@Test
public void testFailover()
throws FlumeException, EventDeliveryException,InterruptedException {
FailoverRpcClient client = null;
Server server1 = RpcTestUtils.startServer(new OKAvroHandler());
Server server2 = RpcTestUtils.startServer(new OKAvroHandler());
Server server3 = RpcTestUtils.startServer(new OKAvroHandler());
Properties props = new Properties();
int s1Port = server1.getPort();
int s2Port = server2.getPort();
int s3Port = server3.getPort();
props.put("client.type", "default_failover");
props.put("hosts", "host1 host2 host3");
props.put("hosts.host1", "127.0.0.1:" + String.valueOf(s1Port));
props.put("hosts.host2", "127.0.0.1:" + String.valueOf(s2Port));
props.put("hosts.host3", "127.0.0.1:" + String.valueOf(s3Port));
client = (FailoverRpcClient) RpcClientFactory.getInstance(props);
List<Event> events = new ArrayList<Event>();
for (int i = 0; i < 50; i++) {
events.add(EventBuilder.withBody("evt: " + i, Charset.forName("UTF8")));
}
client.appendBatch(events);
Assert.assertEquals(client.getLastConnectedServerAddress(),
new InetSocketAddress("127.0.0.1", server1.getPort()));
server1.close();
Thread.sleep(1000L); // wait a second for the close to occur
events = new ArrayList<Event>();
for (int i = 0; i < 50; i++) {
events.add(EventBuilder.withBody("evt: " + i, Charset.forName("UTF8")));
}
client.appendBatch(events);
Assert.assertEquals(new InetSocketAddress("localhost", server2.getPort()),
client.getLastConnectedServerAddress());
server2.close();
Thread.sleep(1000L); // wait a second for the close to occur
client.append(EventBuilder.withBody("Had a sandwich?",
Charset.forName("UTF8")));
Assert.assertEquals(new InetSocketAddress("localhost", server3.getPort()),
client.getLastConnectedServerAddress());
// Bring server 2 back.
Server server4 = RpcTestUtils.startServer(new OKAvroHandler(), s2Port);
server3.close();
Thread.sleep(1000L); // wait a second for the close to occur
events = new ArrayList<Event>();
for (int i = 0; i < 50; i++) {
events.add(EventBuilder.withBody("evt: " + i, Charset.forName("UTF8")));
}
client.appendBatch(events);
Assert.assertEquals(new InetSocketAddress("localhost", s2Port),
client.getLastConnectedServerAddress());
Server server5 = RpcTestUtils.startServer(new OKAvroHandler(), s1Port);
// Make sure we are still talking to server 4
client
.append(EventBuilder.withBody("Had a mango?", Charset.forName("UTF8")));
Assert.assertEquals(new InetSocketAddress("localhost", s2Port),
client.getLastConnectedServerAddress());
server4.close();
Thread.sleep(1000L); // wait a second for the close to occur
events = new ArrayList<Event>();
for (int i = 0; i < 50; i++) {
events.add(EventBuilder.withBody("evt: " + i, Charset.forName("UTF8")));
}
client.appendBatch(events);
Assert.assertEquals(new InetSocketAddress("localhost", s1Port),
client.getLastConnectedServerAddress());
server5.close();
Thread.sleep(1000L); // wait a second for the close to occur
Server server6 = RpcTestUtils.startServer(new OKAvroHandler(), s1Port);
client
.append(EventBuilder.withBody("Had a whole watermelon?",
Charset.forName("UTF8")));
Assert.assertEquals(new InetSocketAddress("localhost", s1Port),
client.getLastConnectedServerAddress());
server6.close();
Thread.sleep(1000L); // wait a second for the close to occur
Server server7 = RpcTestUtils.startServer(new OKAvroHandler(), s3Port);
events = new ArrayList<Event>();
for (int i = 0; i < 50; i++) {
events.add(EventBuilder.withBody("evt: " + i, Charset.forName("UTF8")));
}
client.appendBatch(events);