Hi Yazan, This indeed if of great help especially the help command:
"/directory-to-hadoop/bin/hadoop jar/directory-to-giraph/giraph-examples/target/giraph-examples-1.1.0-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner -h" But there seems to be some problem in your command because there is no class named "org.apache.giraph.examples.SimpleShortestPathsComputation" I then looked up in the path "org/apache/giraph/examples/" and found that there is a class named "org.apache.giraph.examples.SimpleShortestPathsVertex" so I tried this instead of yours. But this does not work It gives following error. Any guidance will be helpful 13/06/01 18:28:22 INFO utils.ConfigurationUtils: No edge input format specified. Ensure your InputFormat does not require one. 13/06/01 18:28:22 WARN job.GiraphConfigurationValidator: Output format vertex index type is not known 13/06/01 18:28:22 WARN job.GiraphConfigurationValidator: Output format vertex value type is not known 13/06/01 18:28:22 WARN job.GiraphConfigurationValidator: Output format edge value type is not known 13/06/01 18:28:22 INFO job.GiraphJob: run: Since checkpointing is disabled (default), do not allow any task retries (setting mapred.map.max.attempts = 0, old value = 4) 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:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.apache.hadoop.util.RunJar.main(RunJar.java:156) Regards Puneet ----- Original Message ----- From: Yazan Boshmaf <bosh...@ece.ubc.ca> To: user@giraph.apache.org; Puneet Agarwal <puagar...@yahoo.com> Cc: Sent: Saturday, June 1, 2013 7:59 AM Subject: Re: GiraphJob Vs InternalVertexRunner After packaging Giraph (i.e., you can locate the JAR files under "target" folder in each module), you can run one of the included examples under /directory-to-giraph/giraph-examples as follows: /directory-to-hadoop/bin/hadoop jar /directory-to-giraph/giraph-examples/target/giraph-examples-1.1.0-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner org.apache.giraph.examples.SimpleShortestPathsComputation -vif org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat -vip /dfs-user-direcory/some-input-json -of org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op /dfs-user-direcory/some-output-text -w 1 This runs the SimpleShortestPathsComputation using the input file /dfs-user-direcory/some-input-json, which has the format [source_id, source_value, [ [dest_id, edge_weight], ...] ]. It comutes the shortest paths to all nodes from a given source, which is the first source_id in the input file. The output file is /dfs-user-direcory/some-output-text, and its format is "source_id distance_value". The computation is done using one worker. You can run he following for more info: /directory-to-hadoop/bin/hadoop jar /directory-to-giraph/giraph-examples/target/giraph-examples-1.1.0-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner -h Hope this helps. Cheers, Yazan On Fri, May 31, 2013 at 6:07 PM, Puneet Agarwal <puagar...@yahoo.com> wrote: > It seems there are two ways to run a Giraph job. > > a) using the class InternalVertexRunner > b) using the class GiraphJob > > Which one should be used where ? > > Thanks > Puneet
