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https://issues.apache.org/jira/browse/HDFS-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12930854#action_12930854
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Jeff Hammerbacher commented on HDFS-1051:
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Another path to scalability: BAH's Aaron Cordova has a prototype of using HBase
for storing the NN metadata up at http://code.google.com/p/hdfs-dnn/.
> Umbrella Jira for Scaling the HDFS Name Service
> -----------------------------------------------
>
> Key: HDFS-1051
> URL: https://issues.apache.org/jira/browse/HDFS-1051
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 0.22.0
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
>
> The HDFS Name service currently uses a single Namenode which limits its
> scalability. This is a master jira to track sub-jiras to address this problem.
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