| /** |
| * 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.server.namenode; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| /** |
| * This exception is thrown when the name node is in safe mode. |
| * Client cannot modified namespace until the safe mode is off. |
| * |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class SafeModeException extends IOException { |
| private static final long serialVersionUID = 1L; |
| |
| public SafeModeException() {} |
| |
| public SafeModeException(String text, FSNamesystem.SafeModeInfo mode ) { |
| super(text + ". Name node is in safe mode.\n" + mode.getTurnOffTip()); |
| } |
| |
| } |