This post mainly explains why the service discovery feature is needed and compares several service discovery tools. It also puts service discovery with Etcd, Confd, and Nginx into practice on CentOS. 1. Service Registration and Discovery 1.1 Why Service Registration and Discovery Are Needed With the rise of microservices, a

Internet services often depend on tens of thousands of hosts, and those hosts are deployed all over the world, on top of a tangled mess of user environments. To keep a service stable and reliable, you need to monitor it. The goals of monitoring can be considered from several angles: from the system dimension, understand CPU, memory, and disk usage; from the network monitoring dimension, understand upstream and downstream rates; from the service monitoring dimension, understand the health and availability of the application.

This article gives a brief introduction to the ELK stack and provides a Docker compose orchestration configuration. After reading it, you can get ELK running locally with Docker. A later article will cover deploying ELK on servers and adding the related configuration. 1. Introduction to the ELK Stack ELK is not actually a single piece of software but a whole solution — an acronym formed from the initials of three software products: Elasticsearch, Logstash, and Kibana.

1. How to Do Code Review Better Requirement Items Requirements for the committer Small granularity Atomicity With comments Tool checks Requirements for the reviewer First conventions Second logic & performance Third design Requirements for the team Reviewing the old to learn the new 2. Define a Code Review Checklist Requirement Items Naming Variable names

This article mainly lays out a few things to watch out for during Django development. A consistent coding style and sound design principles help a project’s development and maintenance, and are worth developers studying and discussing continuously. 1. Encoding Declaration When the Python interpreter executes code, it needs to be