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https://issues.apache.org/jira/browse/NUTCH-1618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13989168#comment-13989168
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Hudson commented on NUTCH-1618:
-------------------------------
SUCCESS: Integrated in Nutch-nutchgora #1010 (See
[https://builds.apache.org/job/Nutch-nutchgora/1010/])
NUTCH-1618 Turn speculative execution off for Fetching (talat) (talat:
http://svn.apache.org/viewvc/nutch/branches/2.x/?view=rev&rev=1592218)
* /nutch/branches/2.x/CHANGES.txt
* /nutch/branches/2.x/src/java/org/apache/nutch/fetcher/FetcherJob.java
> Turn speculative execution off for Fetching
> -------------------------------------------
>
> Key: NUTCH-1618
> URL: https://issues.apache.org/jira/browse/NUTCH-1618
> Project: Nutch
> Issue Type: Bug
> Components: fetcher
> Affects Versions: 2.1, 2.2, 2.3, 2.4
> Reporter: Talat UYARER
> Assignee: Talat UYARER
> Priority: Minor
> Fix For: 2.3
>
> Attachments: NUTCH-1618-v2.patch, NUTCH-1618.patch
>
>
> We are using nutch for high volume crawls. We noticed that FetcherJob
> ReduceTask fetches some websites multiple times for long lasting queues. I
> have discovered the reason of this is
> mapred.reduce.tasks.speculative.execution settings in hadoop. 1.x has
> speculative execution turned off. I create a patch for 2.x
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