hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestStochasticLoadBalancerRegionReplicaHighReplication.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.hadoop.hbase.master.balancer;

import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;

@Category({ MasterTests.class, MediumTests.class })
public class TestStochasticLoadBalancerRegionReplicaHighReplication
  extends StochasticBalancerTestBase2 {

  @ClassRule
  public static final HBaseClassTestRule CLASS_RULE =
    HBaseClassTestRule.forClass(TestStochasticLoadBalancerRegionReplicaHighReplication.class);

  @Test
  public void testRegionReplicasOnMidClusterHighReplication() {
    conf.setLong(StochasticLoadBalancer.MAX_STEPS_KEY, 4000000L);
    conf.setLong("hbase.master.balancer.stochastic.maxRunningTime", 120 * 1000); // 120 sec
    loadBalancer.setConf(conf);
    int numNodes = 40;
    int numRegions = 6 * numNodes;
    int replication = 40; // 40 replicas per region, one for each server
    int numRegionsPerServer = 5;
    int numTables = 10;
    testWithCluster(numNodes, numRegions, numRegionsPerServer, replication, numTables, false, true);
  }
}