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Environmental Introduction IP role 172.16.20.105 master 172.16.20.106 slave1(manage) 172.16.20.107 slave2 Install mysql Download the mha installation package https://code.google.com/archive/p/mysql-master-ha/downloads?page=1 mha installation ## Install dependency packages (all nodes ...

Preface: Recent tidy up some of the previous study notes. In the past, they were stored locally, and this time they were transferred to the network for reserve.   DNS Domain Name System As a distributed database that maps domain names and IP addresses, it makes it easier for people to access the Internet. At present, the limit for the leng ...

Bowen outline:(1) Concepts related to GlusterFS.(2) The deployment of various volume types of GlusterFS and the use of client mounting.(3) GlusterFS maintenance command. (1) Concepts related to GlusterFS: GlusterFS is an open source distributed file system, and is also the core of Scale-Out storage solution Gluster. It has powerful horizonta ...

Introduction to iSCSI iSCSI (Internet Small Computer System Interface, pronounced / sk zi/), Internet Small Computer System Interface, also known as IP-SAN, is a storage technology based on the Internet and SCSI-3 protocol. It was proposed by the IETF and became an official standard on February 11, 2003. iSCSI is a TCP/IP-based protocol for es ...

ASM Filter Driver is a new function that can replace ASMLIB and udev settings. It can replace ASMLIB and manual settings of udev rules files, and most importantly, I/O Filter functions. The so-called I/O Filter function can reject all invalid I/O requests. The main function is to prevent accidental overwriting of the underlying disk of the ASM ...

Today, there is a sudden whim to transfer the blog to your own cloud server. Well, it's a good idea, just able to practice. In order to do this, we must first have a database, linux with mysql. Ouch, that's good. Two words don't mention the installation method of yum [root@VM_235_40_centos ~]# yum install mysql Loaded plugins: fastestmirro ...

Overview: Monitoring system is very important in a system. It will display a lot of important information, such as memory information, cpu information and hard disk information. When the system has problems, we can locate and repair the errors in time. The monitoring system introduced today is a lightweight monitoring system, Cacti, with the c ...

1. AB Pressure Test Tool (ApacheBench) 1. Installation linux Installation yum -y install httpd-tools windosinstall // Download Apache software (ab software is not updated separately, but integrated independently into Apache) download https://de.apachehaus.com/downloads/httpd-2.4.39-o102s-x64-vc14.zip // Open Compressed Package unzip httpd-2 ...

1. Linux Operating and Maintenance Experience Sharing and Troubleshooting 1.1 Basic Strategy and Experience of Online Server Installation Streamlined installation strategy: Installation only required, on-demand installation, no need not not install Development package, basic network package, basic application package 1.1.1 CentOS-6.x 1.1. ...

Uninstall the old version See if MySQL Server is installed on the system: Use the following command to check whether MySQL Server is installed rpm -qa | grep mysqlIf it exists, use some commands to uninstall rpm -e mysql //General deletion mode rpm -e --nodeps mysql // Strong deletion mode, if you use the above command to delete, ...