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
