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 java.time.Duration; 021import org.apache.hadoop.hbase.HBaseClassTestRule; 022import org.apache.hadoop.hbase.testclassification.LargeTests; 023import org.apache.hadoop.hbase.testclassification.MasterTests; 024import org.junit.ClassRule; 025import org.junit.Test; 026import org.junit.experimental.categories.Category; 027 028@Category({ MasterTests.class, LargeTests.class }) 029public class TestStochasticLoadBalancerMidCluster extends StochasticBalancerTestBase { 030 031 @ClassRule 032 public static final HBaseClassTestRule CLASS_RULE = 033 HBaseClassTestRule.forClass(TestStochasticLoadBalancerMidCluster.class); 034 035 @Test 036 public void testMidCluster() { 037 int numNodes = 100; 038 int numRegions = 10000; 039 int numRegionsPerServer = 60; // all servers except one 040 int replication = 1; 041 int numTables = 40; 042 testWithClusterWithIteration(numNodes, numRegions, numRegionsPerServer, replication, numTables, 043 true, true); 044 } 045 046 @Test 047 public void testMidCluster2() { 048 int numNodes = 200; 049 int numRegions = 100000; 050 int numRegionsPerServer = 40; // all servers except one 051 int replication = 1; 052 int numTables = 400; 053 // num large num regions means may not always get to best balance with one run 054 boolean assertFullyBalanced = false; 055 setMaxRunTime(Duration.ofMillis(2500)); 056 testWithClusterWithIteration(numNodes, numRegions, numRegionsPerServer, replication, numTables, 057 assertFullyBalanced, false); 058 } 059 060 @Test 061 public void testMidCluster3() { 062 int numNodes = 100; 063 int numRegions = 2000; 064 int numRegionsPerServer = 9; // all servers except one 065 int replication = 1; 066 int numTables = 110; 067 testWithClusterWithIteration(numNodes, numRegions, numRegionsPerServer, replication, numTables, 068 true, true); 069 // TODO(eclark): Make sure that the tables are well distributed. 070 } 071}