Kafka SerializationException: Fixing Poison Pill Records
Kafka SerializationException: "Error deserializing key/value" crashes your consumer in a loop. Fix it with ErrorHandlingDeserializer and a dead letter topic.
Kafka SerializationException: "Error deserializing key/value" crashes your consumer in a loop. Fix it with ErrorHandlingDeserializer and a dead letter topic.
FencedInstanceIdException means two live consumers share one group.instance.id. Here's why the broker fences the old one, and how to fix it for good.
ProducerFencedException: there is a newer producer with the same transactionalId. What fences a Kafka transactional producer and the exact fix, explained.
Fix org.apache.kafka.common.errors.NetworkException: the server disconnected before a response was received. Root causes, idempotent retries, LB timeouts.
Hitting RecordTooLargeException in Kafka? Learn why the 1MB default bites on both producer and broker, and the exact configs to fix it properly.