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After deploying a Kafka cluster with Strimzi, the Kafka pods remain in the Pending state. What is the most probable reason?

medium📝 Troubleshoot Q6 of 15
Kafka - Kubernetes and Cloud Deployment
After deploying a Kafka cluster with Strimzi, the Kafka pods remain in the Pending state. What is the most probable reason?
AKafka brokers are not configured with correct listener ports
BInsufficient Kubernetes node resources to schedule pods
CZookeeper pods are running but Kafka pods are not created
DStrimzi Operator is not installed in the cluster
Step-by-Step Solution
Solution:
  1. Step 1: Understand Pending pod state

    Pods in Pending state usually indicate scheduling issues.
  2. Step 2: Check resource availability

    Pending pods often mean insufficient CPU, memory, or storage on nodes.
  3. Step 3: Evaluate other options

    Listener misconfiguration or missing operator would cause different errors, not Pending state.
  4. Final Answer:

    Insufficient Kubernetes node resources to schedule pods -> Option B
  5. Quick Check:

    Pending = scheduling/resource issue, not config or operator missing [OK]
Quick Trick: Pending pods usually mean resource shortage [OK]
Common Mistakes:
  • Assuming listener config causes Pending state
  • Thinking missing operator causes Pending pods
  • Confusing pod creation failure with scheduling issues

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