Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Wed, 13 Oct 2010 11:14:54 -0500

Folks,

We are having trouble with a Windows IOC at NSLS.  Here are the
symptoms:

- The IOC is running fine

- The PC running the IOC has 2 local CA clients connected to the IOC,
medm and IDL.  Occassionally (1-2 times per day) one of these clients
loses its connection to the IOC.  Medm screens go white, IDL says it
cannot find a PV, etc.  This happens when the client was running fine.
It typically only happens to one or the other client, not to both.

- Restarting the client fixes the problem.

- The same 2 clients are running on another PC connected to the same
IOC.  Those clients are always fine, they do not lose connection when a
client on the PC with the IOC does.

- Looking at the resources on the Windows machine (CPU, virtual and
physical memory usage) does not indicate any problems.

How do we go about figuring out what is wrong?

Thanks,
Mark

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System