What is HDFS?
If you are also a big data worker, you must have heard of the distributed file system:
Overview of Fundation Models
With the development of the times, the application of foundation models in various fields is expanding. This article tries its best to sort out various materials and will give a brief overview of foundation models from the aspects of concept definition, type classification, training and application.
About Redis Persistence And Clustering
Redis is a very commonly used key-value database. The use of memory and HashMap for storage brings efficient queries. This article will introduce the persistence principle of Redis, the deployment method of clusters, and the expiration and elimination mechanism of key-value pairs.
What problems will we encounter in the process of ensuring the consistency of distributed transactions?
In today's microservice architecture, how to ensure the consistency of distributed transactions is a problem that every backend development engineer may encounter.
Why is the number of distributed nodes usually an odd number?
As a backend engineer, I often deal with various distributed systems in my daily work, such as ETCD, Redis, k8s, etc. When deploying these distributed clusters, we usually set the number of nodes to an odd number, which seems to be a conventional rule. But why? In addition to the fact that even-numbered nodes are prone to voting tie, are there other reasons?
ORB-SLAM2 Installation Guide
This blog will describe in detail how I installed Ubuntu16.04 dual system in bare metal state and installed the corresponding version of ROSkinetic system. In addition, after installing these two systems, how to successfully install and debug INDEMIND binocular camera and implement ORB-SLAM2 algorithm.
Understanding Garbage Collection in Go
If you want to know how Go performs GC (Garbage Collection). I have read a lot about the "three-color marking method" on the Internet, but I think it is very complicated and not simple enough. Then this article is a very good reference for your entry into Go's GC mechanism.
Cgo Call Practice
Cgo calls are mainly divided into two types:
- Put C language code into the Go language file in the form of comments.
- Provide C language code to the Go source code in the form of a shared library.
This article will mention both methods, but mainly talk about the second method. When talking about the second method, we will take Go language calling C++ library-- Armadillo as an example.
The article will first describe the principles of Cgo, and then describe the two methods of calling. If you only want to see the sample code, you can jump to the back.
How does Postgres manage memory? How to tune memory?
This document mainly records the learning content in the process of troubleshooting the problem of query interface timeout caused by excessive memory usage of PostgreSQL database during large-scale writes. It mainly focuses on memory management and learns the relevant core architecture of PostgreSQL.
Keep It Simple
A website for study notes.
ShenZhen, China
Announcement: Limited English Blog Content
Dear readers,
Thank you for visiting my blog! I want to acknowledge that there aren't many posts in English here at the moment. As a native Chinese speaker, I've always written primarily in Chinese. However, I'm now working to translate my existing content into English to reach more readers.
This process involves using tools like Google Translate, so you may encounter occasional less-than-perfect expressions. I truly appreciate your understanding and patience as I navigate this transition.
The translation effort will take time, but I'm committed to bringing more content to you in English. Thank you for your support and for sticking around! 😄