< span style="font-size:11pt;">Prepare two virtual machines with IP addresses 192.168.1.4 and 192.168.1.3
span> < /span> Synchronize node time , Set the time synchronization on the two virtua
< span style="font-size:11pt;">Prepare two virtual machines with IP addresses 192.168.1.4 and 192.168.1.3
span> < /span> Synchronize node time , Set the time synchronization on the two virtua
Introduction to Heartbeat
The working principle of Heartbeat:
Keeplived and heartbeat high availability are operating system level, not (software level), you can use simple Script to achieve high availability at the software level.
Highly available serverSwitch
Common condition scenarios:
Reference 1: http://os.51cto.com/art/201412/461533.htm
Reference 2: http://www.voidcn.com/article /p-fhezbfkb-qq.html
Reference 3: http://network.51cto.com/art/201010/230237_all.htm
DRBD+HeartBeat+NFS: Configure NFS high availability
Description:
I studied the installation and configuration of DRBD last week, and today I’m studying the first application of DRBD. DR
First confirm whether the heartbeat status is normal and whether there is a secondary IP
[root@data-1-1 data]# ip add|egrep “0.17|0.18” inet 10.0.0.17/24 brd 10.0.0.255 scope global secondar
DRBD+Heartbeat+Mysql: Configure mysql high availability
Description:
Today I will continue to study the second application of DRBD, using DRBD+Heartbeat+Mysql: configure mysql high avai
DRBD+HEARTBEAT+NFS brief command record
Preliminary preparations: add disks to 2 machines, and connect 1 heartbeat sync line to the network
by fdisk- l It can be seen that there is a de
Disclaimer: The following are just some personal summaries and accompanying writing. If there is something wrong, please also point out the netizens who have seen it, so as not to be misleading. Th
heartbeat+httpd HA installation preparations
Description
1, server information
First verify the basic functions of HA through heartbeat, two nodes The server provides httpd service, verify th
1. Planning
System CentOS 64bit
DRBD version 9.0.0
Heartbeat version 3.0.6< /span>
MySQL version 5.6.27
< span style="font-family:'黑体', SimHei;"> DRBD disk/dev/sdb1< /