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From José Luis Larroque <larroques...@gmail.com>
Subject Re: Reduce stuck at 0% in PageRankBenchmark - Giraph examples
Date Tue, 24 Mar 2015 20:46:25 GMT
I'm sorry, here are the mapper's logs, please tell me if something else is
needed.

Here they go in the attachments

Thanks!

2015-03-24 17:30 GMT-03:00 José Luis Larroque <larroquester@gmail.com>:

> Hi guys, i'm testing my Single Node Cluster Giraph installation using
> PageRankBenchmark example, in the following way:
>
> *$HADOOP_HOME/bin/hadoop jar
>   /usr/local/hadoop/share/hadoop/mapreduce/giraph-examples-1.1.0-for-hadoop-2.4.0-jar-with-dependencies.jar
> org.apache.giraph.benchmark.PageRankBenchmark -v -V 1000 -e 1 -s 5 -w 1*
>
>
> But after's the mappers complete their job, reducer's don't start. My
> question is, this is correct?
>
>
> Because i understand that if a mapper get executed, a reducer has to start
> to take the map's output as an input and finish the work. But i google it,
> and always PageRankBenchmark (and ShortestPathExample too) ends with Reduce
> at 0%. Here it's an example :
> http://stackoverflow.com/questions/25084629/classnotfoundexception-running-giraphrunner-on-a-modified-simpleshortestpathsver
>
>
> So, i don't no if it's ok that in PageRankBenchmark and
> ShortestPathExample says that Reduce is at 0%
>
>
> I'm using hadoop 2.4, with Phadoop_yarn profile.
>
>
> Hope someone could help me.
>
> Bye!
>
>
> Jose
>
>

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