Kafka Consumer Group Rebalancing

12 Steps

JoinGroup, Heartbeat Liveness, Coordinator Generations, Eager vs. Cooperative Sticky Revocation, Partition Ownership & Lag

Step 1 of 12

1. Group Membership & Liveness

2. Coordinator & Rebalance Protocol

3. Partition Ownership & Offsets

4. Consumer Fetchers & Convergence

Step 1 of 12 Group: payments-cg (P0–P5)

1. Consumers join the group

Why This Mechanism Matters Each partition in a topic can be owned by at most one consumer member within the same consumer group at any generation.

Component Inspector

Membership Pool

IN: Member Registration
OUT: JoinGroup Request

READY