Tag: backend

All the articles with the tag "backend".

• Watching Kafka work: batches, log segments and an idle fourth consumer

  18 Oct, 2026

  Kafka 4.3.1 in one container, 3,000 keyed messages and three partitions. The segment files on disk, 900 messages stored in two batches, keys that always land in the same partition, a consumer that gets nothing, and every command to repeat it.