Programmer Group

Average load and CPU utilization In real work, we often confuse the average load and CPU utilization, so here, I also make a distinction. You may wonder, the average load represents the active input. If the average load is high, doesn't it mean the CPU utilization is high? We still need to retu ...

corosync v1 + pacemaker Corosync: an open cluster engine project derived from the development of OpenAIS to Wilson, which provides heartbeat message detection and member management. Pacemaker: cluster explorer. It uses the message and member management capabilities provided by the cluster infrastructure (OpenAIS, heartbeat or corosync) to dete ...

In the previous blog post, I mainly talked about the simple management of lxc container on Linux. For a review, please refer to https://www.cnblogs.com/qiuhom-1874/p/12901493.html Today we will introduce lxc's image management tool, LXC WEB Panel; Project download address: https://github.com/lxc-webpanel/LXC-Web-Panel.git； 1. Install Python fl ...

rsync+lsyncd to realize real-time file synchronization yum -y install rsyncd (both the synchronized end and the synchronized end need to be installed) 1. Provide lsyncd installation source rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm 1 2 2. Dependency of installing lsyncd from yum yum -y install ...

1,EOF  In Shell, EOF is usually used in combination with < to indicate that the subsequent input is used as the input of subcommand or subshell, until EOF is encountered, and then returned to the calling Shell. EOF can be replaced by something else, meaning that content is passed to the program as standard input. Review the use of <. W ...

What is SaltStack SaltStack management tool allows administrators to create a consistent management system for multiple operating systems Preparation of experimental environment Name role address centos7-min master 192.168.142.172 centos7-min2 client 192.168.142.110 Experimental steps ...

Version control gitlab Version control definition: It refers to the management of changes of various program codes, configuration files, instruction documents and other files in the process of software development Version control function 1. Tracking document changes 2. Parallel development 3. Effectively solve the ...

Ansiable bulk configuration management through playbook playbook is composed of one or more modules. It uses many different modules to accomplish one thing. Install a service, configure, and start. 1. Find someone to shoot. 2. General tasks. 3. How to do it. Install httpd Service - > Playbook 1. i ...

centos7 system yum installs testeract, and pip installs testserocr of python3 September 4, 2018 00:00:27 reading: 15 label: centos7python3tesserocr More Personal classification: python Copyright notice: This is the original article of the blogger. It can't be reproduced without the permission of the blogger. https://blog.csdn.net/zyy24779614 ...

Check before configuration 1. First, make sure that Rsync has been configured and the client can push files to the server [test@C64-6-B ~]$ rsync -avzP ./syncdir rsync_backup@2.2.2.5::syner --password-file=/etc/rsync.password sending incremental file list syncdir/ sent 52 bytes received 12 bytes 42.67 bytes/sec total size ...