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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CHUKWA-686) Creating a new adaptor: FileTailingAdaptorPreserveLines
Date Sun, 07 Jul 2013 04:31:48 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13701504#comment-13701504
] 

Hudson commented on CHUKWA-686:
-------------------------------

Integrated in Chukwa-trunk #466 (See [https://builds.apache.org/job/Chukwa-trunk/466/])
    CHUKWA-686. Added FileTailingAdaptorPreserveLines adaptor. (Sourygna Luangsay via Eric
Yang) (Revision 1500367)

     Result = FAILURE
eyang : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1500367
Files : 
* /incubator/chukwa/trunk/src/test/java/org/apache/hadoop/chukwa/datacollection/adaptor/filetailer/TestFileTailingAdaptorPreserveLines.java

                
> Creating a new adaptor: FileTailingAdaptorPreserveLines
> -------------------------------------------------------
>
>                 Key: CHUKWA-686
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-686
>             Project: Chukwa
>          Issue Type: Improvement
>          Components: Data Collection
>            Reporter: Sourygna Luangsay
>            Assignee: Sourygna Luangsay
>            Priority: Minor
>             Fix For: 0.6.0
>
>         Attachments: chukwa-686-2.patch, chukwa-686.patch
>
>
> FileTailingAdaptor is great to tail log files and send them to Hadoop.
> However, last line of the chunk is usually cut which leads to some errors.
> CharFileTailingAdaptorUTF8 can solve such problem.
> Nonetheless, this adaptor calls the MapProcessor.process() method for every
> line in each chunk, thus slowing a lot the Demux phase.
> FileTailingAdaptorPreserveLines adaptor mixes the benefits of the two
> adaptors: the (Demux) speed of FileTailingAdaptor and
> the preservation of lines from CharFileTailingAdaptorUTF8.

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