How long a node failover and another node take over resources on HA cluster?
I don't have much experience in clustering. And I'm deploying a cluster system on CentOS. But I don't know how long a node failover and another node take over those resouces to continue running service is good, fast or slow? 1s, 10s or ??
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Hello and Welcome to LinuxQuestions,
You can easily configure the time to declare a node as unavailable (dead) in your cluster setup. Since you didn't specify what clustering/high availability software you're using it's hard to tell you what to put in the config. In HeartBeat for example you can use: Code:
# To what value you should set the parameters is up to you, if your services are business critical then you should set them low in order to have a higher disponibility meaning that if one node fails for that limited amount of time then the resources/services will be moved. You can also opt-out of failback, meaning that if resources/services are moved to another node, they will not be re-moved when the failing node becomes available again. Kind regards, Eric |
Sorry, it's my fault, and thanks for your help. I used lucci and ricci (Clustering software group on CentOS) to setup HA system. Could you tell me the standard to estimate the HA system? Here is my /etc/cluster/cluster.conf.
Code:
<?xml version="1.0"?> |
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