webpass availability

from http://bbs.chinaunix.net/thread-3769165-1-1.htmlRecently took some time to study the high availability of MySQL, summed up as a document, hoping to beginner this helps. Lvs+keepalived+MySQL single-point write Master Sync High-availability scenario http://blog.chinaunix.net/uid-20639775-id-3337448.htmlLvs+keepalived+MySQL Single-point write read load balancer primary master synchronization High-

ObjectiveHttp://blog.chinaunix.net/uid-20639775-id-3337432.htmlLvs+keepalived+mysql single-point write master synchronization high-availability schemeHttp://blog.chinaunix.net/uid-20639775-id-3337448.htmlLvs+keepalived+mysql single-point write read load balancer primary master synchronization High Availability scenarioHttp://blog.chinaunix.net/uid-20639775-id-3337471.htmlHeartbeat high-

I. OverviewThe previous article has described the enterprise high-availability load-related architecture and implementation, which commonly used nginx or Haproxy,lvs combined with keepalived to do the front-end high-availability scheduler, but did not mention that the session is highly available to maintain;This article implements the Tomcat Memcache session server high-

Configure httpd High Availability Service Based on Heartbeat in Linux Heartbeat is an open-source Linux-based, widely used high-availability cluster system. We can build a web high-availability service environment based on Heartbeat. This article provides a simple example in CentOS 6.5 and analyzes its logs for your reference. For more information about Heartbeat

When deploying a mailbox server in an enterprise, we are pursuing a primary goal: High Availability of the Exchange Mailbox server. In general, it is how to reduce the downtime of the mailbox server. It is our mailbox administrator's responsibility to ensure that enterprise email servers can run without faults. However, the moon is overcast and clear, and the sky is unpredictable, and the mailbox server will also be ill. Therefore, when deploying the

The memory-based Redis should be the most commonly used Key-value database in various web development businesses, and we often use it to store user login states (session storage) to speed up some of the hot data queries (compared to MySQL, which has an order of magnitude improvement), Do simple Message Queuing (Lpush and Brpop), subscription Publishing (PUB/SUB) systems, and so on. Larger-scale internet companies typically have dedicated teams that provide Redis storage as a basic service to ind

Label:2015-10-25 Directory Resources [1] Tang Hanming. mysql database development, optimization and Management Maintenance (2nd edition) [M]. Beijing: People's post and Telecommunications press, 2014 [2] Schwartz. High-Performance MySQL (3rd edition) [M]. Beijing: Electronics Industry Press, 2013 [3] Sharing the various high-availability technologies in MySQL (from Kang Daniel) [4] MHA working principle [5] Technical combat: High

You do not have to get others' consent in everything. As a professional Web developer, you are an advocate of your guest hobbies and needs. You must stick to your understanding of good user experience, make sure that your visitors may still find their path in a complex website architecture. This means that when discussing with users and colleagues, you must be able to stick to your position and effectively convey your own ideas. In fact, your job is to compromise on wrong ideas and misleading co

The previous article written the Nginx load balancer, this article realizes the high Availability (HA). The overall design of the system is to use Nginx to do load balancing, if there is an nginx single-machine failure, the whole system will not function properly. For the high-availability requirements of system architecture design, we need to solve the requirement of normal operation of the system when the

High Availability of spring cloud config distributed configuration center, springcloud In the previous article, we implemented the unified management of configuration files, but we can find that we only use one server. If this server fails, the entire configuration center will be unavailable. Next, we will solve the high availability problem of the configuration center. The following describes how to integr

Oracle released MySQLFabric to simplify the high availability and scalability of MySQL. Beijing, May 28, 2014-Oracle announced the launch of MySQL Fabric to meet current requirements for Web and cloud applications. MySQL Fabric is an integrated system that simplifies the management of MySQL database groups. This product provides high availability through the fault detection and failover functions, and achie

off# Service mysqld start# Scp/ect/my. cnf node2:/etc# Scp/etc/init. d/mysqld node2:/etc/init. d# Service mysqld start# Mysql Test whether mysql is normalMysql> create database mydb;Mysql> grant all privileges on *. * to root @ '%' identified by 'asdasd ';Mysql> flush privileges;# Service mysqld stop# Service heartbeat start# Ssh node2 'service heartbeat start'# Hb_guiNote:1. The above command must be connected and configured on the DC. Otherwise, the startup will fail. Check which node is DC.

CentOS 6 High Availability service Heartbeat v3 installation and configuration System: CentOS 6.6 x86_64 (two virtual machines)Security: SElinux disabledNetwork: Business Network + heartbeat NetworkHeartbeat version: v3.0.6Cluster Gule version: v1.0.12 Resource Agents version: v3.9.6 Package installation method: source code Installation Heartbeat 3.0 and later are composed of three parts: gule, heartbeat, and agents. Therefore, we need to install them

Microsoft's Hyper-V virtualization Management Program has aroused widespread attention in the industry since its launch. This document compares the high availability and fast migration capabilities of Hyper-V with the real-time migration capabilities of VMware's VMotion. Before conducting a detailed analysis, we also need to understand why high availability plays an essential role in virtualization applicat

Configure high availability for Redis Based on Keepalived Configure high availability for Redis Based on Keepalived For more information about Keepalived, see my related article: Function IP address Install software Primary redis 10.13.6.13 Redis, keepalived From redis 10.13.6.16 Redis, keepalived VIP 10.13.6.17 I. redis master-slave Constru