Hi, I am trying to run a triangle counting computation which I have written and have setup an input file in the adjacencylist format as
1 1 2 0.3 3 0.1 2 1 2 0.7 6 0.9 ..... and provide the following command to run giraph $HADOOP_HOME/bin/hadoop jar $GIRAPH_HOME/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.TriangleCounting -vif org.apache.giraph.io.formats.AdjacencyListTextVertexInputFormat -vip /user/hduser1/input/{myfile} -vof org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op /user/hduser1/output/{myfile} -w 1 However I receive the following error (bold part) - 2013-12-01 18:11:41,926 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop library 2013-12-01 18:11:42,141 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name ugi already exists! 2013-12-01 18:11:42,373 INFO org.apache.giraph.graph.GraphTaskManager: setup: Log level remains at info 2013-12-01 18:11:42,488 INFO org.apache.hadoop.mapred.TaskLogsTruncater: Initializing logs' truncater with mapRetainSize=-1 and reduceRetainSize=-1 2013-12-01 18:11:42,527 INFO org.apache.hadoop.io.nativeio.NativeIO: Initialized cache for UID to User mapping with a cache timeout of 14400 seconds. 2013-12-01 18:11:42,527 INFO org.apache.hadoop.io.nativeio.NativeIO: Got UserName hduser1 for UID 1002 from the native implementation 2013-12-01 18:11:42,532 WARN org.apache.hadoop.mapred.Child: Error running child java.lang.IllegalStateException: run: Caught an unrecoverable exception newInstance: *Couldn't instantiate org.apache.giraph.io.formats.AdjacencyListTextVertexInputFormat* at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:101) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:369) at org.apache.hadoop.mapred.Child$4.run(Child.java:259) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) at org.apache.hadoop.mapred.Child.main(Child.java:253) Caused by: java.lang.IllegalStateException: newInstance: Couldn't instantiate org.apache.giraph.io.formats.AdjacencyListTextVertexInputFormat at org.apache.giraph.utils.ReflectionUtils.newInstance(ReflectionUtils.java:105) at org.apache.giraph.conf.ImmutableClassesGiraphConfiguration.createVertexInputFormat(ImmutableClassesGiraphConfiguration.java:237) at org.apache.giraph.conf.ImmutableClassesGiraphConfiguration.createWrappedVertexInputFormat(ImmutableClassesGiraphConfiguration.java:248) at org.apache.giraph.graph.GraphTaskManager.checkInput(GraphTaskManager.java:170) at org.apache.giraph.graph.GraphTaskManager.setup(GraphTaskManager.java:193) at org.apache.giraph.graph.GraphMapper.setup(GraphMapper.java:59) at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:89) ... 7 more Caused by: java.lang.InstantiationException at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at java.lang.Class.newInstance(Class.java:374) at org.apache.giraph.utils.ReflectionUtils.newInstance(ReflectionUtils.java:103) ... 13 more 2013-12-01 18:11:42,540 INFO org.apache.hadoop.mapred.Task: Runnning cleanup for the task