As many of you know we have been dealing with an issue for the last couple of weeks where one of our servers (cpanel1) has been crashing. We have been investigating the issue and have not come up with any definitive issues but today I cam across a graph that may have some clews to the issue. The attached graph shows the connection times from our monitoring software to cpanel1 for the last month. As you can see on 6/16/09 the connection times increased considerably.

The one thing that corresponds to that date is a memory upgrade that was performed on 6/16/09 on cPanel1. We just pulled out the memory suspecting that it may be bad memory. We will continue to monitor the server for the next few days to see if this was the root cause of the issues.