22.214.171.124 Error Log File Flushing and Renaming
If you flush the error log using
FLUSH ERROR LOGS,
FLUSH LOGS, or mysqladmin flush-logs, the server closes and reopens any error log file to which it is writing. To rename an error log file, do so manually before flushing. Flushing the logs then opens a new file with the original file name. For example, assuming a log file name of
, to rename the file and create a new one, use the following commands:
mv host_name.err host_name.err-old mysqladmin flush-logs mv host_name.err-old backup-directory
On Windows, use rename rather than mv.
If the location of the error log file is not writable by the server, the log-flushing operation fails to create a new log file. For example, on Linux, the server might write the error log to the
/var/log/mysqld.log file, where the
/var/log directory is owned by
root and is not writable by mysqld. For information about handling this case, see Section 5.4.7, “Server Log Maintenance”.
If the server is not writing to a named error log file, no error log file renaming occurs when the error log is flushed.