Cant get a collector to start up after a reboot of the server

Products

Network Observability CA Performance Management

Issue/Introduction

I just can't get dcmd or activemq to start up.

activemq.log no new entries

karaf.log no new entries,

The errors say permission denied, Running as root

-- Unit activemq.service has begun starting up.
Dec 13 13:25:37 <HOST> systemd[1875]: dcmd.service: Failed to execute command: Permission denied
Dec 13 13:25:37 <HOST> systemd[1876]: activemq.service: Failed to execute command: Permission denied
Dec 13 13:25:37 <HOST> systemd[1876]: activemq.service: Failed at step EXEC spawning /opt/IMDataCollector/scripts/activemq: Permission denied
-- Subject: Process /opt/IMDataCollector/scripts/activemq could not be executed
-- Defined-By: systemd
--
-- The process /opt/IMDataCollector/scripts/activemq could not be executed and failed.
--
-- The error number returned by this process is 13.
Dec 13 13:25:37 <HOST> systemd[1875]: dcmd.service: Failed at step EXEC spawning /opt/IMDataCollector/scripts/dcmd: Permission denied
-- Subject: Process /opt/IMDataCollector/scripts/dcmd could not be executed
-- Defined-By: systemd
--
-- The process /opt/IMDataCollector/scripts/dcmd could not be executed and failed.
--
-- The error number returned by this process is 13.
Dec 13 13:25:37 <HOST> systemd[1]: dcmd.service: Control process exited, code=exited status=203
Dec 13 13:25:37 <HOST> systemd[1]: dcmd.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
--
-- The unit dcmd.service has entered the 'failed' state with result 'exit-code'.
Dec 13 13:25:37 <HOST> systemd[1]: Failed to start Data Collector.
-- Subject: Unit dcmd.service has failed
-- Defined-By: systemd
--
-- Unit dcmd.service has failed.
--
-- The result is failed.
Dec 13 13:25:37 <HOST> systemd[1]: activemq.service: Control process exited, code=exited status=203
Dec 13 13:25:37 <HOST> systemd[1]: activemq.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
--
-- The unit activemq.service has entered the 'failed' state with result 'exit-code'.
Dec 13 13:25:37 <HOST> systemd[1]: Failed to start Apache ActiveMQ.
-- Subject: Unit activemq.service has failed
-- Defined-By: systemd
--
-- Unit activemq.service has failed.
--
-- The result is failed.

Environment

Dx NetOps Performance Management

Cause

SELINUX was set to "enforcing"

Resolution

Disable SELinux, set to permissive mode, or create a policy to exclude the data collector processes from SELinux restrictions.

To permanently disable SELINUX

1. To disable selinux edit its configuration file by typing, as root:
vi /etc/selinux/config and Enter. A vi edit view will appear.

2. Type i to begin editing. The up, down, left & right arrows must be used to navigate through this configuration.

3. Change the line: SELINUX=enforcing to SELINUX=disabled. Hit the Esc key once, while holding Shift press the : (colon) key once and release.

4. Now type wq and hit Enter; this will write the changes to the file. To exit without making any changes, instead of wq type q! and hit Enter.

5. Reboot

Additional Information

Configure SELinux on Performance Management