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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1702) Expose kill app functionality as part of RM web services
Date Fri, 21 Feb 2014 16:28:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-1702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13908479#comment-13908479
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Alejandro Abdelnur commented on YARN-1702:
------------------------------------------

It seems my comment on the umbrella JIRA has gone unnoticed, posting here as well.

----
Before we start coding work on this, it would be great to see how security will handled (authentication,
ACLs, tokens, etc).
I'm a bit a concern about introducing a second protocol everywhere. From a maintenance and
security risk point of view is doubling our development/support efforts. Granted, HDFS offers
data over RPC and HTTP. But, HTTP, when using HttpFS (how I recommend using it HTTP access)
is a gateway that ends up doing RPC to HDFS. Thus the only protocol accessing HDFS is RPC.

Have we considered having a C implementation of Hadoop RPC, with the multiplatform support
of protobuffers that may give us the multi-platform support we are aiming to with a single
protocol interface.

Thoughts?
----

> Expose kill app functionality as part of RM web services
> --------------------------------------------------------
>
>                 Key: YARN-1702
>                 URL: https://issues.apache.org/jira/browse/YARN-1702
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>         Attachments: apache-yarn-1702.2.patch, apache-yarn-1702.3.patch
>
>
> Expose functionality to kill an app via the ResourceManager web services API.



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