Kafka Produce Path Visualizer

Follow a produce from key → partition → leader → ISR replicas, and see what happens when a replica falls behind or the leader fails.

Kafka Produce Path

Hash a record key to a partition, inspect the leader + ISR, and simulate replica lag or leader failure.

Key Partitions acks

Simplified: each partition has 1 leader + 2 followers. ISR shrinks when a follower lags; acks=all needs ISR acknowledgements.

Path

key → murmur-like hash → partition → leader writes → followers in ISR catch up → ack based on acks setting.