Scaling a dormant Java application? Quarkus and Knative to the rescue!

on YouTube ↗46m

" summary

Demonstrates using Quarkus + Knative on Kubernetes to scale a Java service from zero to 100 pods in seconds by using Quarkus fast startup and native GraalVM builds the demo deploys a Quarkus app on OpenShift Serverless showing pods spawn to handle 150 concurrent requests and then scale back to 0 pods the native build claims ~12 MB resident memory and subsecond cold start times Kafka and CloudEvents integration are used for event sources and the live demo works as shown

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" chapters (20)

1. 0:00Introduction
2. 2:15Horizontal scaling
3. 5:18When you cant scale fast
4. 5:37The evolution of scaling
5. 6:27Containers
6. 7:47Kubernetes
7. 9:40Serverless
8. 10:09What is serverless
9. 11:07Not serverless vs serverless
10. 12:10Serverless evolution
11. 15:33Why Knative
12. 18:25Whats in Knative
13. 20:41Duke the Java Mascot
14. 21:17Traditional Java
15. 22:29Existing Java skills
16. 22:49Quarkus
17. 23:41What is Quarkus
18. 26:28Usage
19. 29:26Backpressure
20. 32:51Quarkus Deployment

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