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https://issues.apache.org/jira/browse/HDFS-1120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J Chouraria updated HDFS-1120:
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Attachment: HDFS-1120.r1.diff
Attached a patch that refactors the round-robin default choosing mechanism to
something more pluggable via a defined public interface and a datanode
configurable option.
> Make DataNode's block-to-device placement policy pluggable
> ----------------------------------------------------------
>
> Key: HDFS-1120
> URL: https://issues.apache.org/jira/browse/HDFS-1120
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node
> Reporter: Jeff Hammerbacher
> Assignee: Harsh J Chouraria
> Attachments: HDFS-1120.r1.diff
>
>
> As discussed on the mailing list, as the number of disk drives per server
> increases, it would be useful to allow the DataNode's policy for new block
> placement to grow in sophistication from the current round-robin strategy.
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