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https://issues.apache.org/jira/browse/HDFS-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13623490#comment-13623490
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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/12577177/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/4192//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4192//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-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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