Unable to start Nagios Service (Doc ID 2539943.1)

Last updated on FEBRUARY 02, 2022

Applies to:

Symptoms

Unable to start Nagios Network Monitoring service after reboot.
-- var/log/messages ----

May 6 09:14:28 <hostname> nagios: Checking global event handlers...
May 6 09:14:28 <hostname> nagios: Checking obsessive compulsive processor commands...
May 6 09:14:28 <hostname> nagios: Checking misc settings...
May 6 09:14:28<hostname> nagios: Total Warnings: 0
May 6 09:14:28 <hostname> nagios: Total Errors: 0
May 6 09:14:28 <hostname> nagios: Things look okay - No serious problems were detected during the pre-flight check
May 6 09:14:28<hostname> nagios: Failed to obtain lock on file /var/run/nagios/nagios.pid: No such file or directory
May 6 09:14:28 <hostname> nagios: Bailing out due to errors encountered while attempting to daemonize... (PID=9029)
May 6 09:14:28 <hostname> systemd: nagios.service: control process exited, code=exited status=254
May 6 09:14:28 <hostname> systemd: Failed to start Nagios Network Monitoring.
May 6 09:14:28 <hostname> systemd: Unit nagios.service entered failed state.
May 6 09:14:28 <hostname> systemd: nagios.service failed.

 $ less installed-rpms | grep nagios
nagios-4.3.4-3.el7.x86_64 Mon Feb 18 14:30:00 2019
nagios-common-4.3.4-3.el7.x86_64 Mon Feb 18 14:29:59 2019

Cause

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