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https://issues.apache.org/jira/browse/HDFS-1052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12900605#action_12900605
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ryan rawson commented on HDFS-1052:
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Have you considered merely increasing the heap size? Switch to a no-pause GC
collector, one of them lies therein: http://www.managedruntime.org/ Right now
a machine can have 256 GB of ram for ~ $10,000. That is a 4x increase over
what we have now. Added bonus: no additional complexity!
> HDFS scalability with multiple namenodes
> ----------------------------------------
>
> Key: HDFS-1052
> URL: https://issues.apache.org/jira/browse/HDFS-1052
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: name-node
> Affects Versions: 0.22.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Attachments: Block pool proposal.pdf, Mulitple Namespaces5.pdf
>
>
> HDFS currently uses a single namenode that limits scalability of the cluster.
> This jira proposes an architecture to scale the nameservice horizontally
> using multiple namenodes.
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