I am trying to write a Mapper/Reducer for hbase and I added the jar. However after adding the jar file in lib directory, I cannot start hbase. I want to debug what is going wrong? How can I change the log level? Will it help? Following is the exception:
java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMaster at org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:143) at org.apache.hadoop.hbase.LocalHBaseCluster.addMaster(LocalHBaseCluster.java:217) at org.apache.hadoop.hbase.LocalHBaseCluster.(LocalHBaseCluster.java:153) at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:224) at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:139) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:126) at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:2290) Caused by: java.lang.NoSuchMethodError: org.apache.hadoop.ipc.RPC.getProtocolProxy(Ljava/lang/Class;JLjava/net/InetSocketAddress;Lorg/apache/hadoop/security/UserGroupInformation;Lorg/apache/hadoop/conf/Configuration;Ljavax/net/SocketFactory;ILorg/apache/hadoop/io/retry/RetryPolicy;Ljava/util/concurrent/atomic/AtomicBoolean;)Lorg/apache/hadoop/ipc/ProtocolProxy; at org.apache.hadoop.hdfs.NameNodeProxies.createNNProxyWithClientProtocol(NameNodeProxies.java:420) at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:316) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:178) at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:665) at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:601) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:148) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2591) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2625) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2607) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296) at org.apache.hadoop.hbase.util.FSUtils.getRootDir(FSUtils.java:1004) at org.apache.hadoop.hbase.regionserver.HRegionServer.(HRegionServer.java:562) at org.apache.hadoop.hbase.master.HMaster.(HMaster.java:364) at org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMaster.(HMasterCommandLine.java:307) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:408) at org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:139) ... 7 more
