Linux Primary HUB probes fail to start after a system restart - Resource temporarily unavailable

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Environment:
UIM 9.02 on Linux

Problem:
All probes are not starting after the system was rebooted
Probes startup fine through port 48018 and the remaining probes fail

Example of two error in the discovery_server log
stderr: Exception in thread "main" java.lang.OutofMemoryError: unable to create new activate thread
Max restarts reached for probe discovery_server  (command = <startup java>)
Or
Probe 'discovery_server FAILEd to start (fork) (command = <startup java> error =  (0) Resource temporarily unavailable

Example of error in the ppm.log
Probe 'ppm' FAILEd to start (fork) (command = <startup java> error =  (0) Resource temporarily unavailable

Environment

Release : 9.0.2

Component : UIM - INSTALL

Resolution

Configured the /etc/systemd/system.conf file with DefaultTasksMax=infinity followed by a 'systemctl daemon-reload' command

The DefaultTasksMax=infinity parameter needs to be set when there are a large number of threads running