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skipped first dispatch on vmtransport needed a better test - reworked to avoid busy loop on full and ensured sync on started for enqueue. Sort FailoverStaticNetworkTest and NetworkOfTwentyBrokersTest intermittent failures

This commit is contained in:
gtully 2015-05-13 13:56:24 +01:00
parent ccbbecb4a4
commit b8a20e9ef6
2 changed files with 75 additions and 38 deletions
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12
activemq-broker/src/main/java/org/apache/activemq/transport/vm/VMTransport.java
View File

@ -100,11 +100,23 @@ public class VMTransport implements Transport, Task {
if (!peer.started.get()) {
LinkedBlockingQueue<Object> pending = peer.getMessageQueue();
int sleepTimeMillis;
boolean accepted = false;
do {
sleepTimeMillis = 0;
// the pending queue is drained on start so we need to ensure we add before
// the drain commences, otherwise we never get the command dispatched!
synchronized (peer.started) {
if (!peer.started.get()) {
accepted = pending.offer(command);
if (!accepted) {
sleepTimeMillis = 500;
}
}
}
// give start thread a chance if we will loop
TimeUnit.MILLISECONDS.sleep(sleepTimeMillis);
} while (!accepted && !peer.started.get());
if (accepted) {
return;

51
activemq-unit-tests/src/test/java/org/apache/activemq/transport/vm/VMTransportBrokerNameTest.java
View File

@ -19,12 +19,11 @@ package org.apache.activemq.transport.vm;
import java.io.IOException;
import java.net.URI;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import javax.jms.Connection;
import junit.framework.TestCase;
import org.junit.Test;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerRegistry;
@ -33,11 +32,16 @@ import org.apache.activemq.transport.Transport;
import org.apache.activemq.transport.TransportFactory;
import org.apache.activemq.transport.TransportListener;
public class VMTransportBrokerNameTest extends TestCase {
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
public class VMTransportBrokerNameTest {
private static final String MY_BROKER = "myBroker";
final String vmUrl = "vm:(broker:(tcp://localhost:61616)/" + MY_BROKER + "?persistent=false)";
@Test
public void testBrokerName() throws Exception {
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(new URI(vmUrl));
ActiveMQConnection c1 = (ActiveMQConnection) cf.createConnection();
@ -55,13 +59,36 @@ public class VMTransportBrokerNameTest extends TestCase {
c2.close();
}
public void testBrokerInfoClientAsync() throws Exception {
@Test
public void testBrokerInfoReceiptClientAsync() throws Exception {
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(new URI(vmUrl));
ActiveMQConnection c1 = (ActiveMQConnection) cf.createConnection();
assertTrue("Transport has name in it: " + c1.getTransport(), c1.getTransport().toString().contains(MY_BROKER));
for (int i=0;i<20; i++) {
final int numIterations = 400;
final CountDownLatch successLatch = new CountDownLatch(numIterations);
ExecutorService executor = Executors.newFixedThreadPool(100);
for (int i = 0; i < numIterations; i++) {
executor.submit(new Runnable() {
@Override
public void run() {
try {
verifyBrokerInfo(successLatch);
} catch (Exception ignored) {
ignored.printStackTrace();
}
}
});
}
executor.shutdown();
executor.awaitTermination(20, TimeUnit.SECONDS);
c1.close();
assertTrue("all success: " + successLatch.getCount(), successLatch.await(1, TimeUnit.SECONDS));
}
public void verifyBrokerInfo(CountDownLatch success) throws Exception {
final CountDownLatch gotBrokerInfo = new CountDownLatch(1);
Transport transport = TransportFactory.connect(new URI("vm://" + MY_BROKER + "?async=false"));
transport.setTransportListener(new TransportListener() {
@ -88,11 +115,9 @@ public class VMTransportBrokerNameTest extends TestCase {
}
});
transport.start();
assertTrue("got broker info on iteration:" + i, gotBrokerInfo.await(5, TimeUnit.SECONDS));
if (gotBrokerInfo.await(5, TimeUnit.SECONDS)) {
success.countDown();
}
transport.stop();
}
c1.close();
}
}