[AMBARI-12953] Ambari Agent logging set up incorrect

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.3.0
• Component/s: ambari-agent
• Assignee: Nahappan Somasundaram
• Reporter: Nahappan Somasundaram
• Created: 01/Sep/15 04:53
• Updated: 02/Sep/15 22:18
• Resolved: 02/Sep/15 20:28

Description

PROBLEM: The customer wanted to change their Ambari Agent logging location for the default /var/log/ambari-agent location to another place. They initially changed the LOGFILE and OUTFILE environment variables in /usr/sbin/ambari-agent and although this changed the displayed log and out file location when starting the Ambari Agent, only the out file was written to the new location.

BUSINESS IMPACT: Customer not able to write logs to correct location

SUPPORT ANALYSIS: Digging in to the code it seems that the Ambari Agent will honour the path specified by the environment variable AMBARI_AGENT_LOG_DIR. However:

• The /usr/sbin/ambari-agent script uses the environment variable AMBARI_LOG_DIR (lines 91 and 92) and doesn't set LOGFILE to the correct location if AMBARI_AGENT_LOG_DIR is set.
• /etc/init.d/ambari-agent doesn't use the -l switch on the bash command line when starting the Ambari Agent as root (line 27) so all environment variables defined in the profile for root are ignored.