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Date: Tue, 28 Feb 2012 19:31:46 +0000 (UTC)
From: "Hadoop QA (Commented) (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-7940) method clear() in
 org.apache.hadoop.io.Text does not work
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    [ https://issues.apache.org/jira/browse/HADOOP-7940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13218519#comment-13218519 ] 

Hadoop QA commented on HADOOP-7940:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12516354/HADOOP-7940.patch
  against trunk revision .

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

    +1 tests included.  The patch appears to include 3 new or modified tests.

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

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    -1 core tests.  The patch failed these unit tests:
                  org.apache.hadoop.fs.viewfs.TestViewFsTrash

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/638//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/638//console

This message is automatically generated.
                
> method clear() in org.apache.hadoop.io.Text does not work
> ---------------------------------------------------------
>
>                 Key: HADOOP-7940
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7940
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.20.205.0
>         Environment: Ubuntu, hadoop cloudera CDH3U2, Oracle SUN JDK 6U30
>            Reporter: Aaron,
>            Assignee: Csaba Miklos
>              Labels: patch
>         Attachments: HADOOP-7940.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> LineReader reader = new LineReader(in, 4096);
> ...
> Text text = new Text();
> while((reader.readLine(text)) > 0) {
>      ...
>      text.clear();
> }
> }
> Even the clear() method is called each time, some bytes are still not filled as zero.
> So, when reader.readLine(text) is called in a loop, some bytes are dirty which was from last call.

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