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https://issues.apache.org/jira/browse/HDFS-4664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo Nicholas Sze updated HDFS-4664:
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Component/s: (was: balancer & mover)
> HDFS for heterogeneous environment
> ----------------------------------
>
> Key: HDFS-4664
> URL: https://issues.apache.org/jira/browse/HDFS-4664
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 0.20.2
> Environment: Ubuntu Linux, Institutional lab
> Reporter: Mohammad Mustaqeem
>
> I want to use HDFS for storing the files in the institutional labs.
> Here the point is to be noted that all the nodes in the labs are not of same
> type that is some nodes stay on for longer duration while some for small
> duration.
> In addition to this all the labs are not same means that some lab has UPS
> facility and some has more nodes.
> If I consider the lab as rack, then we should not choose the racks and node
> randomly in replica placement.
> We should give more priority to those nodes that stay on for longer duration
> and to those lab which has lab facility and has more system.
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