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Article ID: 131042, created on Jun 23, 2017, last review on Jun 23, 2017

  • Applies to:
  • Operations Automation 7.0
  • Odin Automation Essentials 7.1


  1. On attempt to login to OA Essentials CP the following error appears:

    An unforseen error occured
  2. pa-agent service is not running on the management node.

  3. On attempt to start pa-agent the following error is thrown:

    Job for pa-agent.service failed because the control process exited with error code. See "systemctl status pa-agent.service" and "journalctl -xe" for details.
  4. Following error is registerede in /var/log/messages:

    Jun 21 20:07:30.285 systemd[1]: Starting SYSV: Starts and stops the PA service...
    Jun 21 20:07:30.307 pa-agent[5912]: /etc/rc.d/init.d/pa-agent: line 122: /bin/basename: Argument list too long
    Jun 21 20:07:30.308 pa-agent[5912]: Starting : /etc/rc.d/init.d/pa-agent: line 139: /usr/local/pem/bin/pa-watchdog: Argument list too long
    Jun 21 20:07:30.308 pa-agent[5912]: start failed
    Jun 21 20:07:30.309 systemd[1]: pa-agent.service: control process exited, code=exited status=126
    Jun 21 20:07:30.309 systemd[1]: Failed to start SYSV: Starts and stops the PA service.
    Jun 21 20:07:30.309 systemd[1]: Unit pa-agent.service entered failed state.
    Jun 21 20:07:30.309 systemd[1]: pa-agent.service failed.


Such behaviour is considered a software issue POA-111776: Unable to start pa-agent after CentOS update: Argument list too long errors. This issue is caused by update RHEL/Centos kernel to the version 3.10.0-514.21.2.el7.


Contact your Technical Account Manager in order to clarify the current status of the issue.

The following workaround is available:

  1. Modify /etc/init.d/pa-agent with the command:

    # sed -i.bak '/ulimit -s/d' /etc/init.d/pa-agent
  2. Start pa-agent:

    # systemctl start pa-agent

d29f8259a7236d291b08be8147a45abd caea8340e2d186a540518d08602aa065 0871c0b47b3b86ae3b1af4c2942cd0ce e12cea1d47a3125d335d68e6d4e15e07 5356b422f65bdad1c3e9edca5d74a1ae 1941880841f714e458ae4dc3d9f3062d e2dd85103e4d5b8ef7231deccb87506e

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