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From "Harsh J (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-402) Display the server version in dfsadmin -report
Date Mon, 02 Jan 2012 10:04:30 GMT

    [ https://issues.apache.org/jira/browse/HDFS-402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178332#comment-13178332

Harsh J commented on HDFS-402:

Hey Uma,

Yep I read that. My comments were just for the patch :)

I'm just thinking if its worth sending that version info (beyond RPC version which we already
do) for just this purpose.

Second point is that with metrics and such data exposed now, that should be the direction
we should be pushing the monitoring at. I doubt if "dfsadmin -report" even stands close to
that, though it is nifty as it stands today and shouldn't be removed. Just shouldn't be suggested
to be used for monitoring, or checking, over the metrics stuff?

What would you say for this approach vs. improved documentation and stabilization of the metrics
information we publish?
> Display the server version in dfsadmin -report
> ----------------------------------------------
>                 Key: HDFS-402
>                 URL: https://issues.apache.org/jira/browse/HDFS-402
>             Project: Hadoop HDFS
>          Issue Type: Wish
>            Reporter: Jakob Homan
>            Priority: Minor
>              Labels: newbie
>         Attachments: HDFS-402.patch
> 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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