Check if any of your consumers have auto commit turned off and instead commit after processing each message.
Also, even if all consumers are using auto commit, maybe some of them have the interval set to something crazy low like 1 ms. On Sat, Jun 20, 2020 at 8:31 PM Ashutosh singh <getas...@gmail.com> wrote: > Hi Guys, > > Hope you all are doing well. > > All of sudden I see very high throughput for _consumer_offsets topic. it > is around 30-40K per second. What could be the reason for such a high > rate ? Do I need to be concerned around this ? > > [image: image.png] > > > This happens for an hour and after that it goes down. Now it is happening > once or twice daily. > > I have 8 node cluster , 1000+ topics and 644 consumer groups. > All nodes have almost equal number of lead partition across nodes and > almost equal partition on all nodes. > > Kafka version : 2.1.1 > > If you see above graph, there are no other topics where messages are more > than 300 Message/sec. only _consumer_offsets is having so high through > put. > > I know this is internal topic ans store metadata of topics and consumer > information. But I don't see anything abnormal in my cluster then why > _consumer_offset topic is going crazy. What is going on here ? > > Any help will be appreciated. > > -- > Thanx & Regard > Ashutosh Singh > 08151945559 > >