Allen Wittenauer commented on YARN-2980:

The only thing that concerns me is whether or not we should classify this 
service beyond private.  I think for now this is fine though and we can revisit 
that later.  Pending a re-run of the jenkins tests, I'm +1.

> Move health check script related functionality to hadoop-common
> ---------------------------------------------------------------
>                 Key: YARN-2980
>                 URL: https://issues.apache.org/jira/browse/YARN-2980
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Ming Ma
>            Assignee: Varun Saxena
>         Attachments: YARN-2980.001.patch, YARN-2980.002.patch
> HDFS might want to leverage health check functionality available in YARN in 
> both namenode https://issues.apache.org/jira/browse/HDFS-7400 and datanode 
> https://issues.apache.org/jira/browse/HDFS-7441.
> We can move health check functionality including the protocol between hadoop 
> daemons and health check script to hadoop-common. That will simplify the 
> development and maintenance for both hadoop source code and health check 
> script.
> Thoughts?

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