In our logfile there is a block of messages that appear every second from 15:39 to 06:53 of the following day and finally end with the crash of the agent.
20191104/153922.681 - U02000256 Upload of file '/opt/uc4/agent-12.2.3/bin/../temp/OAAFOBQJ.TXT' started.
20191104/153922.703 - U02000258 Upload of file '/opt/uc4/agent-12.2.3/bin/../temp/OAAFOBQJ.TXT' completed with error, reason '2 - No such file or directory'.
The error appears to be a permission issue.
If the job is running as root user then the ini needs the following entry without comment
root=START
The agent needs to be started as root user
There are two methods to start the agent with root privileges:
Start the agent directly under the user root.
Define root as owner, assign the group where the start user has to be a member of, set the execute bit for the group and set the SetUID (s-bit) for the agent file owner.
Example
Release :
Component : AUTOMATION ENGINE 12.2
Solaris Agent: 12.2.3
The Agent binaries were already owned by root user.
Enabling setuid fixed the issue.