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https://issues.apache.org/jira/browse/NUTCH-2177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15033710#comment-15033710
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Hudson commented on NUTCH-2177:
-------------------------------
SUCCESS: Integrated in Nutch-trunk #3318 (See
[https://builds.apache.org/job/Nutch-trunk/3318/])
NUTCH-2177 Generator produces only one partition even in distributed mode
(jnioche: [http://svn.apache.org/viewvc/nutch/trunk/?view=rev&rev=1717412])
* trunk/CHANGES.txt
* trunk/src/java/org/apache/nutch/crawl/Generator.java
> Generator produces only one partition even in distributed mode
> --------------------------------------------------------------
>
> Key: NUTCH-2177
> URL: https://issues.apache.org/jira/browse/NUTCH-2177
> Project: Nutch
> Issue Type: Bug
> Components: generator
> Reporter: Julien Nioche
> Priority: Blocker
> Fix For: 1.11
>
> Attachments: NUTCH-2177.patch
>
>
> See
> [https://github.com/apache/nutch/blob/trunk/src/java/org/apache/nutch/crawl/Generator.java#L542]
> 'mapred.job.tracker' is deprecated and has been replaced by
> 'mapreduce.jobtracker.address', however when running Nutch on EMR
> mapreduce.jobtracker.address has local as a value. As a result we generate a
> single partition i.e. have a single map fetching later on (which defeats the
> object of having a distributed crawler).
> We should probably detect whether we are running on YARN instead, see
> [http://stackoverflow.com/questions/29680155/why-there-is-a-mapreduce-jobtracker-address-configuration-on-yarn]
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