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.concurrent.atomic.AtomicBoolean;
import org.apache.helix.NotificationContext;
import org.apache.helix.TestHelper;
import org.apache.helix.ZkTestHelper;
import org.apache.helix.api.id.PartitionId;
import org.apache.helix.manager.zk.MockParticipant;
import org.apache.helix.manager.zk.MockController;
import org.apache.helix.mock.participant.MockTransition;
import org.apache.helix.model.Message;
import org.apache.helix.testutil.ZkTestBase;
import org.apache.helix.tools.ClusterStateVerifier;
import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
import org.apache.log4j.Logger;
import org.testng.Assert;
import org.testng.annotations.Test;
public class TestSessionExpiryInTransition extends ZkTestBase {
private static Logger LOG = Logger.getLogger(TestSessionExpiryInTransition.class);
public class SessionExpiryTransition extends MockTransition {
private final AtomicBoolean _done = new AtomicBoolean();
private final MockParticipant _participant;
public SessionExpiryTransition(MockParticipant participant) {
_participant = participant;
}
@Override
public void doTransition(Message message, NotificationContext context) {
String instance = message.getTgtName();
PartitionId partition = message.getPartitionId();
if (instance.equals("localhost_12918") && partition.toString().equals("TestDB0_1") // TestDB0_1
// is SLAVE
// on localhost_12918
&& _done.getAndSet(true) == false) {
try {
ZkTestHelper.expireSession(_participant.getZkClient());
} catch (Exception e) {
LOG.error("Exception expire zk-session", e);
}
}
}
}
@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, _zkaddr, 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
MockController controller =
new MockController(_zkaddr, clusterName, "controller_0");
controller.syncStart();
// start participants
for (int i = 0; i < 5; i++) {
String instanceName = "localhost_" + (12918 + i);
participants[i] = new MockParticipant(_zkaddr, clusterName, instanceName);
participants[i].setTransition(new SessionExpiryTransition(participants[i]));
participants[i].syncStart();
}
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(_zkaddr,
clusterName));
Assert.assertTrue(result);
// clean up
controller.syncStop();
for (int i = 0; i < 5; i++) {
participants[i].syncStop();
}
System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}
}