Hello, We've been trying to debug an issue with our kafka cluster for several days now and we're close to out of options.
We have 3 kafka brokers associated with 3 zookeeper nodes and 3 registry nodes, plus a few streams clients and a ruby producer. Two of the three brokers are pinning a core and have been for days, no amount of restarting, debugging, or clearing out of data seems to help. We've got the logs at DEBUG level which shows a constant flow much like this: https://gist.github.com/elliotcm/e66a1ca838558664bab0c91549acb251 As best as we can tell the brokers are up to date on replication and the leaders are well-balanced. The cluster is receiving no traffic; no messages are being sent in and the consumers/streams are shut down. >From our profiling of the JVM it looks like the CPU is mostly working in replication threads and SSL traffic (it's a secured cluster) but that shouldn't be treated as gospel. Any advice would be greatly appreciated. All the best, Elliot
