Thanks Divij, I will check further. --- Thanks & Regards, Kunal Jadhav
On Fri, Apr 14, 2023 at 4:25 PM Divij Vaidya <divijvaidy...@gmail.com> wrote: > Hey Kunal > > We would need more information to debug your scenario since there are no > known bugs (AFAIK) in 3.3.2 associated with leader election. > > At a very high level, the ideal sequence of events should be as follows: > 1. When the existing leader shuts down, it will stop sending requests for > heartbeat/metadata to the controller. > 2. Controller will detect that it hasn't received a heartbeat from a broker > for > broker.heartbeat.interval.ms (defaults to 2s). > 3. Controller will elect a new leader and send LeadershipAndISR requests to > other brokers in the ISR, one of them will be elected as a leader. > > You should be able to look at the state change logs and verify the sequence > of events. In case your controller resides on the same machines as the > leader in step 1, there will be a controller failover first followed by the > sequence of events described above. > > Could you please tell us the sequence of events by looking at your state > change logs? I would also look at controller logs to ensure that it is > actually performing a leader failover. > > Also, how are you checking that a leader is not elected? Could it be that > the partition is under-replicated or below ISR and that is why you aren't > able to produce/consume from it but it still has a leader? > > -- > Divij Vaidya > > > > On Fri, Apr 14, 2023 at 12:32 PM Kunal Jadhav > <kunal.jad...@nciportal.com.invalid> wrote: > > > Hello All, > > > > We have implemented 3 brokers cluster on a single node server in the > > kubernetes environment, which is a zookeeper-less cluster having kafka > > version 3.32. And facing one issue like when the existing leader broker > > gets down then the new leader is not elected. We have faced this issue > > several times and always need to restart the cluster. So please help me > to > > solve this problem. Thanks in advance. > > > > --- > > Thanks & Regards, > > Kunal Jadhav > > >
