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From "guowei (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-3292) Shuffle Tasks run incessantly even though there's no inputs
Date Fri, 29 Aug 2014 05:40:53 GMT

     [ https://issues.apache.org/jira/browse/SPARK-3292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

guowei updated SPARK-3292:
--------------------------

    Description: 
such as repartition groupby join and cogroup
it's too expensive , 
for example. if i want the shuffle outputs save as hadoop file ,even though  there is no inputs
, many emtpy file generate 

  was:
such as repartition groupby join and cogroup
it's too expensive , 
for example if i want outputs save as hadoop file ,then many emtpy file generate.


> Shuffle Tasks run incessantly even though there's no inputs
> -----------------------------------------------------------
>
>                 Key: SPARK-3292
>                 URL: https://issues.apache.org/jira/browse/SPARK-3292
>             Project: Spark
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.0.2
>            Reporter: guowei
>
> such as repartition groupby join and cogroup
> it's too expensive , 
> for example. if i want the shuffle outputs save as hadoop file ,even though  there is
no inputs , many emtpy file generate 



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