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From "Luca Telloli (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5189) Integration with BookKeeper logging system
Date Fri, 17 Apr 2009 17:01:16 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Luca Telloli updated HADOOP-5189:
---------------------------------

    Attachment: HADOOP-5189.patch

Newest patch supports reading from Bookkeeper as first source, so a configuration like: 
<property>
<name>hdfs.editlog</name>
<value>BOOKKEEPER,FILE</value>
</property>

would work and try to read from Bookkeeper first. 

> Integration with BookKeeper logging system
> ------------------------------------------
>
>                 Key: HADOOP-5189
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5189
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Luca Telloli
>             Fix For: 0.21.0
>
>         Attachments: create.png, HADOOP-5189-trunk-preview.patch, HADOOP-5189-trunk-preview.patch,
HADOOP-5189-trunk-preview.patch, HADOOP-5189.patch, HADOOP-5189.patch, HADOOP-5189.patch
>
>
> 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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