I hope I have sent to the right address.

i have a graph (directed and unweighted) stored in hdfs like a adjacency list (140Milions of edges 6Milions of vertex)


23   2   1    3    4    3

1 999 99923 909 .......


hadoop version Hadoop 2.0.0-cdh4.3.0 - java 1.6

I have executed the giraph-1.0 connected components example, in this fashion

hadoop jar /usr/local/giraph/giraph-examples/target/giraph-examples-1.0.0-for-hadoop- org.apache.giraph.GiraphRunner org.apache.giraph.examples.ConnectedComponentsVertex -vif org.apache.giraph.io.formats.IntIntNullTextInputFormat -vip /user/hdfs/lista_adj_txt -op connectedgiraph --workers 4


and then fail with:

13/10/04 09:28:29 INFO utils.ConfigurationUtils: No edge input format specified. Ensure your InputFormat does not require one.


13/10/04 09:28:29 INFO utils.ConfigurationUtils: No output format specified. Ensure your OutputFormat does not require one.


13/10/04 09:28:30 INFO job.GiraphJob: run: Since checkpointing is disabled (default), do not allow any task retries (setting mapred.map.max.attempts = 0, old value = 4)


13/10/04 09:28:31 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same.


13/10/04 09:28:31 INFO mapred.JobClient: Cleaning up the staging area hdfs://srv-bigdata-dev-01.int.sose.it:8020/user/hdfs/.staging/job_201309181636_0535

Exception in thread "main" java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected

        at org.apache.giraph.bsp.BspOutputFormat.checkOutputSpecs(BspOutputFormat.java:43)




Thanks in advance