How to optimize consumer cpu usage

[Maheswari Marimuthu (C)]

I have a kafka consumer which has been running for few days perfectly. Yesterday the broker went down. Since then the consumer is showing 100% cpu usage. The usage went down considerably (under 10%) when the broker was up. I am curious why the usage is 100% (or near 100%) when broker is down? I don't see anything in the logs.

fetch.min.bytes - where to use laravel kafka consumer