FAQ
Hi,

Is there some way to return control from MAP funtion and complete the job.



I am searching a file and when i get my required data i want mappers to stop rather than seraching the remaning part.



Thanks.



Wasim

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  • Enis Soztutar at Sep 7, 2009 at 3:43 pm
    Hi,

    Currently there is no way to signal a message to the map/reducer tasks.
    The issue was closed as won't fix.

    What you can do for now, is for example periodically check for a
    existence of a file in HDFS and if the file is present, just return from
    all map tasks.



    Wasim Bari wrote:

    Hi,

    Is there some way to return control from MAP funtion and complete the job.



    I am searching a file and when i get my required data i want mappers to stop rather than seraching the remaning part.



    Thanks.



    Wasim

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groupcommon-user @
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postedSep 7, '09 at 10:55a
activeSep 7, '09 at 3:43p
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websitehadoop.apache.org...
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Enis Soztutar: 1 post Wasim Bari: 1 post

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