postgresql high availability

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

Highavailabilitytoolkit High Availability toolkit includes des several solutions by which achieving architecture with high availability is a easy thing.Background The high availability of the Core Application System of Internet

, compare the locations of the masterbinlog read by the I/O threads between slave nodes, and select the closest slave as the latestslave node. Other slave logs are generated by comparing with latest slave. Apply the binlog stored from the master on the latest slave and upgrade the latest slave to the master. Finally, apply the corresponding differential relay logs on other slave instances and start copying from the new master.When MHA implements Master failover, MHA Node attempts to access the f

A brief introduction to the principle1.HAProxyHaproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications, supporting virtual hosting, which is a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded, and often require session-hold or seven-tier processing. Haproxy runs on today's hardware and can support tens of thousand

Tags: virtual priority dir Server configuration fix check Maria x86 BubukoThere is a single point of failure for a MySQL host in the production environment, so we want to make sure that MySQL is high availability, that is, if one of the MySQL servers is hung up, the other one can immediately take over. MySQL's high-availabili