Re: KafkaStream and Kafka consumer group

I see. Nevertheless, you should be able to use multiple producers. If you increase the number of tasks, you should be able to create an own producer for each task and thus increasing the write throughput. -Matthias On 06/11/2016 10:19 PM, Saeed Ansari wrote: > Sorry, I mean KafkaProducer! > >

Re: KafkaStream and Kafka consumer group

Sorry, I mean KafkaProducer! On Sat, Jun 11, 2016 at 4:18 PM, Saeed Ansari wrote: > When I read from stream, I create AKKA actors for processing events. I am > not processing them in the stream, as the result > I do not have KStream to write into it. So I use

Re: KafkaStream and Kafka consumer group

When I read from stream, I create AKKA actors for processing events. I am not processing them in the stream, as the result I do not have KStream to write into it. So I use KafkaConsumer instead. On Sat, Jun 11, 2016 at 7:13 AM, Matthias J. Sax wrote: > Do you instantiate

Re: KafkaStream and Kafka consumer group

Do you instantiate KafkaProduer in your user code? Why no use KStream.to("topic-name") ? -Matthias On 06/10/2016 12:28 AM, Saeed Ansari wrote: > Thank you Eno, > Adding more threads extremely increased the throughput of stream. As I said > after processing I send the event to another topic.

Re: KafkaStream and Kafka consumer group

Thank you Eno, Adding more threads extremely increased the throughput of stream. As I said after processing I send the event to another topic. For that I was opening a connection via KafkaProducer to the cluster and I think that was the issue. Now there is just one producer for sending events to

Re: KafkaStream and Kafka consumer group

Hi Saeed, There could be several reasons why things appear slow and it is difficult to say without knowing the exact details of the setup and the results you are observing. One thing to check is the number of threads you have assigned to the Kafka Stream application. By default just one thread

Re: KafkaStream and Kafka consumer group

Hi Eno, Thank you for the response. Actually I did not know it automatically assigns partitions to consumers. Now I have one Kafkastream reading from 12 partitions, like below: Controller is an actor that I am sending the message to and then it creates child actors to send messages out.

Re: KafkaStream and Kafka consumer group

Hi Saeed, Kafka Streams takes care of assigning partitions to consumers automatically for you. You don't have to write anything explicit to do that. See WordCountDemo.java as an example. Was there another reason you wanted control over partition assignment? Thanks Eno > On 7 Jun 2016, at

KafkaStream and Kafka consumer group

Hi, I have started a small Kafka streaming application. I need to assign partitions to consumers in a consumer group. I am not sure where to start and how to structure consumer groups in KafkaStreams. I found that there is a StreamPartitionAssignor that can be added to config, but still I do not