Kafka - Kubernetes and Cloud Deployment
You applied a Kafka cluster YAML with 3 replicas, but only 1 Kafka pod is running. Which of the following is the most likely cause?
You applied a Kafka cluster YAML with 3 replicas, but only 1 Kafka pod is running. Which of the following is the most likely cause?
medium📝 Troubleshoot Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Check Kafka replicas in YAML
If YAML specifies 3 replicas, pod count should be 3, soreplicas: 1is unlikely.Step 2: Consider Strimzi operator role
Strimzi operator manages Kafka pods. If it is missing or not running, pods won't be created properly.Final Answer:
Strimzi operator is not installed or running -> Option DQuick Check:
Operator missing = pods not managed [OK]
Quick Trick: Check Strimzi operator status if pods don't match replicas [OK]
Common Mistakes:
- Blaming Zookeeper replicas for Kafka pod count
- Thinking ephemeral storage stops pod creation
- Assuming YAML replicas value is always correct
Master "Kubernetes and Cloud Deployment" in Kafka
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