Fwd: Questions about failure recovery, load balancing and producer ack/async mode

[Shafaq <s....@gmail.com>]

Hi,

   Following need more elaboration after reading kafka docs:

1- In a scenario during leader fails over, what happens to messages that
are not committed to other followers and to the messages that producer keep
in sending (in async mode) till new leader is elected. Can the producer
buffer these messages till the failover gets completed (Do we see
exceptions. Are these all lost?

2. Broker load distribution or to be exact partition load distribution is
done via hashed key mod no of partition, is that correct?  How is it done
at the consumer side where one thread per partition (for high-level
consumer) How is the faliover handlled

3. How do we configure producer for wait for leader ack and wait for
commited act which Jun  Rao talks about in his 2013 apachecon presentation

-- 
Kind Regards,
Shafaq




-- 
Kind Regards,
Shafaq