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From "Andrey Kuzmin (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5670) Hadoop configurations should be read from a distributed system
Date Tue, 06 Apr 2010 08:25:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853801#action_12853801
] 

Andrey Kuzmin commented on HADOOP-5670:
---------------------------------------

> nodes register themselves, and their state, with ZK, allowing simple monitoring to be
implemented
I would add (dynamic) membership-aware scheduling. It's typically far from straightforward
for a scheduler to account for nodes (re)joining  group unless there is an explicit group
registration mechanism, with join/leave events dispatched to scheduler and other interested
parties.

> 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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