Problem

Maven build fail with the following error:

/opt/rh/rh-maven33/root/bin/mvn: fork: retry: No child processes

Diagnosis

Running the same maven command manually in the agent's machine works fine.

There is a difference in the environment variables MAVEN2_HOME and/or M2_HOME between the build log and agent's machine.

Resolution

Configure Maven executable path to be /opt/rh/rh-maven33/root/usr/share/maven at Administration > Build Resources > Executables