Programmer Think

1, Explain In the previous chapter, we had a general understanding of the startup of the nginx process. We didn't go deep into what the process did. In this chapter, we'll look at what the master process is doing. 2, Function analysis ./src/os/unix/ngx_process_cycle.c>ngx_master_process_cycle(ngx_cycle_t *)   ngx_new_bina ...

When the project uses docker on a large scale, the problem of container communication arises. To solve the problem of container communication, you must first understand a lot of knowledge about the network. Docker, as the most popular lightweight container technology, has many commendable functions, such as docker image management. However, doc ...

Disk management - supplemental expansion Expand swap space Add disk expansion Process: new partition – > refresh partition table – > format – > activate see information [root@server1 ~]# free -h total used free shared buff/cache available Mem: 1.8G 147M 1.2G 9.6M ...

In short, it's not very appropriate to talk about several git partitions Workspace: all the files you currently see are actually workspaces Staging area: after running git add, the changes to the working area will arrive at the staging area Version area: after running git commit, changes to the staging area will arrive at the version area Re ...

k8s uses Nodeport to expose services There are many ways to expose K8s services. Here we mainly study how to expose services through Nodeport First of all, we must understand several concepts before exposing ports: *< 1 >. Server: it is a cluster instance entry composed of accessing backend pod replicas. It consists of: ` [cluster_ip] ` ...

How to install MySQL on Ubuntu 20.04 MySQL is the most popular open source relational database management system. It's fast, easy to use, easy to expand, and part of the popular LAMP and LEMP. This guide explains how to install and protect MySQL on Ubuntu 20.04. prerequisite Make sure you are logged in as sudo user Install MySQL on Ubuntu At th ...

Introduction:Docker is an open source application container engine based on the Go language and compliant with the Apache 2.0 protocol.Docker s can allow developers to package their applications and dependencies into a lightweight, portable container that can then be published to any popular Linux machine, or they can be virtualized.Containers ...

brief introduction MySQL database backup can be divided into logical backup and physical backup. The logical backup tools are mysqldump and the physical backup tools are xtrabackup. The two backup methods have their own advantages and disadvantages Backup tools mysqldump xtrabackup advantage Support hot backup and incremental backup, requ ...

VNC introduction VNC is a remote control tool software. VNC is a free open source software based on UNIX and Linux operating system. It has powerful remote control ability, high efficiency and practicality. iis7 server management tool is a free VNC connection software. It supports batch opening and installation of VNC servers. It can connect m ...

background How springboot integrates Prometheus is not described in detail here. For an understanding of the integration process, refer to the blog: Spring Boot uses Micrometer integrated Prometheus to monitor Java application performance， Let me tell you a little bit about how long p99, p90 and other metrics we need to get for some monitoring ...