Coldfusion intermittently running slowly

[IanBagnall5]

We recently migrated several coldfusion websites from

Windows server 2003 to 2008 and IIS 6 to IIS 7.

We are running Coldfusion 9 enterprise  64 bit in both environments.

The first couple of days ran succesfully, but then we sufferred intermittent slow responses from the websites.

The only errors reported were http 503 back from IIS and some CFLOOP and CFHTTP timeouts in our exception handler.

We have tried turning off all CF schedules and increased the queue length property on the Application Pools

The CFLOOP which is timing out looks as follows:

   <cfloop collection="#request.session#" item="local.ii">

    <cfset session[local.ii] = request.session[local.ii] />

   </cfloop>

Of course, this timeout may be a symptom of the problem rather than a cause.

Many Thanks,

Ian Bagnall.

[carl type3]

Hi Ian,

Is the CF9 Enterprise multiserver or server configuration type installation?

Think it would be helpful to know if there are any interesting warnings or errors in logs when the intermittent slowness occurs. Check log files at the correct time stamp that matches slow time in Jrun4\logs (multiserver) or CF9\runtime\logs (server).

HTH, Carl.