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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1804) Add a new block-volume device choosing policy that looks at free space
Date Sun, 07 Apr 2013 13:13:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624905#comment-13624905
] 

Hudson commented on HDFS-1804:
------------------------------

Integrated in Hadoop-Hdfs-trunk #1365 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1365/])
    HDFS-1804. Add a new block-volume device choosing policy that looks at free space. Contributed
by Aaron T. Myers. (Revision 1465183)

     Result = FAILURE
atm : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1465183
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/test/GenericTestUtils.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/AvailableSpaceVolumeChoosingPolicy.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/TestAvailableSpaceVolumeChoosingPolicy.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/TestRoundRobinVolumeChoosingPolicy.java

                
> Add a new block-volume device choosing policy that looks at free space
> ----------------------------------------------------------------------
>
>                 Key: HDFS-1804
>                 URL: https://issues.apache.org/jira/browse/HDFS-1804
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode
>    Affects Versions: 2.0.4-alpha
>            Reporter: Harsh J
>            Assignee: Aaron T. Myers
>            Priority: Minor
>             Fix For: 2.0.5-beta
>
>         Attachments: HDFS-1804.patch, HDFS-1804.patch, HDFS-1804.patch, HDFS-1804.patch,
HDFS-1804.patch
>
>
> HDFS-1120 introduced pluggable block-volume choosing policies, but still carries the
vanilla RoundRobin as its default.
> An additional implementation that also takes into consideration the free space remaining
on the disk (or other params) should be a good addition as an alternative to vanilla RR.

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