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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.   Advantages of network installation: 1) Scaling: assembling multiple mainframes at the same time; 2) Automation: automatic installation system, configuration and other services; 3. ...

The whole process of building hadoop cluster includes preparation in advance Install zookeeper and configure the environment Compile, install and start hadoop Install HDFS to manage namenode and dataname to manage cluster hard disk resources Install and start yarn to build MapReduce to manage cpu and memory resources 01 Preparation ...

Business Background In PHP environment, the export function is optimized and transformed, and the single synchronous export data volume is more than 20,000. PHP 5.6 + PHPExcel. This time PHP 7.2 + php-ext-excel-export was replaced by PHP 5.6 + PHPExcel. Official github address https://github.com/viest/php-ext-excel-export Extended installation ...

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 ...

1. Installing PHP and Extension Packagerpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm yum -y install php56w php56w-gd php56w-mysql php56w-bcmath php56w-mbstring php56w-xml php56w-ldap2. Install mysql and configure itrpm -ivh http://dev.mysql.com/get/mysql-community-release ...

1 Install the new version of python. Download Python-2.7.13.tar.gz and decompress it to run. / configure & make & make install. You need to configure the python program in $PATH and execute Ln-S Python 2.7 Python under / usr/bin to make a new link. This will result in the failure of the yum program. Errors were reported as follows: ...

apache configures https1. yum installs OpenSSL and openssl-devel, httpd-devel2. Generate certificates (which can also be obtained from the company's certification authority):#Create server key OpenSSL genrsa-des3 1024 >/usr/local/apache/conf/server.key    # Remove passwords from keys (to avoid being asked for passwords af ...

A Brief Introduction to cobbler Operational and maintenance automation includes standardization, instrumentation, Web-based, service-based and intelligent levels. In a production environment with a slightly larger scale and thousands or even tens of thousands of servers, instrumentation system installation process and unified system installatio ...

Resource address: Get the CM package (tar.gz)         http://archive-primary.cloudera.com/cm5/cm/5/ Get CDH packages         http://archive.cloudera.com/cdh5/parcels/5.6/ I. Environmental preparation 1. Install JDK (each node) 1) decompression (/opt)         tar zxvf jdk-7u55-linux-x64.tar.gz (2) Configuration/etc/profile         vi ...

zhuanzaidizhi: https://www.qiansw.com/yum-lnmp.html To demonstrate the simplicity of using linux, all the applications used in this article are installed using yum. Install CentOS System This article assumes that you have the ability to install the CentOS system and will not explain the installation process. The operating system used in thi ...