001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.master.balancer;
019
020import org.apache.hadoop.hbase.testclassification.LargeTests;
021import org.apache.hadoop.hbase.testclassification.MasterTests;
022import org.junit.jupiter.api.Tag;
023import org.junit.jupiter.api.Test;
024
025@Tag(MasterTests.TAG)
026@Tag(LargeTests.TAG)
027public class TestStochasticLoadBalancerRegionReplicaMidCluster extends StochasticBalancerTestBase2 {
028
029  @Test
030  public void testRegionReplicasOnMidCluster() {
031    int numNodes = 200;
032    int numRegions = 40 * 200;
033    int replication = 3; // 3 replicas per region
034    int numRegionsPerServer = 30; // all regions are mostly balanced
035    int numTables = 10;
036    conf.setLong(StochasticLoadBalancer.MAX_RUNNING_TIME_KEY, 10_000);
037    testWithClusterWithIteration(numNodes, numRegions, numRegionsPerServer, replication, numTables,
038      true, true);
039  }
040}