package org.apache.helix.integration;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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import java.util.Map;
import org.apache.helix.TestEspressoStorageClusterIdealState;
import org.apache.helix.model.IdealState;
import org.apache.helix.tools.ClusterSetup;
import org.apache.helix.util.RebalanceUtil;
import org.testng.Assert;
import org.testng.annotations.Test;
public class TestExpandCluster extends ZkStandAloneCMTestBase
{
@Test
public void testExpandCluster() throws Exception
{
String DB2 = "TestDB2";
int partitions = 100;
int replica = 3;
_setupTool.addResourceToCluster(CLUSTER_NAME, DB2, partitions, STATE_MODEL);
_setupTool.rebalanceStorageCluster(CLUSTER_NAME, DB2, replica, "keyX");
String DB3 = "TestDB3";
_setupTool.addResourceToCluster(CLUSTER_NAME, DB3, partitions, STATE_MODEL);
IdealState testDB0 = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, TEST_DB);
IdealState testDB2 = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, DB2);
IdealState testDB3 = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, DB3);
for (int i = 0; i < 5; i++)
{
String storageNodeName = PARTICIPANT_PREFIX + ":" + (27960 + i);
_setupTool.addInstanceToCluster(CLUSTER_NAME, storageNodeName);
}
String command = "-zkSvr localhost:2183 -expandCluster " + CLUSTER_NAME;
ClusterSetup.processCommandLineArgs(command.split(" "));
IdealState testDB0_1 = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, TEST_DB);
IdealState testDB2_1 = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, DB2);
IdealState testDB3_1 = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, DB3);
Map<String, Object> resultOld2 = RebalanceUtil.buildInternalIdealState(testDB2);
Map<String, Object> result2 = RebalanceUtil.buildInternalIdealState(testDB2_1);
TestEspressoStorageClusterIdealState.Verify(result2, partitions, replica - 1);
Double masterKeepRatio = 0.0, slaveKeepRatio = 0.0;
double[] result = TestEspressoStorageClusterIdealState.compareResult(resultOld2, result2);
masterKeepRatio = result[0];
slaveKeepRatio = result[1];
Assert.assertTrue(masterKeepRatio > 0.49 && masterKeepRatio < 0.51);
Assert.assertTrue(testDB3_1.getRecord().getListFields().size() == 0);
// partitions should stay as same
Assert.assertTrue(testDB0_1.getRecord().getListFields().keySet().containsAll(testDB0.getRecord().getListFields().keySet()));
Assert.assertTrue(testDB0_1.getRecord().getListFields().size() == testDB0.getRecord().getListFields().size());
Assert.assertTrue(testDB2_1.getRecord().getMapFields().keySet().containsAll(testDB2.getRecord().getMapFields().keySet()));
Assert.assertTrue(testDB2_1.getRecord().getMapFields().size() == testDB2.getRecord().getMapFields().size());
Assert.assertTrue(testDB3_1.getRecord().getMapFields().keySet().containsAll(testDB3.getRecord().getMapFields().keySet()));
Assert.assertTrue(testDB3_1.getRecord().getMapFields().size() == testDB3.getRecord().getMapFields().size());
Map<String, Object> resultOld = RebalanceUtil.buildInternalIdealState(testDB0);
Map<String, Object> resultNew = RebalanceUtil.buildInternalIdealState(testDB0_1);
result = TestEspressoStorageClusterIdealState.compareResult(resultOld, resultNew);
masterKeepRatio = result[0];
slaveKeepRatio = result[1];
Assert.assertTrue(masterKeepRatio > 0.49 && masterKeepRatio < 0.51);
}
}