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ELK Construction Demand Background Business volume is huge and servers are more and more Need to centralize log management Why use ELK A complete centralized logging system needs to include the following points: 1. Collection - Ability to collect multiple types of logs 2. Transmission - ...

kong cluster deployment Attached official cluster reference documenthttps://docs.konghq.com/1.2.x/clustering/ (1) Installing kong on multiple servers Prepare the server environment for centos7, the first server for centos6, install kong, and execute the following code: $ sudo yum update -y $ sudo y ...

I. Preface Linux cluster can be divided into two categories: high availability cluster and load balancing cluster. Only high availability clusters are discussed here, and load balancing is explained in the next blog post. High Availability Cluster (HA) consists of two or more servers, usually two servers, one of which works and the other is r ...

Apache HTTP Server is an excellent Web server software that provides front-end user-oriented application capabilities.In the actual production environment, in order to provide richer and more powerful web application functions, it often needs the support of background database, web page programming language and other roles. As a qualified main ...

mmm High Availability Cluster Introduction: High Availability Cluster Introduction: The main standby mode, when the main can not provide services, the standby host replaces it to provide services. This process is transparent to the client. I. Preparatory Work 1. Prepare five linux servers: master (192.168.4.122), master (192.168.4.123) From ( ...

Principle: corosync provides the function of message layer of cluster, transfers heartbeat information and cluster transaction information, and monitors heartbeat by multicast between multiple machines. pacemaker works in the resource allocation layer, provides the function of resource manager, and configures resources with crmsh, the comman ...

1. pkg.available_version modulepkg.available_version: Returns the latest version of the queried package that can be installed or updated. If multiple packages are specified, the returned results are output in the form of a dictionary.[root@salt-master ~]# salt '*' pkg.available_version httpd salt-minion02.contoso.com: & ...

CentOS 5 series system comes with syslog 1.4.1centos6 series with rsyslog version 5.8.10CentOS 7 series with rsyslog version 7.4.7At present, the latest version of rsyslog is 8.27.0. rsyslog reconstructs the imfile module from 8.5.0. The wildcard can be supported in the file name.rsyslog: http://www.rsyslog.com/To upgrade rsyslog, you need to c ...

Chapter 1 Introduction of Network-wide Backup Project Summarize, backup and save all important data on all servers in the whole network architecture! Automation: Automatic Backup of Data Information Normalization: avoid backup data errors Chapter II Implementation Process of Network-wide Backup Project 1. Plan and define the backup se ...

Anti-forgery code: There can be no inner peace without considerable loneliness.1. OverviewPercona XtraBackup (PXB) is a backup tool developed by Percona for the physical backup of MySQL databases. It supports MySQl (Oracle), Percona Server and MariDB, and is open source. Taobao's RDS for MySQL physical backup is based on XtraBackup.Xtrabackup h ...