Mysql Purge Binary Logs

• Mysql Binlog Purge

Hello Every one,I have a my binary log files being logged at '/var/lib/mysql/' and it is occupying almost '110 GB' of web space.I need to know, Can i go ahead and clear this off? For the binary log, you can set the expirelogsdays system variable to expire binary log files automatically after a given number of days (see Section 5.1.4, 'Server System Variables'). If you are using replication, you should set the variable no lower than the maximum number of days your slaves might lag behind the master.In my case - I am making the assumption that I will repair and/or restore my master and/or slaves before 1 week.

Mysql Binlog Purge

Purge binary logs before ‘2018-04-20 12:00:00’; Master/Slave Backups One very useful feature that using MySQL’s Binary logs is the ability to to set up master-slave replication. Will purge all the binary logs before the date. Other method is to purge log file on “name” attribute of the log file. Example: mysql PURGE BINARY LOGS TO 'ns30XXXX-bin.009836'; But sometime you can have bigger problem: no space left on device and you can’t free space with other method. In this case, the only solution is to drop.

Prior to MySQL 5.0.60, PURGE BINARY LOGS TO and PURGE BINARY LOGS BEFORE did not behave in the same way (and neither one behaved correctly) when binary log files listed in the.index file had been removed from the system by some other means (such as using rm on Linux).

Therefore:# grep expire /etc/my.cnfexpirelogsdays=7I set my logs to delete themselves after 7 days.-Michael.

I generally setup binary logs on a MySQL server where the data isn’t being replicated and I’m using daily mysql-dumps to backup the data. This allows me to recover the database to a specific point in time. However sometimes the binary logs can become very large if there are lots of changes occuring to the data. Then you can suddenly need to delete / purge / prune the mysql binary log files.

Here is how I did it:1 – Examine the binary logs to decide up to where you want to delete to: ls -la /var/lib/mysql/2 – Here the traffic to one server had suddenly increased and the server had been logging 101MB every few minutes for several days.-rw-rw- 1 mysql mysql 104871967 Aug 24 00:01 BINLOG.015687-rw-rw- 1 mysql mysql 104885618 Aug 24 00:04 BINLOG.015688-rw-rw- 1 mysql mysql 104866713 Aug 24 00:06 BINLOG.015689.3 – You can either prune by date or by file. For simplicity, I pruned by file. You need to do this from the MySQL command line.I connected to mysql and ran the following command: PURGE BINARY LOGS TO 'BINLOG.015689';But you could prune by date: PURGE BINARY LOGS BEFORE '2013-08-24 00:06:00';You can read the.