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On 23/12/2004, at 5:11 AM, michael@xxxxxxxxxxxxxxxxxx wrote:

I have a customer who upgraded to V5R2 and is having huge 'hang'
problems with a Webfacing app. IBM is involved and more debugging is
being done, but it looks like it happens when client machines (that are
coming from a proxy server) access the Webfaced app at the same time.
One client machine will be able to access the resource (like a drop
down box or a .pdf file) and the other client machine will 'hang'.
After a number of minutes (4-10), the 'hanging' client will be freed up
and can continue.

When the clients are *not* going through a proxy server (set up a little
internal network), there are *no* hangs. There's nothing in jobs logs,
including the Webfaced jobs and the QQFVTSRV or QQFWFSVR logs. Same
version of IE. PC builds are essentially identical. The app ran
successfully for about 1.5 years, and has only had this problem since
the OS was upgraded to V5R2.


Anyone run across this before?

Does this happen at any time during operations or only if a new WebFacing session is being started at that time?


Check the call stack of the WebFacing server jobs. Particularly QQFVTSRV. See if the job is stuck with a call stack something like:

....
        QTVOPNVT
                QPADEVS
                        QTVSEVHD

You may also have trouble displaying the call stack during this time. If you get an empty list press F10 to rebuild.

Regards,
Simon Coulter.
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