> > I am wondering does metadata of Kafka stores producer/consumer information. > > As I start any producer,I provide a broker-list to it.But producer must be > connecting to one of the broker to send data(as per Im gettiing the > things).Similarly I can start more producer by giving a broker-list in the > start command. > > So a broker must be storing the information about which producer is > handshaking with it(as a producer will connect to only one broker at any > time).
Not really - well, brokers obviously have to maintain these connections from producers but it maintains no additional per-producer state. > > Same case goes with consumer. Same for consumers. For high-level consumers, the consumers themselves maintain state (e.g., registration, partition ownership, offsets) in zookeeper but there is no per-consumer state on the broker (although with KAFKA-1000, we will be moving offset management to the broker). Thanks, Joel
