Best way to shutdown is to invoke the shutdown() API. To restart, you need to createMessageStreams()
Thanks, Neha On Oct 11, 2013 6:10 AM, "Tanguy tlrx" <tlrx....@gmail.com> wrote: > Thanks Jun, > > Jira issue has been filled: > https://issues.apache.org/jira/browse/KAFKA-1083 > > By the way, what is the recommended way to start, stop and restart a > ConsumerConnector in the same running JMV? > > Thanks, > > > 2013/10/10 Jun Rao <jun...@gmail.com> > > > Each time we create a new consumer connector, we assign a random consumer > > id by default. You can try setting "consumer.id" to use a fixed consumer > > id. In any case, we probably should deregister those beans when shutting > > down the connector. Could you file a jira? > > > > Thanks, > > > > Jun > > > > > > On Thu, Oct 10, 2013 at 7:55 AM, Tanguy tlrx <tlrx....@gmail.com> wrote: > > > > > It's in 0.8. > > > > > > The JMX names are not exactly the same, but I see 2 beans with similar > > > names, something like: > > > > > > > > > > > > "my_consumer_group-my_consumer-mytopic-my_consumer_hostname.thing.com-1381416134138-3573c8bf-7-FetchQueueSize" > > > > > > -- Tanguy > > > > > > > > > > > > > > > > > > 2013/10/10 Jun Rao <jun...@gmail.com> > > > > > > > Is that in 0.7 or 0.8? JMX won't allow a bean with the same name to > be > > > > registered twice. Do you see 2 beans with similar names? What are the > > > exact > > > > bean names? > > > > > > > > Thanks, > > > > > > > > Jun > > > > > > > > > > > > On Thu, Oct 10, 2013 at 2:42 AM, Tanguy tlrx <tlrx....@gmail.com> > > wrote: > > > > > > > > > Hi all, > > > > > > > > > > In our application, we are currently starting a Kafka Consumer with > > the > > > > > following lines of code: > > > > > > > > > > connector = Consumer.createJavaConsumerConnector(consumerConfig); > > > > > streams = connector .createMessageStreams(map); > > > > > > > > > > Then, each KafkaStream is processed in a dedicated thread per topic > > and > > > > > partition, as documented here > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/Consumer+Group+Example > > > > > > > > > > We need to stop (halt) and restart the consumer. Today, we just > call: > > > > > > > > > > connector.shutdown() > > > > > > > > > > and wait for threads to terminate. > > > > > > > > > > To restart the consumer, we create a new connector: > > > > > > > > > > connector = Consumer.createJavaConsumerConnector(consumerConfig); > > > > > > > > > > When restarting is complete, I can see that a JMX MBean (we use > > > Metrics > > > > > JMXReporter) like "ZookeeperConsumerConnector" is registered twice. > > > This > > > > > bean is not registered when the previous connector instance is shut > > > down. > > > > > > > > > > What is the best way to stop/halt and restart a Consumer using the > > Java > > > > > API? > > > > > > > > > > Is it normal that the MBean is not unregistered at shutdown time? > > > > > > > > > > Thanks, > > > > > > > > > > -- Tanguy > > > > > > > > > > > > > > > > > > > > > -- > > > -- Tanguy > > > twitter @tlrx > > > https://github.com/tlrx > > > > > > > > > -- > -- Tanguy > twitter @tlrx > https://github.com/tlrx >
