executor.scheduleWithFixedDelay(addressWriter, 0, 10, TimeUnit.MILLISECONDS);
// Start Avro store joiner bus server
AvroStoreBus<Integer> storeBus = new AvroStoreBusImpl<Integer>("JoinedSources", eventRetention, joiner);
HttpServer server = new HttpServer(new AvroStoreBusResponder<Integer>(storeBus), 8080);
server.start();
// Start a client to print joiner schema
URL url = new URL("http://localhost:8080");
AvroStoreBusClientHttp<Integer> client = new AvroStoreBusClientHttp<Integer>(url, "JoinedSources", joiner.getKeySerializer());
System.out.println(client.getSchema().toString(true));