freeswitch high availability

DRBD is actually a block device implementation and is mainly used in high availability (HA) solutions on the Linux platform. It is composed of kernel modules and related programs. It synchronizes the entire device through network communication, which is somewhat similar to a network RAID function. That is to say, when you write data to a file system on a local DRBD device, the data will be sent to another h

Mysql High Availability LVS + KEEPALIVE + MYSQL, lvskeepalive1. Architecture Diagram Note: (1) Mysql needs to remove the bind-address Configuration; otherwise, virtual ip access cannot be implemented. (2) Disable all linux firewalls:/sbin/iptables-F (may be useless) (3) restart networking: sudo/etc/init. d/networking restart (may be useless) 2. Architecture Mysql: Master 10.24.6.5: 3306 (system! System)

The high-availability scenario is actually a lot, and there are a lot of costs that are very low and simple. For example, if you have a website, the simplest is to nds+nginx+ two machines.Since we are a client project, DNS applications are cumbersome, so consider using Keepalived+nginx as a high-availability solution.T

Exchange server2013 Series 7: high availability deployment of Client Access Servers Du Fei In the previous article, we introduced the High Availability Technology of client access servers. From this article, we will look at a detailed high

1. Experimental planning:mytest1:192.169.201.7mytest2:192.169.201.8vip:192.169.201.100Server for NFS mytest3:192.168.201.92. Set the hostname for each node.Write the following information to the/etc/hosts file for each node:Mytest1 192.169.201.7Mytest2 192.169.201.8Write the host names of each node to the/etc/sysconfig/network file.3. Set the information relationship for each node:Execute on Mytest1:Ssh-keygen-t Dsa-p "-F ~/.SSH/ID_DSASsh-copy-id-i ~/.ssh/id_dsa.pub [email protected]Execute on M

First, HAProxy 1.haproxy Introduction HAProxy is a free, fast, and reliable solution that provides high availability, load balancing, and proxy software based on TCP (layer fourth) and HTTP (layer seventh) applications that support virtual hosting. Haproxy is a free and open source software written in C language Haproxy is especially useful for Web sites that are heavily loaded, and often requ

MHA IntroductionMHA is a MySQL, a Japanese MySQL Daniel written in Perl failover scheme to ensure the high availability of the database system. During downtime (usually within 10-30 seconds), complete failover, deploy MHA, avoid master-slave consistency issues, and save on the cost of purchasing new servers, Does not affect server performance, easy to install, and does not change existing deployments.also s

First, Introduction Whether keepalived or heartbeat is highly available, its high availability is all about the high availability of server scripting, not the service perspective. In other words, if the server down machine or network failure, high

Tags: admin replace log-bin more than 1.7 factory monitor MySQL configuration EPOOne, mysql-mmm (master-master Replication Manager fo MySQL) MMM overview Dual-master failover and routine management procedures Consists of multiple MySQL master servers and multiple MySQL slave servers MMM is developed using the Perl language and is primarily used to monitor and manage MySQL Master-master (dual master) replication Its internal additional tool scripts can also implement read loa

Background of the "MySQL" "High Availability" purge_relay_logs tool:? In the MHA high-availability architecture to switch the steps, mainly by the individual instances of the relay log file compared to the old and new, select the latest relay log for the data in the group to append, as far as possible to ensure the sec

keepalived configuration file on the 192.168.1.126 (red arrow is required to change) Create a detect MySQL script Start keepalived 5. View Login 192.168.1.163 View VIP Login 192.168.1.126 view, no VIP 6. Test MySQL for high availability Create a user on any MySQL computer for testing Turn off the primary master sync feature Create a database on 192.168.1.63 with the user you just created View the d

Percona XtraDB Cluster (hereinafter referred to as PXC) is an open source MySQL high-availability solution. It integrates Percona server and Percona xtrabackup with the Galera library to enable synchronous multi-master replication. The topology of each node is as follows:　　　　, PXC each node's status is equal, each node in the cluster can be used for reading and writing, as long as the number of available no

Tags: row manager repos Issues syn ITER SCH wal etcCentos7 under mysql5.7-mmm High availability cluster MMM introductionMMM (Master-master Replication Manager for MySQL, MySQL primary master replication Manager)is a set of scripts that support dual-master failover and dual-master daily management. MMM is developed using the Perl language, which is mainly used to monitor and manage MYSQL Master-master (dual

1. Working logic diagram 650) this.width=650; "Src=" http://192.168.1.195:8090/download/attachments/524471/22542025026.jpeg?version=1 Modificationdate=1446626151000api=v2 "/> 2, mysql-mmm advantages and disadvantages Advantages: High availability, scalability, automatic failover, for master synchronization, at the same time only provide a database write operation, to ensure the consistency of the data. Cons

(provided that the mysqld and keepalived processes are turned on)#mysql-H192.168.17.166-UAARON8219-PZLM3. Close one end of the network card, test the whereabouts of the VIP, and whether the VIP can be properly logged in#Ifdown eth0#ip a show#mysql-H192.168.17.166-UAARON8219-PZLM4. Restart one end (host simulation host failure), test the whereabouts of the VIP, and whether the VIP can be properly logged in#Init 6#ip a show#mysql-H192.168.17.166-UAARON8219-PZLM5. Kill the keepalived process direc

Ansible automatic operation and Maintenance tool configuration Ngnix front end to back-end real machine, and set keepalived high availability, on the back end a real host configuration httpd,mysql,php-fpm; set memcached cache server on this real host (Because of my Computer configuration problem, can not open so many virtual machines, so simply build a bit)IP configuration:Directory1 (MASTER):eno16777736:17

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

SQL Server 2005 ranks SQL server in the ranks of enterprise-level databases. In terms of high data availability, SQL Server 2005 provides users with data mirroring, replication, failover clustering, and log transmission functions. The following describes the SQL Server 2005 image function. Database images can only be used in basic versions or later versions.What is a database image? Robidoux: database image

This set of solutions is also one of the solutions tested some time ago. This solution is relatively easy to deploy and maintain. In simple terms, keepalived is a mechanism specifically designed to provide high-availability features for lvs. It can realize that when there are two master-slave lvs and the master lvs is damaged, transfer the IP address and lvs to the backup lvs. Its

DirectoryOpenstack-mitaka Overview of High AvailabilityOpenstack-mitaka High-availability environment initializationOpenstack-mitaka High-availability Mariadb-galera cluster deploymentOpenstack-mitaka High