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From Roman Shaposhnik <ro...@shaposhnik.org>
Subject Re: Issue in running giraph example in hadoop2.2
Date Mon, 24 Feb 2014 04:44:56 GMT
You need to configure Giraph not to split workers and master via
giraph.SplitMasterWorker=false

You can either set it in giraph-site.xml or pass via command
line option -ca giraph.SplitMasterWorker=false

Thanks,
Roman.

On Sat, Feb 22, 2014 at 10:19 PM, Arun Kumar <togarun@gmail.com> wrote:
> While running Giraph over Hadoop 2.2 I am getting the below exception
>
>
>
>
>
> 14/02/20 04:52:44 INFO Configuration.deprecation: mapred.job.tracker is
> deprecated. Instead, use mapreduce.jobtracker.address
>
> 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!
>
>                 at
> org.apache.giraph.job.GiraphJob.checkLocalJobRunnerConfiguration(GiraphJob.java:157)
>
>                 at org.apache.giraph.job.GiraphJob.run(GiraphJob.java:225)
>
>                 at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:94)
>
>                 at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
>
>                 at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
>
>                 at
> org.apache.giraph.GiraphRunner.main(GiraphRunner.java:124)
>
>                 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
>
>                 at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>
>                 at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>
>                 at java.lang.reflect.Method.invoke(Method.java:597)
>
>                 at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
>
>
>
>
>
> One of the solution found in the archive was to modify
> /directory-to-hadoop/conf/mapred-site.xml with:
>
>
>
> <property>
>
>   <name>mapred.tasktracker.map.tasks.maximum</name>
>
>   <value>4</value>
>
> </property>
>
>
>
> <property>
>
>   <name>mapred.map.tasks</name>
>
>   <value>4</value>
>
> </property>
>
>
>
> But in my case it did not work..
>
>
> Can somebody help?
>
>
> Regards
>
> -Arun

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