Hi Ted, Broker: v0.11.0.0
Consumer: kafka-clients v0.11.0.0 auto.offset.reset = earliest On Fri, Oct 6, 2017 at 6:24 PM, Ted Yu <yuzhih...@gmail.com> wrote: > What's the value for auto.offset.reset ? > > Which release are you using ? > > Cheers > > On Fri, Oct 6, 2017 at 7:52 AM, Dmitriy Vsekhvalnov < > dvsekhval...@gmail.com> > wrote: > > > Hi all, > > > > we several time faced situation where consumer-group started to > re-consume > > old events from beginning. Here is scenario: > > > > 1. x3 broker kafka cluster on top of x3 node zookeeper > > 2. RF=3 for all topics > > 3. log.retention.hours=168 and offsets.retention.minutes=20160 > > 4. running sustainable load (pushing events) > > 5. doing disaster testing by randomly shutting down 1 of 3 broker nodes > > (then provision new broker back) > > > > Several times after bouncing broker we faced situation where consumer > group > > started to re-consume old events. > > > > consumer group: > > > > 1. enable.auto.commit = false > > 2. tried graceful group shutdown, kill -9 and terminating AWS nodes > > 3. never experienced re-consumption for given cases. > > > > What can cause that old events re-consumption? Is it related to bouncing > > one of brokers? What to search in a logs? Any broker settings to try? > > > > Thanks in advance. > > >
