freeswitch high availability

Images and information from MySQL Daniel Kang teacher (MySQL Technology insider author)Kang: Technology manager of NetEase Hangzhou Research Institute leading INNOSQL DevelopmentMySQL high availability comparison of various technologiesThe reliability of the database refers to the reliable dataA database can be used to refer to the availability of database servic

Configure the NTP server and Heartbeat V1 for httpd High Availability Establishment and use of NTP servers In high-availability clusters, the time requirements for each node are strict. Therefore, we need to configure an NTP server to implement the time synchronization of highly available clusters. Point other node tim

MySQL High-availability components MHA parameters MHA is currently a relatively mature solution for MySQL high availability, developed by the Japanese, and is an excellent set of highly available software for failover and master-slave upgrading in MySQL high-

"Guide" This article focuses on SQL Server 2000, which describes how to use SQL Server log transfer to implement high availability of a database. Clustering is an effective solution for achieving high availability, sometimes counterproductive. And it's very expensive. As a result, database administrators can use log t

Before we talk about the high availability of SQL Server, let's start with the high availability of single-instance. In single instance high availability, the high

replace the specified requirements and expectations, so that services can be provided to meet these requirements The underlying strategies for "How to do", such as cluster high-availability, dynamic resource allocation are defined to this layer, and are programmed to manage. With clustering we no longer need a single server for work, which is the subject of this book and why this is so important to the su

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+keepalive

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 scenario

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 articl

industries and enterprise users can create an online audio and video platform through simple development. Now, Netease video cloud technical experts share a technical article on the principle and practice of high availability of HBase.Preface Some time ago there was a small problem with the online HBase, which caused the HBase cluster service to be stopped for two hours, as a result, service exceptions als

Linux high Availability (HA) cluster keepalived detailed 2013-08-22 16:18:34 tags: Linux HA high available cluster keepalived Detailed original works, allow reprint, reprint, please be sure to hyperlink form to indicate the original source of the article, author information And this statement. Otherwise, legal liability will be held. http://freeloda.blog.51cto.co

High Availability is divided into three layers: 1. Implementation of the underlying information layer:HeartbeatCorosyncCman2. Resource Management, implementation method:Heartbeat-V1: haresourceHeartbeat-V2: crmHeartbeat-V3: pacemakerRHCS: rgmanagerNote: Resource Manager pacemaker can be used in combination with all underlying communication implementation methods.3. Resource proxy layer, implementation metho

hangs off, and does not affect the otherNameNode。 ANameNodeThe namespace and its corresponding block pool are called namespace volume. It is the basic unit of management. When aANameNode/nodespace was removed after all itsDataNodeThe corresponding block pool will also be deleted. Each namespace volume is upgraded as a base unit when the cluster is upgraded.HDFS High AvailabilityThrough jointuse inBacking up Namenode metadata in multiple file systems

Typically, enterprise-class applications use more expensive hardware and software devices to improve system availability.such as IBM's minicomputer and even midsize machine mainframe and proprietary operating system, Oracle database, EMC storage devices and so on.Internet companies are increasingly using PC-class servers, open-source databases, and operating systems, and these inexpensive devices reduce availability while saving costs.In particular, t

High Availability of MySQL-keepalivd + mutual master and slave, mysqlkeepalivdObjective: to configure a keepalived Hot Standby architecture and master-slave ReplicationPlanning:Master1 zlm177 192.168.17.177Master2 zlm188 192.168.17.188Vip 192.168.17.166Environment: Red Hat Enterprise Linux 6.4Percona Server 5.6.15 I. Software Installation Go to the official website: Keepalived-1.2.13.tar Cp keepalived-1.2

This article will cover another high-availability implementation of MySQL, namely MHA (Masterhigh avaliable). Master HA. is an open source high-availability program that provides MySQL's master-slave architecture with the ability to automatically recover from failures. I. Introduction of BASIC knowledge 1. MHA definit

Mysql high-availability architecture solution II (keepalived + lvs + read/write splitting + Server Load balancer)Mysql master-slave replication and lvs + keepalived for high load availabilityDirectory1. Preface 42. Principle 42.1 Overview 42.2 Working Principle 42.3. Actual purpose 43 solution 43.1. Environment 43.2 architecture 53.3 Design Principle 64. Install

Redis High-availability architecture best Practices First, preface May 13, 2017, the application performance Management auditorium Guangzhou station successfully ended, among them from 37 Mutual entertainment DBA Wen in the venue and you have a wonderful Redis technology sharing. Redis is an open source API that is written in ANSI C, supports the web, can be persisted in memory, key-value databases, and

Before talking about the high availability of SQLServer, we should first talk about the high availability of a single instance. In the high availability of a single instance, the high

Microsoft in Exchange high-availability scenarios with the introduction of Exchange 2013, the DAG scenario is becoming more and more mature. Exchange's highly available scenarios vary greatly in the exchange2003 to Exchange 20,103 editions, in the Exchange 2003 era, when Microsoft introduced shared storage, combined with the OS failover cluster, launched a host-level hi