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

Products

• DX NetOps
• CA Performance Management - Usage and Administration

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

Rocky 8 

Performance Management 22.2.5 

Cause

SELINUX was enabled 

Resolution

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