User Interface hangs on login screen when large (over 1GB) .hprof files exist in UI/temp folder

Document ID : KB000087924
Last Modified Date : 14/04/2018
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Issue:
Error Message :
N/A

After clicking the ucdj.exe to open the UI, the "Automic" splash screen comes up and hangs. The login screen that should follow may or may not load. If it does load, it takes various amounts of time. 

Behavior is coupled with the presence of large (over 1GB) .hprof files in the users' UI/temp folder, seemingly generated at random.

Issue has only been observed as occurring after upgrading all components from 11.1 to 11.2. 



 
Environment:
OS Version: N/A
Cause:
Root Cause: An internal cache grows too large, which causes memory shortage and generates .hprof files.
Resolution:
Update to a fix version listed below or a newer version if available.

Fix Status: Released

Fix Version(s):
Component(s): AE Server and Initialdata

Automation Engine 12.0.2 - Available
Automation Engine 11.2.4 - Available
Additional Information:
Workaround :
1) Provision a recurring Windows job with a working directory of .../UI/temp and execute the following command from the Process tab: del *.hprof This will delete any .hprof files that are in that directory. This will keep that directory clear and the issue should not occur again.

OR

2) Manually delete the files from the folder.