private void sendKillTwoAndReceive(ClusterNode node1, ClusterNode node2, ClusterNode node3) {
log.info("Sending messages on node 1");
HazelcastMQProducer mqProducer = node1.getMqContext().createProducer();
mqProducer.send(destination, "Hello " + msgCounter++);
mqProducer.send(destination, "Hello " + msgCounter++);
// Kill the first two nodes. Again, this may not prove too much because we
// don't know where the original data landed in the cluster. There's a
// chance the "master" data isn't sitting on node1 or node2 anyway.
log.info("Killing node 1");
node1.kill();
log.info("Killing node 2");
node2.kill();
log.info("Attempting receive from node 3");
HazelcastMQConsumer mqConsumer = node3.getMqContext().createConsumer(destination);
String msg = new String(mqConsumer.receiveBody(1, TimeUnit.SECONDS));
log.info("Got message on node 3: " + msg);
mqConsumer.close();
mqConsumer = node3.getMqContext().createConsumer(destination);
msg = new String(mqConsumer.receiveBody(1, TimeUnit.SECONDS));
log.info("Got message on node 3: " + msg);
mqConsumer.close();
}
private void sendKillTwoRestartOneKillOneAndReceive(
ClusterNode node1, ClusterNode node2, ClusterNode node3) throws InterruptedException {
HazelcastMQProducer mqProducer = node1.getMqContext().createProducer();
mqProducer.send(destination, "Hello " + msgCounter++);
mqProducer.send(destination, "Hello " + msgCounter++);
// Kill the first two nodes. Again, this may not prove too much because we
// don't know where the original data landed in the cluster. There's a
// chance the "master" data isn't sitting on node1 or node2 anyway.
node1.kill();
node2.kill();
HazelcastMQConsumer mqConsumer = node3.getMqContext().createConsumer(destination);
String msg = new String(mqConsumer.receiveBody(1, TimeUnit.SECONDS));
log.info("Got message on node 3: " + msg);
mqConsumer.close();
// Now restart node 2 and give it some time to join the cluster and migrate
// data.
node2.restart();
Thread.sleep(10000);
// Now kill node 3. In theory the remaining queued message should have
// migrated to node 2.
node3.kill();
mqConsumer = node2.getMqContext().createConsumer(destination);
msg = new String(mqConsumer.receiveBody(1, TimeUnit.SECONDS));
log.info("Got message on node 2: " + msg);
mqConsumer.close();
}
private void sendKillAndReceiveOnMultipleNodes(
ClusterNode node1, ClusterNode node2, ClusterNode node3) {
HazelcastMQProducer mqProducer = node1.getMqContext().createProducer();
mqProducer.send(destination, "Hello " + msgCounter++);
mqProducer.send(destination, "Hello " + msgCounter++);
// Kill the node. This doesn't prove too much because we don't know where
// the original data landed in the cluster. There's a good chance the
// "master" data isn't sitting on node1 anyway.
node1.kill();
HazelcastMQConsumer mqConsumer = node2.getMqContext().createConsumer(destination);
String msg = new String(mqConsumer.receiveBody(1, TimeUnit.SECONDS));
log.info("Got message on node 2: " + msg);
mqConsumer.close();
mqConsumer = node3.getMqContext().createConsumer(destination);
msg = new String(mqConsumer.receiveBody(1, TimeUnit.SECONDS));
log.info("Got message on node 3: " + msg);
mqConsumer.close();
}