Blog - LINE ENGINEERING

Seunghwan Joo

Seunghwan is in charge of LINE OpenChat back-end development

Customizing Armeria metrics
Seunghwan Joo2021-08-04
Seunghwan is in charge of LINE OpenChat back-end development
In my last post, Monitoring Prometheus metrics from Armeria, we took a look at how you can monitor Armeria metrics using Grafana. In this post, I would like to show you how you can customize Armeria metrics to suit your needs. The sample code in this post uses the same sample code from Monitoring Prometheus metrics from Armeria. Customizing metrics prefixes using MeterIdPrefixFunction In the last post I mentioned that you can customize the default prefix appended to metrics by us
- Server-side
- Armeria
- Java
Monitoring Prometheus metrics from Armeria
Seunghwan Joo2021-07-09
Seunghwan is in charge of LINE OpenChat back-end development
In this post, we'll be taking a look at how you can monitor Prometheus metrics collected with Armeria. For those of you who are trying Armeria for the first time, I will be adding simple practice samples so that you can follow along. Practice exercise The practice session was designed on macOS Big Sur. Let's now take a look at how you should install and configure Gradle, Prometheus, and Grafana to run the samples, and see what the results are. Configuring Gradle
- Server-side
- Armeria
- Java
Using Circuit Breakers with Armeria
Seunghwan Joo2020-07-08
Seunghwan is in charge of LINE OpenChat back-end development
What is a circuit breaker? Suppose an unexpected failure occurs (For example, a network issue or a server crash) and a remote server is unable to respond to the request. If so, the client who made the request to the remote server will either wait for a response until a timeout occurs, consume resources, or eventually continue to send unnecessary requests. And on a Microservice Architecture (MSA), this client can also be a server for other services. In the end, clients of this server will have
- Server-side
- Armeria
- Java

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