That is correct if your producer ack > 1. Guozhang
On Tue, Feb 4, 2014 at 11:57 AM, Michael Popov <[email protected]> wrote: > Hi, > > I am trying to understand what influences message latency in Kafka. > > According to the Kafka Replication Design document ( > https://linkedin.jira.com/secure/attachment/10050/kafka_replication_highlevel_design.pdf > ): > > 1. Writes: Once the leader receives the acknowledgment from all > replicas in ISR, the message is committed. The leader advances the HW and > sends an acknowledgment to the client (page 4) > > 2. Reads: Only messages up to the HW are exposed to the reader (page > 5) > > It means message latency depends on how fast followers pulled data from > the leader and reported successful data writes. > Is this correct? > > Thank you, > Michael Popov > > -- -- Guozhang
