Introduction to Redis Database 1.1 Redis 1.1.1 introduction to Redis is an open source, network-enabled, memory-based, optional persistence key-value pair (key-value) storage database written in ANSI C. Since June 2015, Red
HTTPHTTP protocol is the abbreviation of Hyper Text Transfer Protocol (Hypertext transfer Protocol). It is a transport protocol used to transfer hypertext from a WWW:World Wide Web server to a local browser.
Brief introduction to tomcat1 and Tomcat Tomcat is a core project of the Jakarta project of the Apache Software Foundation (Apache Software Foundation), which is sponsored by Apache, Sun and others.
1. Collect memory usage Total memory on node_memory_MemTotal_bytes host node_memory_MemFree_bytes free memory node_memory_Buffers_byt on host node_memory_MemFree_bytes
First, the type of data persistence: 1.emptyDir: can only be used as temporary storage. If the container is deleted, the data still exists, and if the Pod is deleted, the data will also be deleted. 2.HostPath: not many scenarios are used, which will increase the coupling between Pod and nodes. three
1. Win + r, cmd enter command line 2, vmic enter client; 3, execute: memorychip to view memory information: wmic:root\ cli > memorychipAttributes BankL
Gateway address, broadcast address, assigneable IP address range gateway address of Linux network and process 100.0.16tick 28 corresponding network segment: default is maximum Ip address 100.0.254 broadcast address: 100.0.0.255 assigneable IP address range:
Build a Harbor private warehouse and open a new virtual machine: CentOS 7-2 192.168.18.134 (you can set the network card to static IP) `deploy docker engine `[root@harbor ~] # yum ins
Kubectl Overview Kubectl is a command line interface for running commands against the Kubernetes cluster. The configuration file for Kubectl is in the $HOME/.kube directory. We can set the KUBECONFIG environment variable or set the life
K8s architecture figure 2. K8s architecture model: master (cluster) / worker (node) architecture master component: 1.kube-apiserver: provides restful interface instructions for clients or other components to call
Docker image creation method Docker image creation method there are three ways to create an image, namely, based on the existing image, based on local template, and based on Dockerfile. The following focuses on these three methods to create an image. First, based on the existing image
Log: historical event: time, place, person, event date, time, event record format: date time host process [pid]: event content C pid S architecture: log recording transmission is completed through the service of TCP or UDP protocol, and logs distributed on different hosts are centrally managed rsy
1) initialize the random password mysqld-initialise [root @ host-172-16-61-102root] #. / mysqld-- initialize2020-02-15T07:01:38
1. Install lampapt-get install-y apache2 mariadb-server php7.3 php7.3-xml php7.3-curl php-zip php-dom php-
Do PV based on NFS service: install NFS service and rpcbind service: 1. [root@master yaml] # yum install-y nfs-utils rpcbind # notice here that NFS should be installed in all three.
1. Describe the naming rules and uses of the system directory names for Linux distributions. Directory naming rules: (1) the maximum length of the file name is 255bytes (2) the maximum length of the file name, including the path, is 4095 bytes (3) all characters are valid except the slash and NUL. Items that can use special characters
Kubectl briefly states that before you learn how to use kubectl more effectively, you should have a basic understanding of what it is and how it works. From the user's point of view: kubectl is the cockpit that controls Kubernetes. It allows you to perform all possible Kuber
Nginx process model Nginx server, normal operation process 1. Multiple processes: one Master process, multiple Worker processes 2.Master process: manage Worker process 3. External interface: receive external operations (signals)
ConfigMap and Secret are two special types of storage volumes in Kubernetes. ConfigMap, a resource object, is mainly used to provide configuration data to customize program behavior, but some sensitive configuration information, such as user name, password, key, etc., are usually
When using the following command to push: ffmpeg-re-I a.mp4-vcodec libx264-acodec aac-f flv rtmp://172.31.102.165:1935/myapp may
