iPrint on OES2018 with PaperCut stops printing and no access to the PaperCut admin console

Document ID:7023128
Creation Date:27-Jun-2018
Modified Date:27-Jun-2018
- Micro Focus Products:
  Open Enterprise Server

Environment

Open Enterprise Server 2018 (OES 2018) Linux

iPrint

PaperCut

Situation

After upgrading to OES2018, the iPrint and PaperCut environment becomes non-responsive after many users start using the system. Users are unable to print and the PaperCut admin console is not accessible.

Resolution

Increase the DefaultTasksMax setting in the /etc/systemd/system.conf file.

For more information concerning this setting refer to the SLES documentation.

Cause

Insufficient threads for the iPrint and PaperCut processes.

Additional Information

In the server.log file you may see messages like:

java.lang.OutOfMemoryError: unable to create new native thread
WARN QueuedThreadPool:661 - Unexpected thread death:....................
ERROR AppServer:597 - Exception in thread "http-536". unable to create new native thread [http-536]