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.MasterTests;
022import org.apache.hadoop.hbase.testclassification.MediumTests;
023import org.junit.ClassRule;
024import org.junit.Test;
025import org.junit.experimental.categories.Category;
026
027@Category({ MasterTests.class, MediumTests.class })
028public class TestStochasticLoadBalancerRegionReplicaHighReplication
029  extends StochasticBalancerTestBase2 {
030
031  @ClassRule
032  public static final HBaseClassTestRule CLASS_RULE =
033    HBaseClassTestRule.forClass(TestStochasticLoadBalancerRegionReplicaHighReplication.class);
034
035  @Test
036  public void testRegionReplicasOnMidClusterHighReplication() {
037    conf.setLong(StochasticLoadBalancer.MAX_STEPS_KEY, 4000000L);
038    conf.setLong("hbase.master.balancer.stochastic.maxRunningTime", 120 * 1000); // 120 sec
039    loadBalancer.onConfigurationChange(conf);
040    int numNodes = 40;
041    int numRegions = 6 * numNodes;
042    int replication = 40; // 40 replicas per region, one for each server
043    int numRegionsPerServer = 5;
044    int numTables = 10;
045    testWithCluster(numNodes, numRegions, numRegionsPerServer, replication, numTables, false, true);
046  }
047}