Theo Hultberg created KAFKA-2225:
------------------------------------
Summary: Allow fetching from ISR
Key: KAFKA-2225
URL: https://issues.apache.org/jira/browse/KAFKA-2225
Project: Kafka
Issue Type: Improvement
Reporter: Theo Hultberg
Currently clients are not allowed to fetch from replicas, even if they are in
sync with the master. If I'm not missing anything significant it shouldn't be
any difference fetching from the leader or an ISR, besides maybe some extra
latency.
For our use case it would be very beneficial to be able to fetch from replicas
instead of just the leader. We run Kafka clusters that replicate across EC2
availability zones, and each byte sent between zones costs money. This bandwith
usage costs us about the same as it costs to run the instances. If we could
fetch from a replica in the same zone as the client we could avoid some of this
cost.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
