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Confluent Developer Blog
Apache Kafka
Kafka Queues for Quarkus
Learn how to use Queues for Apache Kafka (KIP-932) with the Quarkus framework, including share group configuration, explicit message acknowledgment, and cooperative consumption from a single partition.
Apache Flink
How we cut Flink OOMKills by 91.2%: Zombie block cache, phantom CPUs (and some bonus AI Learnings)
How we traced a native-memory leak in Flink's RocksDB block cache and a jemalloc fragmentation bug, cutting OOMKilled Task Managers by 91.2% — plus what running the investigation with Claude taught us.