| /** |
| * 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.common; |
| |
| |
| /************************************ |
| * Some handy internal HDFS constants |
| * |
| ************************************/ |
| |
| public interface HdfsConstants { |
| /** |
| * Type of the node |
| */ |
| static public enum NodeType { |
| NAME_NODE, |
| DATA_NODE; |
| } |
| |
| // Startup options |
| static public enum StartupOption{ |
| FORMAT ("-format"), |
| REGULAR ("-regular"), |
| UPGRADE ("-upgrade"), |
| ROLLBACK("-rollback"), |
| FINALIZE("-finalize"), |
| IMPORT ("-importCheckpoint"); |
| |
| private String name = null; |
| private StartupOption(String arg) {this.name = arg;} |
| public String getName() {return name;} |
| } |
| |
| // Timeouts for communicating with DataNode for streaming writes/reads |
| public static int READ_TIMEOUT = 60 * 1000; |
| public static int WRITE_TIMEOUT = 8 * 60 * 1000; |
| public static int WRITE_TIMEOUT_EXTENSION = 5 * 1000; //for write pipeline |
| |
| } |
| |