Hi Gwen, Thanks for the great and fast reply! How many different keys can Kafka support ?
Harold On Mon, Dec 15, 2014 at 10:46 AM, Gwen Shapira <gshap...@cloudera.com> wrote: > > When you send messages to Kafka you send a <key,value> pair. The key > can include the user id. > > Here's how: > > KeyedMessage<String, byte[]> data = new KeyedMessage<String, byte[]> > (user_id, user_id, event); > > producer.send(data); > > Hope this helps, > Gwen > > On Mon, Dec 15, 2014 at 10:29 AM, Harold Nguyen <har...@nexgate.com> > wrote: > > Hello Kafka Experts! > > > > Sorry if this has been answered before - I was hoping for a quick > response > > to a naive questions for a newbie like myself! > > > > If I have multiple users, how do I split the streams so that they > > correspond with different user ids ? > > > > Suppose I have tens of thousands of user ids that I want to keep track > of. > > Is there a way to write to Kafka and associate a "key" with it ? (The key > > being the user id?) Or is there a better way to do this ? > > > > Thanks so much for your time! > > > > Harold >
