Hi, I’m curious what’s the recommended number of partitions running on each individual broker? We have a 3 nodes clusters running 0.9.0.1, each one has 24 cores, 1.1T ssd, 48G ram, 10G NIC. There’s about 300 partitions running on each broker and the resource usage is pretty low (5% cpu, 50% ram, 2% disk). But we see a lot random ISR expand/shrink happens to the cluster. Our networking is pretty stable, so I’m wondering if that’s because more partitions than kafka could handle? Is there any kafka parameters that we could tuning?
Thanks, Jun
