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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-89) files are not visible until they are closed
Date Wed, 19 Sep 2007 03:05:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-89?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12528644
] 

Hadoop QA commented on HADOOP-89:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12366109/tail4.patch
against trunk revision r577010.

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

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

    javac +1.  The applied patch does not generate any new compiler 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 failed contrib unit tests.

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/785/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/785/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/785/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/785/console

This message is automatically generated.

> files are not visible until they are closed
> -------------------------------------------
>
>                 Key: HADOOP-89
>                 URL: https://issues.apache.org/jira/browse/HADOOP-89
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.1.0
>            Reporter: Yoram Arnon
>            Assignee: dhruba borthakur
>            Priority: Critical
>             Fix For: 0.15.0
>
>         Attachments: tail.patch, tail3.patch, tail4.patch
>
>
> the current behaviour, whereby a file is not visible until it is closed has several flaws,including:
> 1. no practical way to know if a file/job is progressing
> 2. no way to implement files that never close, such as log files
> 3. failure to close a file results in loss of the file
> The part of the file that's written should be visible.

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