Make sure set this value in your mapred-site.xml
<property>
<name>mapred.job.tracker</name>
<value>***********************</value>
<description>jobtracker's address</description>
</property>
On Wed, Sep 24, 2014 at 12:07 AM, Arghya Kusum Das <
arghyakusumdas2...@gmail.com> wrote:
> Hi,
>
> I was trying to run the giraph simple shortest path example (that comes
> with giraph package) on 3 nodes (1 namenode and 2 datanodes) hadoop-0.23.10
> cluster. I used 7 mappers and 7 reducers run simultaneously at each node in
> mapred-site.xml.
>
> The command I typed:
> $HADOOP_HOME/bin/hadoop jar
>
> /usr/local/giraph-1.1.0/giraph-examples/target/giraph-examples-1.1.0-SNAPSHOT-for-hadoop-0.23.1-jar-with-dependencies.jar
> org.apache.giraph.GiraphRunner
> org.apache.giraph.examples.SimpleShortestPathsComputation -vif
> org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat
> -vip /user/hduser/input/tiny_graph.txt -of
> org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op
> /output/shortestpaths *-w 12*
>
> When I ran with 12 workers (-w 12) the error was :
> 'Exception in thread "main" java.lang.IllegalArgumentException:
> checkLocalJobRunnerConfiguration: When using LocalJobRunner, must have only
> one worker since only 1 task at a time!'
>
> When I change it to 1 (-w 1) the error was:
> 'Exception in thread "main" java.lang.IllegalArgumentException:
> checkLocalJobRunnerConfiguration: When using LocalJobRunner, you cannot run
> in split master / worker mode since there is only 1 task at a time!'
>
> What am I missing?
>
> --
> Thanks and regards,
> Arghya Kusum Das
> (225-362-4031)
>
--
Xuhong Zhang
