Rohith commented on YARN-3193:

Redirecting to Active RM is behaviour in RM HA feature [RM HA Web UI 
This is mainly because standBy RM does not starts any activeServices for 
serving requests, so for the user connecting to standbyRM does not get any 
information about the applications or metrics. And the user need not worry for 
always identifying activeRM web page on every switch. But in case of NameNode 
HA, it is different behaviour i.e all the datanodes reports to standby NameNode 
also, so that you can see some of the statistics like blockreport etc. 
bq. but this redirect is very slow 
This can be reduced by configuring some of the retry parameters. Refer [RM HA 

> When visit standby RM webui, it will redirect to the active RM webui slowly.
> ----------------------------------------------------------------------------
>                 Key: YARN-3193
>                 URL: https://issues.apache.org/jira/browse/YARN-3193
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: webapp
>            Reporter: Japs_123
>            Priority: Minor
> when visit the standby RM web ui, it will redirect to the active RM web ui. 
> but this redirect is very slow which give client bad experience. I have try 
> to visit standby namenode,  it directly show the web to client quickly. So, 
> can we improve this experience with YARN  like HDFS. 

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