Tag

messaging

3 cards

Cards

A producer registering a schema version with a registry that runs a compatibility check, publishing data carrying a schema ID, consumers fetching by that ID, backward, forward and full compatibility compared, and three changes the registry refuses at deploy time

KafkaDay 92Nov 1, 2026

One Field Added. Forty Consumers Down.

system-design kafka messaging

A Kafka topic before and after compaction keeping only the latest value per key, a compacted topic read from the beginning to rebuild a local state table of customer addresses, and tombstone records removing a key entirely

KafkaDay 91Oct 31, 2026

A Log That Forgets The Middle

system-design kafka messaging

A Kafka transaction wrapping consume, process, produce and offset commit atomically inside Kafka, set against database writes, payment APIs, email and external APIs outside the boundary that can still happen twice

KafkaDay 90Oct 30, 2026

Exactly Once, Within One Room

system-design kafka messaging