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https://issues.apache.org/jira/browse/HDFS-4113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13610090#comment-13610090
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Harsh J commented on HDFS-4113:
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Stephen - Do you agree with the above conclusion? Can we close this issue out?
> When adding datanodes with less disk capacity to an existing cluster, the new
> DNs fill up faster and subsequently cause errors during put operations
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-4113
> URL: https://issues.apache.org/jira/browse/HDFS-4113
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode
> Reporter: Stephen Fritz
> Priority: Minor
>
> The request is that the allocation strategy be modified so that it allocates
> equally on a 'free space percentage' basis between datanodes. IE disks that
> are twice as big should have twice as much data written to them per unit time.
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