heartbeat+DRBD+mysql+haproxy
heartbeat+DRBD+mysql mainly realizes the single point of failure of mysql master
haproxy implements load balancing from mysql
Specific architecture di
Application monitoring refers to real-time monitoring, analysis, and alarming of application performance, traffic, bandwidth occupancy, popularity, user behavior, user source channels, and user client environment from the application layer. Application monitoring has the advantages of small impact on the original system and simple implementation.
heartbeat+DRBD+mysql+haproxy
heartbeat+DRBD+mysql mainly realizes the single point of failure of mysql master
haproxy implements load balancing from mysql
Specific architecture di
I. Introduction to the experimental environment
Hardware: lenovo T410S
Software: VMWARE workstation
SO: Centos 6.6
Second, the purpose of the experiment
Realize the hi
Configuration premise:
1. Time must be synchronized, It is recommended to use ntp protocol
2.Required between nodes To communicate with each other through the host name;The name used in
1. Environment
System: CentOS 6.4×64 Minimal Installation
node1: 192.168.1.13
node2: 192.168 .1.14
vip: 192.168.1.15
Second, basic configuration
The operation of
My CouchDB (production) server is sometimes shut down, and I don’t want to do it. While checking the logs, I noticed that Erlang/CouchDB (one or the other) sends heartbeats, And monitor the heartbe
In the previous blog http://blog.csdn.net/happy_life123/article/details/46401663, we talked about using haresource to configure virtual IP, but At present, most people use crm for resource manageme
I learned about the general scheme of OpenStack high availability a while ago. For example, the HAProxy+Keepalived scheme is used here, which reminds me of the previous configuration of LVS Used He
Instructions for the future development of Hearbeat software (after 2.1.4):
resource agents Resource agent layer
(pacemaker) information to be added!
Production scenarios (mainly
first uninstall the mounts corresponding to the original disk devices on the two nodes Directory, and comment out the relevant lines in fstab to prevent automatic mounting when the system starts
This is a reprinted article. Because the source code compiles through, but the shellfunc file is still missing, so I checked it from rpm Package installation, found this article. Combine this link: