>Issue #1 is that in Kafka’s server.properties file has the line log.flush.interval.messages=1 which forces Kafka to fsync on each message batch. So all tests, even those where this is not configured in the workload file will get this fsync behavior. I have previously blogged about how Kafka uses recovery instead of fsync for safety.
Respect to the Kafka team as Kafka is an incredible piece of software, but the Mongo guys got torched for eternity for pulling the same shenanigans.
Respect to the Kafka team as Kafka is an incredible piece of software, but the Mongo guys got torched for eternity for pulling the same shenanigans.