize write IO.
Where to move redo log files in MySQL?
Move the redo log files ib_logfile0 and ib_logfile1 to another directory. In this example, the files are moved to /root: Connect to a Plesk server via RDP.
What is the default file size for InnoDB?
The default is 2×5… Your server might be actually using a different configuration file (see here for possible locations). for posterity, the default for innodb_log_file_size is 48mb, not 2×5. This was changed in v5.6.8.
Why does MySQL not start when I change the log file size?
If you change the log file size, you need to remove the old log files. Innodb will not start successfully if the existing files do not match the specified size in the config file. If you move them elsewhere, innodb will create new transaction log files of the correct size when it starts.
How big should MySQL blob file size be?
Anything else to worry about 6169.8 GB / 650k rows = about 10 MB per row on average This is a serious problem per se if you intend to use your database in a transactional, multi-user situation. Consider storing your BLOB ‘s as files outside of the database.