classcastexception - Gopi Gorantala

Kafka Streams: A Serializer Is Not Compatible to the Actual Type

Kafka Streams throws 'A serializer is not compatible to the actual key or value type' or 'ClassCastException invoking Processor'. Here's the SerDe fix.

Kafka SerializationException: Can't Convert Value of Class Fix

Kafka SerializationException: Can't convert value of class X to StringSerializer? The ClassCastException behind it, the config fix, and the safer design.

Kafka InvalidReplicationFactorException: Larger Than Available Brokers

Fix Kafka's InvalidReplicationFactorException — "Replication factor: 3 larger than available brokers: 1" — in Docker and single-broker dev setups fast.