Slave Binary Log Enabled Question

[Tony Trimboli]

I've recently inherited a MySQL installation that has been setup with simple Master/Slave replication. The binary log has been enabled on the slave and the person that did it of course is no longer with the company so I can't ask him why he did that.

The slave does not replicate down to another slave and there is no purge strategy implemented for the binary logs, so of course I'm seeing disk space issues. At least the relay logs are being purged.

From a best practices standpoint, does having binary logs enabled in this scenario make sense? Is there a practical use for those logs on the slave?

I can't think of a valid reason to have the logs on the slave. Seems that if you were in a restore from backup scenario, it would be better to start fresh with a snapshot from the master than to try to use those logs.