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.HBaseClassTestRule;
021import org.apache.hadoop.hbase.testclassification.LargeTests;
022import org.apache.hadoop.hbase.testclassification.MasterTests;
023import org.junit.ClassRule;
024import org.junit.Test;
025import org.junit.experimental.categories.Category;
026
027@Category({ MasterTests.class, LargeTests.class })
028public class TestStochasticLoadBalancerRegionReplicaMidCluster extends StochasticBalancerTestBase2 {
029
030  @ClassRule
031  public static final HBaseClassTestRule CLASS_RULE =
032    HBaseClassTestRule.forClass(TestStochasticLoadBalancerRegionReplicaMidCluster.class);
033
034  @Test
035  public void testRegionReplicasOnMidCluster() {
036    int numNodes = 200;
037    int numRegions = 40 * 200;
038    int replication = 3; // 3 replicas per region
039    int numRegionsPerServer = 30; // all regions are mostly balanced
040    int numTables = 10;
041    testWithCluster(numNodes, numRegions, numRegionsPerServer, replication, numTables, true, true);
042  }
043}