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https://issues.apache.org/jira/browse/YARN-2980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14484347#comment-14484347
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Allen Wittenauer commented on YARN-2980:
----------------------------------------

Or, you could go look at YARN-3375 .

> 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
>             Fix For: 3.0.0
>
>         Attachments: YARN-2980.001.patch, YARN-2980.002.patch, 
> YARN-2980.003.patch, YARN-2980.004.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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