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
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.helix.TestHelper;
import org.apache.helix.TestHelper.StartCMResult;
import org.apache.helix.controller.HelixControllerMain;
import org.apache.helix.manager.zk.ZNRecordSerializer;
import org.apache.helix.manager.zk.ZkClient;
import org.apache.helix.tools.ClusterSetup;
import org.apache.helix.tools.ClusterStateVerifier;
import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
import org.apache.helix.tools.ClusterStateVerifier.MasterNbInExtViewVerifier;
import org.apache.log4j.Logger;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
/**
*
* setup a storage cluster and start a zk-based cluster controller in stand-alone mode
* start 5 dummy participants verify the current states at end
*/
public class ZkStandAloneCMTestBase extends ZkIntegrationTestBase
{
private static Logger LOG =
Logger.getLogger(ZkStandAloneCMTestBase.class);
protected static final int NODE_NR = 5;
protected static final int START_PORT = 12918;
protected static final String STATE_MODEL = "MasterSlave";
protected static final String TEST_DB = "TestDB";
protected static final int _PARTITIONS = 20;
protected ClusterSetup _setupTool = null;
protected final String CLASS_NAME = getShortClassName();
protected final String CLUSTER_NAME = CLUSTER_PREFIX + "_"
+ CLASS_NAME;
protected Map<String, StartCMResult> _startCMResultMap =
new HashMap<String, StartCMResult>();
protected ZkClient _zkClient;
int _replica = 3;
@BeforeClass
public void beforeClass() throws Exception
{
// Logger.getRootLogger().setLevel(Level.INFO);
System.out.println("START " + CLASS_NAME + " at "
+ new Date(System.currentTimeMillis()));
_zkClient = new ZkClient(ZK_ADDR);
_zkClient.setZkSerializer(new ZNRecordSerializer());
String namespace = "/" + CLUSTER_NAME;
if (_zkClient.exists(namespace))
{
_zkClient.deleteRecursive(namespace);
}
_setupTool = new ClusterSetup(ZK_ADDR);
// setup storage cluster
_setupTool.addCluster(CLUSTER_NAME, true);
_setupTool.addResourceToCluster(CLUSTER_NAME, TEST_DB, _PARTITIONS, STATE_MODEL);
for (int i = 0; i < NODE_NR; i++)
{
String storageNodeName = PARTICIPANT_PREFIX + ":" + (START_PORT + i);
_setupTool.addInstanceToCluster(CLUSTER_NAME, storageNodeName);
}
_setupTool.rebalanceStorageCluster(CLUSTER_NAME, TEST_DB, _replica);
// start dummy participants
for (int i = 0; i < NODE_NR; i++)
{
String instanceName = PARTICIPANT_PREFIX + "_" + (START_PORT + i);
if (_startCMResultMap.get(instanceName) != null)
{
LOG.error("fail to start particpant:" + instanceName
+ "(participant with same name already exists)");
}
else
{
StartCMResult result =
TestHelper.startDummyProcess(ZK_ADDR, CLUSTER_NAME, instanceName);
_startCMResultMap.put(instanceName, result);
}
}
// start controller
String controllerName = CONTROLLER_PREFIX + "_0";
StartCMResult startResult =
TestHelper.startController(CLUSTER_NAME,
controllerName,
ZK_ADDR,
HelixControllerMain.STANDALONE);
_startCMResultMap.put(controllerName, startResult);
boolean result =
ClusterStateVerifier.verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR,
CLUSTER_NAME));
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
CLUSTER_NAME));
Assert.assertTrue(result);
}
@AfterClass
public void afterClass() throws Exception
{
/**
* shutdown order: 1) disconnect the controller 2) disconnect participants
*/
StartCMResult result;
Iterator<Entry<String, StartCMResult>> it = _startCMResultMap.entrySet().iterator();
while (it.hasNext())
{
String instanceName = it.next().getKey();
if (instanceName.startsWith(CONTROLLER_PREFIX))
{
result = _startCMResultMap.get(instanceName);
result._manager.disconnect();
result._thread.interrupt();
it.remove();
}
}
Thread.sleep(100);
it = _startCMResultMap.entrySet().iterator();
while (it.hasNext())
{
String instanceName = it.next().getKey();
result = _startCMResultMap.get(instanceName);
result._manager.disconnect();
result._thread.interrupt();
it.remove();
}
_zkClient.close();
// logger.info("END at " + new Date(System.currentTimeMillis()));
System.out.println("END " + CLASS_NAME + " at "
+ new Date(System.currentTimeMillis()));
}
}