in the latest trunk, this is line 42: double newValue = this.<DoubleWritable>getAggregatedValue(SMC_AGG).get();
What kind of input graph are you using? On Wed, Feb 13, 2013 at 1:25 PM, Maria Stylianou <mars...@gmail.com> wrote: > I didn't change anything in the code. I took the example as it is. > Actually, the whole error message is this one: > > java.lang.IllegalStateException: run: Caught an unrecoverable exception > waitFor: ExecutionException occurred while waiting for > org.apache.giraph.utils.ProgressableUtils$FutureWaitable@1ea326f9 > at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:102) > 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$4.run(Child.java:259) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) > at org.apache.hadoop.mapred.Child.main(Child.java:253) > Caused by: java.lang.IllegalStateException: waitFor: ExecutionException > occurred while waiting for > org.apache.giraph.utils.ProgressableUtils$FutureWaitable@1ea326f9 > at > org.apache.giraph.utils.ProgressableUtils.waitFor(ProgressableUtils.java:145) > at > org.apache.giraph.utils.ProgressableUtils.waitForever(ProgressableUtils.java:105) > at > org.apache.giraph.utils.ProgressableUtils.getFutureResult(ProgressableUtils.java:67) > at > org.apache.giraph.graph.GraphTaskManager.processGraphPartitions(GraphTaskManager.java:723) > at > org.apache.giraph.graph.GraphTaskManager.execute(GraphTaskManager.java:270) > at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:92) > ... 7 more > Caused by: java.util.concurrent.ExecutionException: > java.lang.NullPointerException > at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:262) > at java.util.concurrent.FutureTask.get(FutureTask.java:119) > at > org.apache.giraph.utils.ProgressableUtils$FutureWaitable.waitFor(ProgressableUtils.java:232) > at > org.apache.giraph.utils.ProgressableUtils.waitFor(ProgressableUtils.java:137) > ... 12 more > Caused by: java.lang.NullPointerException > at > org.apache.giraph.examples.SimpleMasterComputeVertex.compute(SimpleMasterComputeVertex.java:42) > at > org.apache.giraph.graph.ComputeCallable.computePartition(ComputeCallable.java:204) > at > org.apache.giraph.graph.ComputeCallable.call(ComputeCallable.java:149) > at org.apache.giraph.graph.ComputeCallable.call(ComputeCallable.java:63) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > at java.util.concurrent.FutureTask.run(FutureTask.java:166) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > at java.lang.Thread.run(Thread.java:722) > > > > > On Wed, Feb 13, 2013 at 1:03 PM, Claudio Martella < > claudio.marte...@gmail.com> wrote: > >> Are you sure that is the right line? I do not see how that would cause an >> exception, most probably a for loop on messages right after? >> >> >> On Wed, Feb 13, 2013 at 12:04 PM, Maria Stylianou <mars...@gmail.com>wrote: >> >>> Hey, >>> >>> I am trying to run the example SimpleMasterComputeVertex, but no matter >>> which Input Format and graph I give, it doesn't work. Each worker gives the >>> error: >>> >>> Caused by: java.lang.*NullPointerException* >>> at >>> org.apache.giraph.examples.*SimpleMasterComputeVertex.compute*(SimpleMasterComputeVertex.java:*42*) >>> >>> This line 42 is the first line of the compute() >>> public void compute(Iterable<DoubleWritable> messages){ >>> >>> So I guess, the initialization is not done correctly, because the input >>> file does not have the correct format. >>> >>> Any help would be appreciated, >>> Thanks! >>> Maria >>> -- >>> Maria Stylianou >>> Intern at Telefonica, Barcelona, Spain >>> Master Student of European Master in Distributed >>> Computing<http://www.kth.se/en/studies/programmes/master/em/emdc> >>> Universitat Politècnica de Catalunya - BarcelonaTech, Barcelona, Spain >>> KTH Royal Institute of Technology, Stockholm, Sweden >>> >>> >> >> >> -- >> Claudio Martella >> claudio.marte...@gmail.com >> > > > > -- > Maria Stylianou > Intern at Telefonica, Barcelona, Spain > Master Student of European Master in Distributed > Computing<http://www.kth.se/en/studies/programmes/master/em/emdc> > Universitat Politècnica de Catalunya - BarcelonaTech, Barcelona, Spain > KTH Royal Institute of Technology, Stockholm, Sweden > -- Claudio Martella claudio.marte...@gmail.com