Kafka - Schema Registry
A Kafka producer with schema validation enabled is failing to send messages. The schema registry URL is correct. What else should you check?
A Kafka producer with schema validation enabled is failing to send messages. The schema registry URL is correct. What else should you check?
medium📝 Debug Q7 of Q15
Step-by-Step Solution
Solution:
Step 1: Confirm schema compatibility
Even with correct URL, messages must match the latest schema version to serialize.Step 2: Evaluate other options
Batch size and key.serializer unrelated to schema validation; disabling validation avoids the problem but is not a fix.Final Answer:
Verify that the message schema matches the latest registered schema version -> Option AQuick Check:
Schema match with latest version is required [OK]
Quick Trick: Match message schema to latest registered schema version [OK]
Common Mistakes:
MISTAKES- Changing unrelated serializers
- Disabling validation instead of fixing schema
- Adjusting batch size to fix schema errors
Master "Schema Registry" in Kafka
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