[AMBARI-12554] FE: Switching between different service's configs does not reduce DOM node and listeners count

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.1.1
• Fix Version/s: 2.1.1
• Component/s: ambari-web
• Assignee: Aleksandr Kovalenko
• Reporter: Aleksandr Kovalenko
• Created: 27/Jul/15 16:10
• Updated: 27/Jul/15 18:19
• Resolved: 27/Jul/15 16:34

Description

Was profiling Ambari-2.1.0 latest build and switching between service's and their configuration tabs. The path I took was HDFS (Settings) > HDFS (Advanced) > YARN (Settings) > YARN (Advanced) > Hive (Settings) > Hive (Advanced), and back to HDFS.

This route resulted in 122K DOM nodes becoming 219K DOM nodes. Also 159 listeners became 606 listeners. This was after garbage collection was done. It looks like once we go a service's configs page and leave it, we are leaving behind DOM nodes and listeners, which keep accumulating and bloating the app.