In 0.8, we support producing to a random partition if the key for produce request is null. In this case, the producer picks a random partition to send the messages to.
I agree that this functionality should not be in the log manager (it isn't in 0.8 AFAICT). What do you want to delete from log manager in 0.8 ? Thanks, Neha On Wed, Jul 18, 2012 at 10:17 AM, Jay Kreps <jay.kr...@gmail.com> wrote: > Hey guys, > > We seem to have dropped the functionality to produce to a random partition > by setting partition to -1 in 0.8. Presumably this is because we can no > longer just choose a partition randomly, but need to pick a partition for > which the given broker is a leader. > > Questions/Comments > 1. Not sure if this was intentional or if the code just got dropped... > 2. Arguably it would be nice to continue to support this functionality to > allow a simple partition unaware producer, but I actually don't think it > will work because there is no guarantee that a given broker is a leader for > ANY partitions. So I think this functionality has to move into the > producers (it isn't complex, but that means all producers must be partition > aware). > 3. Regardless this functionality should NOT have been in log manager, which > is responsible for managing logs and shouldn't have business logic (like > inferring that an invalid partition id means choosing a random partition). > 4. I am deleting the random assignment stuff from log manager as part of > KAFKA-371 since it isn't used and I don't think it can be used in 0.8 > > Cheers, > > -Jay >
