In this tutorial, we will use Terraform to spin up a minimal Nomad/Consul cluster on GCP and then deploy a Spring Boot native app to test-drive Nomad's Horizontal Application Autoscaling capabilities.
In this tutorial, we discussed guidelines and considerations for Spring Cloud microservices component tests and provided a recipe for common use cases.
In this article, we show CRUD operations on hierarchical data stored in MongoDB by taking advantage of the "$graphLookup" operation and build a Spring Boot app.
A road-map to developing Reactive Microservices in Spring. We combine material from various official and 3rd party sources and our personal experience.
We will show how to secure WebSockets communication over SSL/TLS. We will also bring Server Sent Events (SSEs) into play, and the challenges horizontal scaling presents in such architectures.
What about CI/CD? Which things change when we need to build and deploy native images via automated pipelines?
For example the CI server machines will need more processing resources to accommodate with larger build times. Also do they need to have GraalVM installed? Other considerations?
My concern is the following: Since Hibernate 5.2, we are able to use the stream()method instead of scroll(). However, when using scroll() with ScrollableResults as you exlplain in detail, we are able to a hook into the retrieval process and to free memory. Now, if we use the stream() method, what will happen behind the scenes and how much control do we have? Is it possible to evict object from the persistent context? Is the session cleared periodically? What about StatelessSession?
CORE
Comments
Mar 29, 2021 · Petr Bouda
Hello - nice post!
What about CI/CD? Which things change when we need to build and deploy native images via automated pipelines?
For example the CI server machines will need more processing resources to accommodate with larger build times. Also do they need to have GraalVM installed? Other considerations?
P.S: the link https://www.graalvm.org/docs/reference-manual/native_heapdump/ needs to be updated (404)
Nov 02, 2020 · Kyriakos Mandalas
You are right, same we have it here in the github project: https://github.com/kmandalas/webclient-showcase/blob/master/gateway-service/src/main/resources/application.yml We will correct it in the article as well. Thanks.
Aug 08, 2020 · Kyriakos Mandalas
Hello. You may find the scripts here: https://github.com/petros94/smart-home-websockets/tree/master/locust
May 12, 2017 · Alec Noller
My concern is the following: Since Hibernate 5.2, we are able to use the stream()method instead of scroll(). However, when using scroll() with ScrollableResults as you exlplain in detail, we are able to a hook into the retrieval process and to free memory. Now, if we use the stream() method, what will happen behind the scenes and how much control do we have? Is it possible to evict object from the persistent context? Is the session cleared periodically? What about StatelessSession?