Hi, you need to specify the vertex outputformat class (-vof option), e.g. org.apache.giraph.io.formats.IdWithValueTextOutputFormat.
On Fri, Oct 4, 2013 at 1:06 PM, Silvio Di gregorio < silvio.digrego...@gmail.com> wrote: > > 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 > > -- Claudio Martella claudio.marte...@gmail.com
