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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5839) fixes to ec2 scripts to allow remote job submission
Date Tue, 19 May 2009 02:42:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710590#action_12710590
] 

Hadoop QA commented on HADOOP-5839:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12408218/5839.1.patch
  against trunk revision 776148.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no tests are needed for this patch.

    -1 patch.  The patch command could not apply the patch.

Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/354/console

This message is automatically generated.

> fixes to ec2 scripts to allow remote job submission
> ---------------------------------------------------
>
>                 Key: HADOOP-5839
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5839
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/ec2
>            Reporter: Joydeep Sen Sarma
>            Assignee: Joydeep Sen Sarma
>         Attachments: 5839.1.patch
>
>
> i would very much like the option of submitting jobs from a workstation outside ec2 to
a hadoop cluster in ec2. This has been explored here:
> http://www.nabble.com/public-IP-for-datanode-on-EC2-tt19336240.html
> the net result of this is that we can make this work (along with using a socks proxy)
with a couple of changes in the ec2 scripts:
> a) use public 'hostname' for fs.default.name setting (instead of the private hostname
being used currently)
> b) mark hadoop.rpc.socket.factory.class.default as final variable in the generated hadoop-site.xml
(that applies to server side)
> #a has no downside as far as i can tell since public hostnames resolve to internal/private
IP addresses within ec2 (so traffic is optimally routed).

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