/** * 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.test.system; import org.apache.hadoop.hdfs.DFSConfigKeys; import org.apache.hadoop.security.KerberosInfo; import org.apache.hadoop.test.system.DaemonProtocol; /** * Client side API exposed from Datanode. * Actual implementations are likely to be injected * * The protocol has to be annotated so KerberosInfo can be filled in during * creation of a ipc.Client connection */ @KerberosInfo( serverPrincipal = DFSConfigKeys.DFS_DATANODE_USER_NAME_KEY) public interface DNProtocol extends DaemonProtocol { public static final long versionID = 1L; }