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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-402) Display the server version in dfsadmin -report
Date Wed, 16 Dec 2015 17:38:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15060371#comment-15060371
] 

Allen Wittenauer commented on HDFS-402:
---------------------------------------

bq.  It is perhaps because there are already other ways to get the relevant information. E.g.,
I do not have any experience with Ambari, but it must be checking and reporting versions through
jmx, etc.

In other words, rather than having Hadoop's built-in reporting mechanism actually work and
give useful information, we should require a third party tool or make ops teams write their
own reporting tools even though it's going to be an absolutely common request/requirement
after rolling upgrades become more common place?


> Display the server version in dfsadmin -report
> ----------------------------------------------
>
>                 Key: HDFS-402
>                 URL: https://issues.apache.org/jira/browse/HDFS-402
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Jakob Homan
>            Assignee: Uma Maheswara Rao G
>            Priority: Minor
>              Labels: newbie
>         Attachments: HDFS-402.patch, HDFS-402.patch, HDFS-402.patch, hdfs-402.txt
>
>
> As part of HADOOP-5094, it was requested to include the server version in the dfsadmin
-report, to avoid the need to screen scrape to get this information:
> bq. Please do provide the server version, so there is a quick and non-taxing way of determine
what is the current running version on the namenode.
> Currently there is nothing in the dfs client protocol to query this information.



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