MySQL is a commonly used relational database management system nowadays. However, as the amount of data increases and the system runs, MySQL slowly slows down. At this time, it is necessary to clear the logs in MySQL to improve the performance of the database. performance.
There are four main logs in MySQL: error log, slow query log, binary log, and transaction log. Among these four types, if you want to clear it, you need to pay attention to some details. Before proceeding, it is best to make a backup. So let's take a look at the specific operations of deleting each log in MySQL.
1. Delete the error log
The MySQL error log is mainly used to record information when errors occur. Viewing the error log helps us understand the problems that occur during the operation of the system. When the log file is too large and needs to be cleared, you can do the following:
1.1 Check the path of the error log
Enter the command on the command line: SHOW VARIABLES LIKE '%log_error%';
will get the following results:
Value | |
---|---|
/var/log/mysql/error.log |
Value | |
---|---|
ON | |
/var/log/mysql/mysql-slow.log |
binlog_format=mixed #Format
server-id=1 #MySQL server ID, unique
Position | Binlog_Do_DB | Binlog_Ignore_DB | |
---|---|---|---|
107 |
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