[Solved] You run this Helm upgrade command:helm upgrade kafka bitnami/kafka --set replicaCount=3But the Kafka deployment still has 2 brokers. What is the likely issue? | Kafka

Kafka - Kubernetes and Cloud Deployment

You run this Helm upgrade command:

helm upgrade kafka bitnami/kafka --set replicaCount=3

But the Kafka deployment still has 2 brokers. What is the likely issue?

AThe Helm chart version is incompatible

BThe Helm release name is incorrect

CKafka does not support scaling brokers via Helm

DThe replicaCount value was not applied due to missing --reuse-values flag

Step-by-Step Solution

Solution:

Step 1: Understand Helm upgrade behavior
Helm upgrade requires --reuse-values to reuse previous values while applying new --set overrides.
Step 2: Identify why replicaCount didn't change
Without --reuse-values, the new value may not apply correctly in combination with prior settings.
Final Answer:
The replicaCount value was not applied due to missing --reuse-values flag -> Option D
Quick Check:
Missing --reuse-values can block value changes = A [OK]

Quick Trick: Use --reuse-values to keep and update Helm settings on upgrade [OK]

Common Mistakes:

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