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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12008) Improve the available-space block placement policy
Date Fri, 23 Jun 2017 17:40:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16061277#comment-16061277
] 

Kihwal Lee commented on HDFS-12008:
-----------------------------------

branch-2 precommit failure. HADOOP-14146 is still causing problems. Will bug Daryn again.

> Improve the available-space block placement policy
> --------------------------------------------------
>
>                 Key: HDFS-12008
>                 URL: https://issues.apache.org/jira/browse/HDFS-12008
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: block placement
>    Affects Versions: 2.8.1
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: HDFS-12008.patch, HDFS-12008.v2.branch-2.patch, HDFS-12008.v2.trunk.patch,
RandomAllocationPolicy.png
>
>
> AvailableSpaceBlockPlacementPolicy currently picks two nodes unconditionally, then picks
one node. It could avoid picking the second node when not necessary.



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