package org.apache.helix.integration;
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* 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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import java.util.Date;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.helix.InstanceType;
import org.apache.helix.NotificationContext;
import org.apache.helix.TestHelper;
import org.apache.helix.ZkTestHelper;
import org.apache.helix.ZkTestHelper.TestZkHelixManager;
import org.apache.helix.mock.controller.ClusterController;
import org.apache.helix.mock.participant.MockParticipant;
import org.apache.helix.mock.participant.MockTransition;
import org.apache.helix.model.Message;
import org.apache.helix.tools.ClusterStateVerifier;
import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.testng.Assert;
public class TestSessionExpiryInTransition extends ZkIntegrationTestBase
{
public class SessionExpiryTransition extends MockTransition
{
private final AtomicBoolean _done = new AtomicBoolean();
@Override
public void doTransition(Message message, NotificationContext context)
{
TestZkHelixManager manager = (TestZkHelixManager)context.getManager();
String instance = message.getTgtName();
String partition = message.getPartitionName();
if (instance.equals("localhost_12918")
&& partition.equals("TestDB0_1") // TestDB0_1 is SLAVE on localhost_12918
&& _done.getAndSet(true) == false)
{
try
{
ZkTestHelper.expireSession(manager.getZkClient());
}
catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
// TODO: disable test first until we have a clean design in handling zk disconnect/session-expiry
// when there is pending messages
// @Test
public void testSessionExpiryInTransition() throws Exception
{
Logger.getRootLogger().setLevel(Level.WARN);
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
final String clusterName = className + "_" + methodName;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
MockParticipant[] participants = new MockParticipant[5];
TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
"localhost", // participant name prefix
"TestDB", // resource name prefix
1, // resources
10, // partitions per resource
5, // number of nodes
3, // replicas
"MasterSlave",
true); // do rebalance
// start controller
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// start participants
for (int i = 0; i < 5; i++)
{
String instanceName = "localhost_" + (12918 + i);
TestZkHelixManager manager =
new TestZkHelixManager(clusterName,
instanceName,
InstanceType.PARTICIPANT,
ZK_ADDR);
participants[i] = new MockParticipant(manager, new SessionExpiryTransition());
participants[i].syncStart();
}
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// clean up
for (int i = 0; i < 5; i++)
{
participants[i].syncStop();
}
Thread.sleep(2000);
controller.syncStop();
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
}