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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4664) HDFS for heterogeneous environment
Date Tue, 28 Jul 2015 00:45:04 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo Nicholas Sze updated HDFS-4664:
    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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