DIPAYAN BHOWMICK created AMBARI-12910:
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Summary: Ambari Views Framework - need support for accessing RM
running under HA
Key: AMBARI-12910
URL: https://issues.apache.org/jira/browse/AMBARI-12910
Project: Ambari
Issue Type: Bug
Components: ambari-views
Affects Versions: 2.1.0
Reporter: DIPAYAN BHOWMICK
Fix For: 2.1.2
Currently all views like the Tez view, YARN cluster view and YARN admin views
that need to access YARN RMs running HA don't handle this scenario correctly.
We need support in the views framework to enable this (note, if both RMs are
running the RMs handle redirecting from the standby RM to the active one, but
it has to be tested to work with the Ambari proxy. If one of the RMs is
actually down, things are broken today).
The Hive view might also need this.
The following changes need to be considered:
1. The property that used to specify the RM location has to be extended to take
a list of RM locations
2. The Ambari proxy has to cycle through the locations until it find one that
works
3. For auto-created view instances, based on the cluster configuration, the
multi-RM property in (1) has to be set correctly without user intervention
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