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• HiveServer2HAInstanceSet.java

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org.apache.hive.service.server.HiveServer2HAInstanceSet Maven / Gradle / Ivy

/**
 * 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.hive.service.server;

import org.apache.hadoop.hive.registry.ServiceInstanceSet;

public interface HiveServer2HAInstanceSet extends ServiceInstanceSet {

  /**
   * In Active/Passive setup, returns current active leader.
   *
   * @return leader instance
   */
  HiveServer2Instance getLeader();
}