Looks like you have a protocol buffer version problem. Do you have a dependency on 2.5.0 version of protocol buffers in your pom?
see http://code.google.com/p/protobuf/issues/detail?id=493 On Mon, Oct 28, 2013 at 4:02 PM, wesley dias <[email protected]> wrote: > Hi, > > I am using the latest flume build 1.4 along with hadoop 2.2.0 to collect > twitter stream and write to HDFS sink. However, on writing to HDFS I get > the following error: > > 2013-10-28 09:41:23,481 (SinkRunner-PollingRunner-**DefaultSinkProcessor) > [ERROR - > org.apache.flume.sink.hdfs.**HDFSEventSink.process(**HDFSEventSink.java:422)] > process failed > java.lang.VerifyError: class org.apache.hadoop.hdfs.**protocol.proto.** > ClientNamenodeProtocolProtos$**SetOwnerRequestProto overrides final > method getUnknownFields.()Lcom/**google/protobuf/**UnknownFieldSet; > at java.lang.ClassLoader.**defineClass1(Native Method) > at java.lang.ClassLoader.**defineClass(ClassLoader.java:**800) > at java.security.**SecureClassLoader.defineClass(** > SecureClassLoader.java:142) > at java.net.URLClassLoader.**defineClass(URLClassLoader.**java:449) > at java.net.URLClassLoader.**access$100(URLClassLoader.**java:71) > at java.net.URLClassLoader$1.run(**URLClassLoader.java:361) > at java.net.URLClassLoader$1.run(**URLClassLoader.java:355) > at java.security.**AccessController.doPrivileged(**Native Method) > at java.net.URLClassLoader.**findClass(URLClassLoader.java:**354) > at java.lang.ClassLoader.**loadClass(ClassLoader.java:**425) > at sun.misc.Launcher$**AppClassLoader.loadClass(**Launcher.java:308) > at java.lang.ClassLoader.**loadClass(ClassLoader.java:**358) > at java.lang.Class.**getDeclaredMethods0(Native Method) > at java.lang.Class.**privateGetDeclaredMethods(**Class.java:2531) > at java.lang.Class.**privateGetPublicMethods(Class.**java:2651) > at java.lang.Class.**privateGetPublicMethods(Class.**java:2661) > at java.lang.Class.getMethods(**Class.java:1467) > > I am currently new to flume and any help shall be really appreciated. > > Regards, > > Wesley >
