Could you show us the output of Kafka-topics.sh describing your desired topic status?
On Sun, 20 Jan 2019 at 12:56, M. Manna <manme...@gmail.com> wrote: > I think you’re slightly confused with what’s going on here. > > Your quorum is broken- when it becomes 2 nodes, how does it make sense to > elect 1 broker and 1 follower ? And why is it that node 1 is the broker, > not follower? > > Your issue is the quorum setup. Your setup can only sustain 1 failure, > which you have with node0 going down. Heartbeat isn’t the issue here. > > Thanks, > > On Sun, 20 Jan 2019 at 12:53, Amin Sadeghi <sadeghi.ya...@gmail.com> > wrote: > OK , but after re-election happened , consumers do not consume messages >> >> On Sun, Jan 20, 2019 at 4:18 PM suresh sargar <suresh.sar...@gmail.com> >> wrote: >> >> > Zookeeper checks heartbeat of each node.as soon as ZK not able to get >> > heartbeat from leader, re-election happens. Heartbeat check interval is >> > configurable. If u run kafka_topic.sh with describe option u will see >> newly >> > elected leader and isr will also updated one. >> > >> > On Sun 20 Jan, 2019, 5:53 PM Amin Sadeghi <sadeghi.ya...@gmail.com >> wrote: >> > >> > > Thanks for answers >> > > But if a leader goes offline , when a follower become leader, in other >> > > words when a leader of partitions will changed >> > > >> > > On Sun, Jan 20, 2019 at 3:03 PM M. Manna <manme...@gmail.com> wrote: >> > > >> > > > I’m simply giving my comments but others please correct me if this >> is >> > not >> > > > correct. >> > > > >> > > > For Scenario 1 - your leader node0 is offline - and your quorum is >> now >> > > not >> > > > stable. So if a leader goes offline it's not certain who will take >> > over. >> > > So >> > > > that's why 3 is recommended as a minimum, however not the best >> number >> > to >> > > > deploy in production. >> > > > >> > > > For Scenario 2 - Your leader node0 is online. So even if node 1 or >> 2 is >> > > > stopped, the consumers can get the message from leaders, not >> followers. >> > > > >> > > > So this is not unexpected. >> > > > >> > > > Thanks, >> > > > >> > > > On Sun, 20 Jan 2019 at 11:17, Amin Sadeghi <sadeghi.ya...@gmail.com >> > >> > > > wrote: >> > > > >> > > > > Hi >> > > > > Please help me for kafka failover >> > > > > >> > > > > >> > > > >> > > >> > > >> https://stackoverflow.com/questions/54274799/Kafka-broker-failover-not-worked >> <https://stackoverflow.com/questions/54274799/kafka-broker-failover-not-worked> >> > > > > >> > > > >> > > >> > >> >
