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From "Matt Foley (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7809) Backport HADOOP-5839 to 0.20-security - fixes to ec2 scripts to allow remote job submission
Date Wed, 09 Nov 2011 01:43:51 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Matt Foley updated HADOOP-7809:

    Attachment:     (was: 5839.1.patch)
> Backport HADOOP-5839 to 0.20-security - fixes to ec2 scripts to allow remote job submission
> -------------------------------------------------------------------------------------------
>                 Key: HADOOP-7809
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7809
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: contrib/cloud
>            Reporter: Joydeep Sen Sarma
>            Assignee: Matt Foley
>         Attachments: hadoop-5839.2.patch
> The fix for HADOOP-5839 was committed to 0.21 more than a year ago.  This bug is to backport
the change (which is only 14 lines) to branch-0.20-security.
> ===========
> Original description:
> 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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