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Posted to dev@nutch.apache.org by "Sebastian Nagel (JIRA)" <ji...@apache.org> on 2018/09/12 09:07:01 UTC

[jira] [Resolved] (NUTCH-2637) Number of fetcher reducers is misconfigured when the arg not passed

     [ https://issues.apache.org/jira/browse/NUTCH-2637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Nagel resolved NUTCH-2637.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.4

Merged PR #381. Thanks, [~sinsi404]!

> Number of fetcher reducers is misconfigured when the arg not passed
> -------------------------------------------------------------------
>
>                 Key: NUTCH-2637
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2637
>             Project: Nutch
>          Issue Type: Bug
>          Components: fetcher
>    Affects Versions: 2.3, 2.3.1
>            Reporter: Fumio Nakajima
>            Priority: Minor
>             Fix For: 2.4
>
>
> I'm kind a new to this, so sorry if i'm wrong.
>  The thing is the number of fetcher reducers are currently set to the value of "mapreduce.job.maps" when the arg not passed. It should be "mapreduce.job.reduces".
>  
> [https://github.com/apache/nutch/blob/2.x/src/java/org/apache/nutch/fetcher/FetcherJob.java#L216]
> Line: 216, branch-2.X
> {code:java}
> if (numTasks == null || numTasks < 1) {
> currentJob.setNumReduceTasks(currentJob.getConfiguration().getInt(
> "mapreduce.job.maps", currentJob.getNumReduceTasks()));
> } else {
> currentJob.setNumReduceTasks(numTasks);
> }
> {code}



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