Hi, I'm using giraph-1.2 for my master thesis in computer science. I developed in giraph the calculus of 4-profiles like eelenberg.github.io/Elenberg4profileWWW16.pdf I succesfully configured and runned giraph-1.2 and hadoop-2.5.1 in pseudo distributed mode on my local pc with this configuration <https://we.tl/dB0PmGhUPX>.
In pseudo distributed mode I launch my giraph program with following parameters: giraph MY_JAR.jar SUPERSTEP0_CLASS -ca giraph.master.observers=MY_OBSERVER_CLASS -mc MY_MASTER_CLASS -eif MY_CUSTOM_INPUT_FORMAT -eip input.txt -vof org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op output -w 1 -ca giraph.SplitMasterWorker=false -ca io.edge.reverse.duplicator=true Then I tryed to use amazon ec2 with a simple cluster of 3 nodes with this other configuration <https://we.tl/Gbv9q0nQ7h> but I obtain the error below. I also re-tryed pseudo-distributed mode in amazon ec2 with only 1 node and I obtain the same error below, but on my local pc it works!!! I'm using ubuntu 16.04 both in local and in ec2. Obviously I tried an hadoop example on my ec2 cluster and it works. Please help me because I'm blocked with my master this for this error! I red many forums about this error and I checked many times that I have only protobuf-java-2.5.0.jar inside hadoop-2.5.2 and giraph-1.2 both in ec2 and in my local pc. FATAL [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Error starting MRAppMaster java.lang.VerifyError: class org.apache.hadoop.yarn.proto.YarnProtos$ApplicationIdProto overrides final method getUnknownFields.()Lcom/google/protobuf/UnknownFieldSet; at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getConstructor0(Class.java:3075) at java.lang.Class.getConstructor(Class.java:1825) at org.apache.hadoop.yarn.factories.impl.pb.RecordFactoryPBImpl.newRecordInstance(RecordFactoryPBImpl.java:62) at org.apache.hadoop.yarn.util.Records.newRecord(Records.java:36) at org.apache.hadoop.yarn.api.records.ApplicationId.newInstance(ApplicationId.java:49) at org.apache.hadoop.yarn.util.ConverterUtils.toApplicationAttemptId(ConverterUtils.java:137) at org.apache.hadoop.yarn.util.ConverterUtils.toContainerId(ConverterUtils.java:177) at org.apache.hadoop.mapreduce.v2.app.MRAppMaster.main(MRAppMaster.java:1391) INFO [main] org.apache.hadoop.util.ExitUtil: Exiting with status 1 Links of configurafion files works until 4 August 2018 but I can re-send them. Many Thanks Best Regards -- Francesco Sclano
