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https://issues.apache.org/jira/browse/HDFS-14035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Liang updated HDFS-14035:
------------------------------
    Description: Currently ObserverReadProxyProvider uses 
{{HAServiceProtocol#getServiceStatus}} to get the status of each NN. However 
{{HAServiceProtocol}} does not leverage delegation token. So when running an 
application on YARN and when YARN node manager makes this call 
getServiceStatus, token authentication will fail, causing the application to 
fail.  (was: Currently ObserverReadProxyProvider uses 
{{HAServiceProtocol#getServiceStatus}} to get the status of each NN. 
{{HAServiceProtocol}} does not leverage delegation token. So when YARN node 
manager makes this call, token authentication will fail, causing the 
application to fail.)

> NN status discovery does not leverage delegation token
> ------------------------------------------------------
>
>                 Key: HDFS-14035
>                 URL: https://issues.apache.org/jira/browse/HDFS-14035
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>            Priority: Major
>
> Currently ObserverReadProxyProvider uses 
> {{HAServiceProtocol#getServiceStatus}} to get the status of each NN. However 
> {{HAServiceProtocol}} does not leverage delegation token. So when running an 
> application on YARN and when YARN node manager makes this call 
> getServiceStatus, token authentication will fail, causing the application to 
> fail.



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