We write things down and we build small open source pieces. This is where both live. Have a look — and tell us what you think.
Exactly-once, read_committed and the last stable offset, begin/commit/abort, and the consume–process–produce loop. The transactions module makes EOS — Kafka's hardest topic — something you can step through. Free play also gains a new cluster type: active/active.
Monedula GitOps manages Kafka topics, access, quotas, schemas, users, and Confluent RBAC from version-controlled manifests, through either a CLI or a Kubernetes operator.
The replication module arrives: ISR mechanics, the high watermark, acks=all and min.insync.replicas, leader election and what an unclean election actually loses. Twelve scenarios on the guarantees Kafka is famous for.
Consumer groups, assignment strategies, static membership and the two timeouts that decide when a member is gone. Ten new scenarios that make the rebalance — Kafka's most misunderstood moment — something you can watch instead of guess at.
Kafka Simulator v1.1 adds ten scenarios covering producer batching, partitioning, compression, backpressure, retries, and idempotence.
A safe, auditable command-line tool for converting Apache Kafka ACLs into Confluent RBAC role bindings. Plans are checksummed and effective access is verified before anything is applied.
Declarative, version-controlled management for Kafka topics, access, quotas, schemas, SCRAM users, and Confluent RBAC. A CI-friendly CLI and a Kubernetes operator share one resource model, and Import brings existing clusters in.
A Kafka MetricsReporter plugin that ships broker and client metrics over OTLP to an OpenTelemetry collector. Async and fail-safe — collector outages never block Kafka.