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1. Preface The root file system is the first file system mounted after the Linux kernel is started. As described in the previous article, how to use busybox to make the root file system. This article introduces how to make the kernel find the file system after the root file system is successfully made, complete the mount, and enter the system ...

1. Operating system Deploy on Linux I/O modelData network transmission efficiency 1.1 I/O model level The I/O model is the method by which the operating system executes IO instructions. There are five types Blocking IONon blocking IOIO multiplexingSignal driven IOAsynchronous IO We can simply think that the latter model is more efficient ...

The following shell commands are gitbash installed on windows can execute successfully. The single and double quotation marks under linux may be different. Common basic commands Commands: let let command is a tool for calculation in BASH, which is used to execute one or more expressions. It is not necessary to add $to represent vari ...

edge Recently, the server's hard disk has reached 91. In order to prevent the disk from hanging up due to insufficient storage, we plan to mount some things that are not commonly used and occupy more memory elsewhere. In order to keep consistent with the original path, you may need to add a soft connection or hard connection. In order to preve ...

Recently, many small partners told me that they have learned a lot of JVM tuning knowledge, but they don't know when to tune the JVM in practical work. Today, I will introduce several JVM tuning scenarios. When reading this article, it is assumed that you have understood the data area and common garbage collection algorithms at runtime, as ...

explain Linux MYCAT installation configuration to realize MySQL master-slave replication + read-write separation.In this case, you have installed MySQL master-slave replication by default. Please refer to my related articles for details.Mycat has a single server and MySQL has a master server and a slave server. There are three servers in total ...

Linux driver development has a specific mode. In my opinion, linux driver only does one thing, Unified conversion of devices into unified class 3 virtual devices namely: 1. Character device 2. Block equipment 3. Network equipment linux driver development needs to be implemented in Ubuntu system (it is usually developed under Ubuntu and t ...

1. Host monitoring (1). Deploy node_exporter root@docker-3 src]# tar xf node_exporter-0.18.1.linux-amd64.tar.gz [root@docker-3 src]# mv node_exporter-0.18.1.linux-amd64 /usr/local/node_exporter-0.18.1 [root@docker-3 src]# ln -s /usr/local/node_exporter-0.18.1/ /usr/local/node_exporter //Modify node_exporter profile [root@jumpserver ~]# cat / ...

WeChat official account: operation and development story, author: Mr. Dong Zi 1. Fault phenomenon We have an agent agent service. After publishing to the k8s cluster, the pod status is Running, but the server has been unable to receive the heartbeat signal. Therefore, we go to the cluster to check the log and find a large number of TCP time ...

Introduction: This article introduces the three most commonly used basic operations of Docker image: login, pull and push, as well as how to log in to a sub account. By understanding the basic operation of mirroring, you can use the container mirroring service ACR more skillfully. For image download, domain name resolution and time synchron ...