The downscale operation fails with decommission failed
Condition
The downscale operation fails with the Decommission failed
error.
Cause
This issue can be caused by either of the following:
- The broker is not available.
- Cruise Control is reporting unhealthy partitions
- A manually initiated rebalance is running.
- An insufficient amount of brokers would remain after the downscale operation to host
all replicas.
This only affects deployments where there is a topic with at least four-way replication set up.