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From "Sourygna Luangsay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CHUKWA-686) Creating a new adaptor: FileTailingAdaptorPreserveLines
Date Sun, 21 Apr 2013 14:31:15 GMT

     [ https://issues.apache.org/jira/browse/CHUKWA-686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sourygna Luangsay updated CHUKWA-686:
-------------------------------------

    Attachment: chukwa-686.patch
    
> 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.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.
> This adaptor that mix the benefits of the two
> adaptors: the (Demux) speed of FileTailingAdaptor and
> the preservation of lines from CharFileTailingAdaptorUTF8.

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