Forum SQL issue with 4.0.3 that has only just started occuring
 

Since upgrading from 4.0.2 to 4.0.3 we are experiencing a bug with MySQL. I do not know if this bug has been around longer because we used to run single server

The bug basically means that our two server (1 web, 1 x sql)'s internal nic's are constantly at 100mbps of SQL traffic.

I've tried to
- move attachments to disk
- disable archive
- disable searching

none of this fixes it. As soon as I turn the forum off, the issue goes away.

Any thoughts, suggestions?