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From "Eli Collins (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7940) method clear() in org.apache.hadoop.io.Text does not work
Date Tue, 28 Feb 2012 16:35:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13218333#comment-13218333
] 

Eli Collins commented on HADOOP-7940:
-------------------------------------

Hi Csaba,

Thanks for contributing!  Mind attaching a patch against trunk? (attach files and be sure
to check "Grant license to ASF for inclusion in ASF works"). This is necessary to incorporate
your change into the code. More info here: http://wiki.apache.org/hadoop/HowToContribute

Thanks,
Eli
                
> 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
>   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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