| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.hdfs.protocol; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.hdfs.server.protocol.NodeRegistration; |
| |
| /** |
| * This exception is thrown when a node that has not previously |
| * registered is trying to access the name node. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class UnregisteredNodeException extends IOException { |
| private static final long serialVersionUID = -5620209396945970810L; |
| |
| public UnregisteredNodeException(NodeRegistration nodeReg) { |
| super("Unregistered server: " + nodeReg.toString()); |
| } |
| |
| /** |
| * The exception is thrown if a different data-node claims the same |
| * storage id as the existing one. |
| * |
| * @param nodeID unregistered data-node |
| * @param storedNode data-node stored in the system with this storage id |
| */ |
| public UnregisteredNodeException(DatanodeID nodeID, DatanodeInfo storedNode) { |
| super("Data node " + nodeID.getName() |
| + " is attempting to report storage ID " |
| + nodeID.getStorageID() + ". Node " |
| + storedNode.getName() + " is expected to serve this storage."); |
| } |
| } |