[jira] [Created] (YARN-4316) Make NM's version information useful for upgrade

["Jun Gong (JIRA)" <ji...@apache.org>]

Jun Gong created YARN-4316:
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             Summary: Make NM's version information useful for upgrade
                 Key: YARN-4316
                 URL: https://issues.apache.org/jira/browse/YARN-4316
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: nodemanager
            Reporter: Jun Gong
            Assignee: Jun Gong
            Priority: Minor


When upgrading all NM to a new bug fix version, we often upgrade some NM first, then upgrade rest NM if all looks right. We could avoid breakdown whole cluster in this way if new version of NM does not work well. But there is no easy way to tell us whether we have missed upgrading some NM.

We could see all NM's version info in RM's web page as attached. These version info are too generic, e.g. 2.4.1, 2.6.1, 2.6.2. For small bug fix version, version will remain same. If we could change the version info more detailed(e.g. 2.4.1.12), we could make sure whether we have upgrade all NM to the new bug fix version.

I propose to add a new config(yarn.nodemanager.version) in yarn-site.xml to solve this problem. When upgrading NM, we configure it to the new version at the same time. NM will report this version to RM, then we could see it.



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