Hi, I just upgraded from Kafka 2.4.1 to 2.6.1 and I see huge CPU usage on the broker after the upgrade. Upgrade in this case means that I only bumped the broker version on 1 of the brokers out of the 6 and didn't change the protocol or message format versions. Before the upgrade, it used about 35% CPUs. After the upgrade it uses 200% but if I add two more CPUs to the host, it is happy to use about 350%.
I tried 2.5.1 and 2.7.0 versions too. All of those versions show the same. Any idea what may be wrong? Thanks, Peter
