Kafka - Schema Registry
You have a Kafka consumer configured with Schema Registry but it throws an error: "Schema not found for subject 'User-value'". What is the most likely cause?
You have a Kafka consumer configured with Schema Registry but it throws an error: "Schema not found for subject 'User-value'". What is the most likely cause?
medium📝 Debug Q6 of Q15
Step-by-Step Solution
Solution:
Step 1: Analyze the error message
The error indicates the Schema Registry cannot find a schema for the subject 'User-value'.Step 2: Identify the cause
This usually means the schema was never registered under that subject, so the consumer cannot deserialize messages.Final Answer:
The schema was never registered under 'User-value' subject -> Option DQuick Check:
Schema not found error = Schema missing in registry [OK]
Quick Trick: Schema must be registered before consumer can use it [OK]
Common Mistakes:
MISTAKES- Blaming consumer config for schema registry errors
- Assuming topic or group ID causes schema not found
- Ignoring schema registration step
Master "Schema Registry" in Kafka
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