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Custom Monitoring (Aliyun & Zabbix)At present, Aliyun has limited ports to 25, so it is impossible to set up a mail server on Aliyun to send alarm mail. If you need mail notification, you can take the following methods:1. Open an E-mail with Aliyun Enterprise2. Use Aliyun to monitor and alarm3. Third-party zabbix custom script monitoringI. ...

Background: Before I looked at the company's data import platform, imported user order records, using SpringBook's own Scheduled task scheduling function, and then notified developers by e-mail whether the task scheduling was successful. Overall, the function is to support the existing business, but developers can not clearly understand the sta ...

I. Environmental preparation This time, two Linux hosts, operating system for CentOS 6.8, have installed the same version of MySQL. (MySQL 5.7). The firewalls of both master and slave servers are opened on port 3306. The relevant information is as follows: [Main Server] IP: 192.168.236.100 [slave server] IP: 192.168.236.101 II. Co ...

In the previous article, we used the scrapy framework to crawl information about 112W users, followed by analysis, processing and front-end visualization of this information. Tools used Java web servlet + jsp mysql database echarts The key point here is echarts, a visual development tool based on canvas developed by Baidu, or very useful. ...

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 ...

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 ( ...

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 ...

This is a simple story of data production import, the original story should be as follows: data collation - > test verification - > production release - > production verification, and then back to home, so this should be a plain story, but in fact it has become the following plot: data collation - > test verification - > producti ...

> Original address: MyCAT Source Analysis: [Single Library Form] Query > MyCat-Server with annotated address: https://github.com/YunaiV/Mycat-Server > (vii) This series is updated every 1-2 weeks. You are welcome to subscribe, follow and collect GitHub: https://github.com/YunaiV/Blog 1. Overview 2. Receiving requests and parsing SQ ...

Tomcat service setup steps Initialization of an environment begins with the first graphical interface entered after installation Configure the server to work in command line mode Close iptables and selinux Configure the local YUM source Restart the server to display the demo effect 2. The environment needed to install tomcat Install ...