jetstream
jepsen
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| jetstream | jepsen | |
|---|---|---|
| 2 | 3 | |
| 428 | 6,603 | |
| - | 1.2% | |
| 8.4 | 7.6 | |
| almost 3 years ago | about 1 month ago | |
| Dockerfile | Clojure | |
| Apache License 2.0 | - |
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jetstream
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Centrifugo v4 released – with own WebSocket emulation layer, optimized client protocol, unified SDK behavior, experimental HTTP/3 and WebTransport support
Centrifugo can use Nats as PUB/SUB broker. I also tried to use Jetstream to implement Centrifugo history/recovery semantics – unfortunately Jetstream does not fit us very well as streams must be created over a separate call to admin API, and it's not possible to iterate/paginate over Jetstream streams to be suitable to current Centrifugo message history and recovery semantics (I asked about support for this – unfortunately the issue was closed and required API not implemented - https://github.com/nats-io/jetstream/issues/266, suggested solution is far from optimal for our use case).
- ZooKeeper-free Kafka is out. First Demo
jepsen
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MongoDB is actively investigating a security incident
aphyr seems to still work on it, so probably just not that many companies who want to pay to get told the truth anymore: https://github.com/jepsen-io/jepsen
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What Is Property Based Testing?
One very nice example of this is Jepsen:
https://github.com/jepsen-io/jepsen
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ZooKeeper-free Kafka is out. First Demo
https://github.com/jepsen-io/jepsen/issues/399
> Yeah! I mean, I find a lot of linearizability errors in various databases, but this was also my very first time doing this kind of test, and it varies from system to system. Could have easily slipped through the cracks.
In summary, aphyr thought Zookeeper is linearizable even though it doesn't provide linearizable ops.
Looks like Zookeeper needs to be tested again.
What are some alternatives?
Apache Kafka - Mirror of Apache Kafka
java-pubsublite-kafka
liftbridge - Lightweight, fault-tolerant message streams.
redpanda - Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!
Apache Pulsar - Apache Pulsar - distributed pub-sub messaging system
kafkacat - Generic command line non-JVM Apache Kafka producer and consumer [Moved to: https://github.com/edenhill/kcat]