Recently, I found that our secondary server's MySQL partition was starting to get full. After running du -h --max-depth=1 several times recursively, I found that the source was the MySQL binary logs. As it turns out, MySQL comes with a very handy command for purging all log files. If you run :
show master logs
, you'll be given a list of the logs that the MySQL server is currently using. You can clear out old log files (some of which can be very large) by running the command
purge master logs to 'log-name-here -from-display'
. This will remove the old log files from the hard disk and save up some potentially much needed space.
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