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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-234) Integration with BookKeeper logging system
Date Tue, 08 May 2012 17:59:54 GMT

    [ https://issues.apache.org/jira/browse/HDFS-234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270658#comment-13270658
] 

Todd Lipcon commented on HDFS-234:
----------------------------------

Uma: I'm a little concerned about having this as a main part of our 2.0 release, to be honest.
There hasn't been activity and the only activity I've seen around it has been from Ivan. Is
anyone committed to actually QAing and running this code? A lot of the other features around
HA don't integrate with it, it isn't documented, etc. Maybe we should start a discussion on
the list.
                
> Integration with BookKeeper logging system
> ------------------------------------------
>
>                 Key: HDFS-234
>                 URL: https://issues.apache.org/jira/browse/HDFS-234
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Luca Telloli
>            Assignee: Ivan Kelly
>             Fix For: 3.0.0
>
>         Attachments: HADOOP-5189-trunk-preview.patch, HADOOP-5189-trunk-preview.patch,
HADOOP-5189-trunk-preview.patch, HADOOP-5189-v.19.patch, HADOOP-5189.patch, HDFS-234-branch-2.patch,
HDFS-234.diff, HDFS-234.diff, HDFS-234.diff, HDFS-234.diff, HDFS-234.diff, HDFS-234.patch,
create.png, hdfs_tpt_lat.pdf, zookeeper-dev-bookkeeper.jar, zookeeper-dev.jar
>
>
> BookKeeper is a system to reliably log streams of records (https://issues.apache.org/jira/browse/ZOOKEEPER-276).
The NameNode is a natural target for such a system for being the metadata repository of the
entire file system for HDFS. 

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