Could you try starting the consumer first (and enable gzip in the producer)?
Thanks,
Jun
On Mon, Jul 8, 2013 at 9:37 PM, Scott Wang <
scott.w...@rumbleentertainment.com> wrote:
> No, I did not start the consumer before the producer. I actually started
> the producer first and nothing showed up in the consumer unless I commented
> out this line -- props.put("compression.codec", "gzip"). If I commented
> out the compression codec, everything just works.
>
>
> On Mon, Jul 8, 2013 at 9:07 PM, Jun Rao <jun...@gmail.com> wrote:
>
> > Did you start the consumer before the producer? Be default, the consumer
> > gets only the new data?
> >
> > Thanks,
> >
> > Jun
> >
> >
> > On Mon, Jul 8, 2013 at 2:53 PM, Scott Wang <
> > scott.w...@rumbleentertainment.com> wrote:
> >
> > > I am testing with Kafka 0.8 beta and having problem of receiving
> message
> > in
> > > consumer. There is no error so does anyone have any insights. When I
> > > commented out the "compression.code" everything works fine.
> > >
> > > My producer:
> > > public class TestKafka08Prod {
> > >
> > > public static void main(String [] args) {
> > >
> > > Producer<Integer, String> producer = null;
> > > try {
> > > Properties props = new Properties();
> > > props.put("metadata.broker.list", "localhost:9092");
> > > props.put("serializer.class",
> > > "kafka.serializer.StringEncoder");
> > > props.put("producer.type", "sync");
> > > props.put("request.required.acks","1");
> > > props.put("compression.codec", "gzip");
> > > ProducerConfig config = new ProducerConfig(props);
> > > producer = new Producer<Integer, String>(config);
> > > int j=0;
> > > for(int i=0; i<10; i++) {
> > > KeyedMessage<Integer, String> data = new
> > > KeyedMessage<Integer, String>("test-topic", "test-message: "+i+"
> > > "+System.currentTimeMillis());
> > > producer.send(data);
> > >
> > > }
> > >
> > > } catch (Exception e) {
> > > System.out.println("Error happened: ");
> > > e.printStackTrace();
> > > } finally {
> > > if(null != null) {
> > > producer.close();
> > > }
> > >
> > > System.out.println("Ened of Sending");
> > > }
> > >
> > > System.exit(0);
> > > }
> > > }
> > >
> > >
> > > My consumer:
> > >
> > > public class TestKafka08Consumer {
> > > public static void main(String [] args) throws
> UnknownHostException,
> > > SocketException {
> > >
> > > Properties props = new Properties();
> > > props.put("zookeeper.connect", "localhost:2181/kafka_0_8");
> > > props.put("group.id", "test08ConsumerId");
> > > props.put("zk.sessiontimeout.ms", "4000");
> > > props.put("zk.synctime.ms", "2000");
> > > props.put("autocommit.interval.ms", "1000");
> > >
> > > ConsumerConfig consumerConfig = new ConsumerConfig(props);
> > >
> > > ConsumerConnector consumerConnector =
> > > kafka.consumer.Consumer.createJavaConsumerConnector(consumerConfig);
> > >
> > > String topic = "test-topic";
> > > Map<String, Integer> topicCountMap = new HashMap<String,
> > > Integer>();
> > > topicCountMap.put(topic, new Integer(1));
> > > Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap =
> > > consumerConnector.createMessageStreams(topicCountMap);
> > > KafkaStream<byte[], byte[]> stream =
> > > consumerMap.get(topic).get(0);
> > >
> > > ConsumerIterator<byte[], byte[]> it = stream.iterator();
> > >
> > > int counter=0;
> > > while(it.hasNext()) {
> > > try {
> > > String fromPlatform = new String(it.next().message());
> > > System.out.println("The messages: "+fromPlatform);
> > > } catch(Exception e) {
> > > e.printStackTrace();
> > > }
> > > }
> > > System.out.println("SystemOut");
> > > }
> > > }
> > >
> > >
> > > Thanks
> > >
> >
>
