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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1804) Modify or add a new block-volume device choosing policy that looks at free space
Date Thu, 04 Apr 2013 09:39:22 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621972#comment-13621972
] 

Hadoop QA commented on HDFS-1804:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12576940/HDFS-1804.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/4185//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4185//console

This message is automatically generated.
                
> Modify or 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
>         Attachments: 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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