Comments (3)
Sounds very interesting. Increased test coverage is priority 1 for this repo, and in particular the form of resilience tests that you describe.
Tests based on the concept in #51 are essentially a way to document how to "smoke test" a resource. It works well for exploring things like the REST addon. The scope should be sanity checks and documentation. The benefit, but also the limitation, is that they don't require a dedicated image and don't depend on anyone's local environment.
That limitation is quite clear when testing for #78 using #79. Thus I'm working on a Java API based test for the same thing, currently in https://github.com/Yolean/kafka-test-failover.
All sorts of tests are welcome. How easy they are to adopt for others probably depend on:
- Do they have any local dependencies? Or is it just
kubectl apply -f
? - What assumptions do they make about the kafka setup? Are they specific to some hosting provider?
- Do they require new docker images?
For new images, are those builds automated at Docker Hub, like https://hub.docker.com/r/solsson/kafka/? Automated builds are easy to fork, and to build in minikube using eval $(minikube docker-env)
.
How would you want to package your tests? Separate repositories, bridged to the kafka setup using kubectl, would be an interesting approach for complex setups.
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I've tried to see if Kafka's own tests could be used here. They are nicely dockerized, but they require control over brokers. I see no obvious way to identify tests that are applicable with arbitrary bootstrap.servers
. There's also https://cwiki.apache.org/confluence/display/KAFKA/System+Test+Improvements.
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Found https://github.com/linkedin/kafka-monitor now. I'll give it a try.
The status of https://github.com/Yolean/kafka-test-failover is that I can't get enough value out of it to motivate further development at this stage. I would like to test how it affects clients when broker pods are moved between nodes, for example at cluster upgrades, because I think this is quite unusual given the manual and broker-per-server approach of traditional Kafka ops (my interpretation of http://shop.oreilly.com/product/0636920044123.do).
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Related Issues (20)
- Zookeeper properties file needs an empty line at the end of the file HOT 3
- Run JMX exporter as a Java Agent (how to?) HOT 1
- Pod, Service and Statefull pending
- Error connecting to node kafka-0.broker.kafka.svc.cluster.local:9092 HOT 1
- Error processing /etc/kafka/zookeeper.properties.scale-5.pzoo-0 HOT 5
- Can you tell me about 10 brokers in Kafka- config.yml File parameters log.retention.hours= -1 and log.retention.hours=168 What's the difference?
- Release v6.0.4 Seems to be a Breaking Release? HOT 6
- ZooKeeper produce a zombie processes HOT 4
- Error processing /etc/kafka/zookeeper.properties.scale-5.pzoo-1 HOT 5
- Can't produce/consume with outside brokers HOT 1
- [Question] Getting started but no resources created?
- upstream bug: zookeeper 3.5.7 leader election seriously broken HOT 1
- How do I specify my own volumeclass / volume mount locations?
- Zookeeper Init:Error "/etc/kafka-configmap/init.sh: No such file or directory"
- Issue on external service (Kafka) HOT 1
- Incompatible with newer kustomize/kubectl
- Quickstart is broken (v6.0.3) HOT 1
- Auto scale Kafka partitions HOT 1
- Unable to successfully start pods - CrashLoopBackOff error HOT 1
- ARM64 Images for Kafka JMX Prometheus Exporter
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