hadoop

Mahout/Hadoop: org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4
· mahout hadoop

Hadoop: DataNode not starting
· hadoop

Hadoop: HDFS - java.lang.NoSuchMethodError: org.apache.hadoop.fs.FSOutputSummer.<init>(Ljava/util/zip/Checksum;II)V
· hadoop hdfs