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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NUTCH-2375) Upgrade the code base from org.apache.hadoop.mapred to org.apache.hadoop.mapreduce
Date Tue, 20 Jun 2017 16:35:01 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-2375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16056049#comment-16056049
] 

ASF GitHub Bot commented on NUTCH-2375:
---------------------------------------

lewismc commented on issue #188: NUTCH-2375 Upgrade the code base from org.apache.hadoop.mapred
to org.apache.hadoop.mapreduce
URL: https://github.com/apache/nutch/pull/188#issuecomment-309815700
 
 
   > But mapfileoutputformat and sequencefileoutputformat are different aren't they?
   
   Yes they have different semantics. You can see difference between [MapFile](https://hadoop.apache.org/docs/current/api/org/apache/hadoop/io/MapFile.html)
and [SequenceFile](https://hadoop.apache.org/docs/current/api/org/apache/hadoop/io/SequenceFile.html).
   
   > Won't it cause some discrepancy?
   
   It may well do. Right now though you can implement them (there are only 4 or 5 instances)
we have this thread for reference. If there are discrepancies then we can come back and fix
them.
   \Most import thing is that you continue to move onwards.
 
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> Upgrade the code base from org.apache.hadoop.mapred to org.apache.hadoop.mapreduce
> ----------------------------------------------------------------------------------
>
>                 Key: NUTCH-2375
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2375
>             Project: Nutch
>          Issue Type: Improvement
>          Components: deployment
>            Reporter: Omkar Reddy
>
> Nutch is still using the deprecated org.apache.hadoop.mapred dependency which has been
deprecated. It need to be updated to org.apache.hadoop.mapreduce dependency. 



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