The reason is the console consumer deletes the previous state information from zookeeper when given the from-beginning option. So effectively only the 2nd consumer instance is alive. You can run ConsumerShell instead.
Thanks, Neha On Thursday, April 18, 2013, Eric Sites wrote: > Jun, > > I have been trying to test 0.8 using two consumers on the same group ID. > > When I start the second consumer the first stops receiving messages. > > Can you help? > > Single Kafka server, single topic, 3 partitions, single Zookeeper. > > 1 console consumer running in one session. > > 1 console consumer running in another session. > > sudo /opt/kafka/bin/kafka-list-topic.sh --zookeeper localhost:2181 > topic: Files partition: 0 leader: 0 replicas: 0 isr: 0 > topic: Files partition: 1 leader: 0 replicas: 0 isr: 0 > topic: Files partition: 2 leader: 0 replicas: 0 isr: 0 > > # Start the producer, and type some test messages > sudo /opt/kafka/bin/kafka-console-producer.sh --broker-list localhost:9092 > --topic Files > > # Start first consumer > sudo /opt/kafka/bin/kafka-console-consumer.sh --zookeeper localhost:2181 > --topic Files --from-beginning --group 1 > > # Start the second consumer, type some more messages on the producer and > only this consumer get the messages > sudo /opt/kafka/bin/kafka-console-consumer.sh --zookeeper localhost:2181 > --topic Files --from-beginning --group 1 > > > > > Thanks, > Eric > > On 4/19/13 12:28 AM, "Jun Rao" <jun...@gmail.com <javascript:;>> wrote: > > >We have been testing 0.8 at LinkedIn for some time. We plan to release an > >0.8 beta version next week. > > > >Thanks, > > > >Jun > > > > > >On Thu, Apr 18, 2013 at 12:29 PM, Itai Frenkel > ><it...@gigaspaces.com<javascript:;> > > > >wrote: > > > >> Hello, > >> > >> We're considering to use Kafka, and would like to know the Java/ > >> Scala/Kafka version combination in which it is being used in production. > >> The wiki "Operations" page states that "We are running Kafka 0.7 right > >>now > >> but may move to trunk as we fix bugs." > >> > >> While I read here that 0.8 was scheduled to be in production in LinkedIn > >> about a month ago. > >> > >> > >> > http://search-hadoop.com/m/4TaT4gjlc12/kafka+production+version&subj=Re+W > >>hich+version+to+choose+gt+0+8+or+0+72 > >> > >> Regards, > >> Itai > >> > >
