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Date: Thu, 6 Mar 2008 02:04:58 -0800 (PST)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-2027) FileSystem should provide byte
 ranges for file locations
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    [ https://issues.apache.org/jira/browse/HADOOP-2027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12575638#action_12575638 ] 

Hadoop QA commented on HADOOP-2027:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12377232/HADOOP-2559-12.patch
against trunk revision 619744.

    @author +1.  The patch does not contain any @author tags.

    tests included +1.  The patch appears to include 42 new or modified tests.

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac -1.  The applied patch generated 592 javac compiler warnings (more than the trunk's current 590 warnings).

    release audit +1.  The applied patch does not generate any new release audit warnings.

    findbugs +1.  The patch does not introduce any new Findbugs warnings.

    core tests +1.  The patch passed core unit tests.

    contrib tests +1.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1903/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1903/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1903/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1903/console

This message is automatically generated.

> FileSystem should provide byte ranges for file locations
> --------------------------------------------------------
>
>                 Key: HADOOP-2027
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2027
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: fs
>            Reporter: Owen O'Malley
>            Assignee: lohit vijayarenu
>         Attachments: HADOOP-2027-1.patch, HADOOP-2027-10.patch, HADOOP-2027-2.patch, HADOOP-2027-3.patch, HADOOP-2027-4.patch, HADOOP-2027-5.patch, HADOOP-2027-6.patch, HADOOP-2027-7.patch, HADOOP-2027-8.patch, HADOOP-2027-9.patch, HADOOP-2559-11.patch, HADOOP-2559-12.patch
>
>
> FileSystem's getFileCacheHints should be replaced with something more useful. I'd suggest replacing getFileCacheHints with a new method:
> {code}
> BlockLocation[] getFileLocations(Path file, long offset, long range) throws IOException;
> {code}
> and adding
> {code}
> class BlockLocation implements Writable {
>   String[] getHosts();
>   long getOffset();
>   long getLength();
> }
> {code}

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