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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1120) Make DataNode's block-to-device placement policy pluggable
Date Sat, 26 Mar 2011 01:09:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011526#comment-13011526
] 

dhruba borthakur commented on HDFS-1120:
----------------------------------------

Looks like a reasonable start. can we make the datanode to use a config that specifies the
classname that will implement the above interface?

> 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
>
> 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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