Hey Bhavesh, This would only work if both topics happened to be on the same machine, which generally they wouldn't.
-Jay On Tue, Oct 21, 2014 at 9:14 AM, Bhavesh Mistry <mistry.p.bhav...@gmail.com> wrote: > Hi Neha, > > All, I am saying is that if same byte[] or data has to go to two topics > then, I have to call send twice and with same data has to transfer over the > wire twice (assuming the partition is on same broker for two topics, then > it not efficient.). If Kafka Protocol allows to set multiple topics and > partitions for request then it would me great. > > https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-ProduceRequest > *ProducerRecord > < > http://people.apache.org/~nehanarkhede/kafka-0.9-producer-javadoc/doc/org/apache/kafka/clients/producer/ProducerRecord.html#ProducerRecord(java.lang.String > , > byte[], byte[])>*(java.lang.String *topic*, byte[] key, byte[] value) > > > Thanks, > > Bhavesh > > On Tue, Oct 21, 2014 at 8:26 AM, Neha Narkhede <neha.narkh...@gmail.com> > wrote: > > > I'm not sure I understood your concern about invoking send() twice, once > > with each topic. Are you worried about the network overhead? Whether > Kafka > > does this transparently or not, sending messages to different topics will > > carry some overhead. I think the design of the API is much more intuitive > > and cleaner if a message is sent to a topic partition. > > > > On Mon, Oct 20, 2014 at 9:17 PM, Bhavesh Mistry < > > mistry.p.bhav...@gmail.com> > > wrote: > > > > > Hi Neha, > > > > > > Yes, I understand that but when transmitting single message (I can not > > set > > > List of all topics) Only Single one. So I will to add same message in > > > buffer with different topic. If Kakfa protocol, allows to add multiple > > > topic then message does not have to be re-transmited over the wire to > add > > > to multiple topic. > > > > > > The Producer record only allow one topic. > > > > > > > > > http://people.apache.org/~nehanarkhede/kafka-0.9-producer-javadoc/doc/org/apache/kafka/clients/producer/ProducerRecord.html > > > > > > Thanks for your quick response and I appreciate your help. > > > > > > Thanks, > > > > > > Bhavesh > > > > > > > > > On Mon, Oct 20, 2014 at 9:10 PM, Neha Narkhede < > neha.narkh...@gmail.com> > > > wrote: > > > > > > > Not really. You need producers to send data to Kafka. > > > > > > > > On Mon, Oct 20, 2014 at 9:05 PM, Bhavesh Mistry < > > > > mistry.p.bhav...@gmail.com> > > > > wrote: > > > > > > > > > Hi Kakfa Team, > > > > > > > > > > > > > > > I would like to send a single message to multiple topics (two for > > now) > > > > > without re-transmitting the message from producer to brokers. Is > > this > > > > > possible? > > > > > > > > > > Both Producers Scala and Java does not allow this. I do not have > to > > > do > > > > > this all the time only based on application condition. > > > > > > > > > > > > > > > Thanks in advance of your help !! > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > Bhavesh > > > > > > > > > > > > > > >
