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Log and status files
In MySQL, log and status files are used to record various events and activities that occur within the database.
The error log file contains information about errors and warnings that occur during the operation of the MySQL server. This file is useful for troubleshooting issues that arise within the database. By default, the error log file is named “hostname.err” and is located in the MySQL data directory.
The general query log file records all queries that are executed on the MySQL server. This log can be used for performance analysis and to identify potential security issues. The general query log file can be enabled or disabled using the general_log variable.
The binary log file contains a record of all data modifications that occur on the MySQL server. This file is useful for replication, backup, and recovery operations. The binary log file can be enabled or disabled using the log_bin variable.
The slow query log file contains a record of queries that take longer than a specified amount of time to execute. This log can be used to identify and optimize slow queries. The slow query log file can be enabled or disabled using the slow_query_log variable.
The status file contains information about the current status of the MySQL server, including uptime, current connections, and memory usage. This file can be accessed using the SHOW STATUS command.
Overall, log and status files provide important information for monitoring and troubleshooting MySQL databases, and are essential for ensuring the smooth operation of the database server.
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