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From "DENG FEI (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12561) FavoredNodes should shuffle if more than replicas and make writer first if present at BlockPlacementPolicyDefault#chooseTarget
Date Fri, 29 Sep 2017 02:35:01 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

DENG FEI updated HDFS-12561:
----------------------------
    Description: As default behavior,will choose in the front of favorite nodes, may lead
to unbalance(IO/Storage)  (was: As default behavior,will choose in the front of )

> FavoredNodes should shuffle if more than replicas and make writer first if present at
BlockPlacementPolicyDefault#chooseTarget
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-12561
>                 URL: https://issues.apache.org/jira/browse/HDFS-12561
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: block placement
>            Reporter: DENG FEI
>         Attachments: HDFS-12561-trunk-001.patch
>
>
> As default behavior,will choose in the front of favorite nodes, may lead to unbalance(IO/Storage)



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