We sometimes see out-of-memory problems with iACS 5250 start-up while running on Windows Terminal Server. It's always caused by the Windows VM starving for RAM. Being a Java app, iACS has to start a JVM for each Windows desktop session.

HTH



-----Original Message-----
From: Smith, Mike [mailto:Mike_Smith@xxxxxxxxxxxxxxxx]
Sent: Wednesday, January 15, 2020 3:24 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Access Client Solutions - Locking

We are using ACS 1.1.8.2 in a Citrix Xen Virtual Desktop Environment.

* Citrix XenDesktop 7.15 LTSB using Machine Creation Services
* Hypervisor: VMWare ESXi 6.5
* VMWare Tools version (current): 10305
* OS: Windows 10 LTSC (Current on Windows Critical and Security Updates)
* RAM: 8GB
* DISK: 70GB
* Processor: 2 CPU
* Java version: 8.241 (as of today) previously 8.31


We are starting to have a number of users when they start up a 5250 session from ACS, the Session will freeze/lockup. Looking into it at this point we are seeing very high memory usage If we can get the session closed and then reopen it, sometimes it clears itself up and other times it doesn't.

Any having any similar issues? Things we can check or do to remediate?

Thanks

MIke


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