Hi, 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) node<tab>neighbors 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-0.20.203.0-jar-with-dependencies.jar > 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