[AMBARI-24961] Ambari is unable to parse {{hostname}} in {hdfs-site/dfs.datanode.address} and is triggering alert for datanode process

• Type: Bug
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: trunk, 2.6.2, 2.7.0
• Component/s: ambari-agent
• Labels: pull-request-available

Environment

ambari-2.6.2
ambari-2.7.0
trunk

• Assignee: Akhil Naik
• Reporter: Akhil Naik
• Created: 28/Nov/18 05:00
• Updated: 29/Sep/22 06:30

Description

Ambari is unable to parse
{{hostname}} in

{hdfs-site/dfs.datanode.address}

and is triggering alert for datanode process

I changed the value of dfs.datanode.address in Advanced hdfs configuration using ambari

i set value to
{{hostname}}:50010 ( default value is 0.0.0.0:50010 )

Now after restart datanode is working fine and but ambari is triggering alert on datanode process with error :

"Connection failed: [Errno -2] Name or service not known to
{{hostname}}:50010"

expected result : Ambari shouldnt trigger the alert and it should pass
{{hostname}} correctly to localhost

Issue Links

• links to: GitHub PR#2658
• links to: GitHub Pull Request #2658