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Date: Thu, 29 Oct 2009 18:53:59 +0000 (UTC)
From: "Allen Wittenauer (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-5670) Hadoop configurations should be
 read from a distributed system
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    [ https://issues.apache.org/jira/browse/HADOOP-5670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771556#action_12771556 ] 

Allen Wittenauer commented on HADOOP-5670:
------------------------------------------

I wish I had pictures of the whiteboard talk Owen and I had around this feature.

One the big things I want people to keep in mind is that a client of the grid needs a lot of this information too.  [e.g., something like default block size]

There is also the issue of multiple JobTrackers per file system.

You can do lovely things with a hierarchy of configuration information.

> Hadoop configurations should be read from a distributed system
> --------------------------------------------------------------
>
>                 Key: HADOOP-5670
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5670
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: conf
>            Reporter: Allen Wittenauer
>
> Rather than distributing the hadoop configuration files to every data node, compute node, etc, Hadoop should be able to read configuration information (dynamically!) from LDAP, ZooKeeper, whatever.

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