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linuly
Level 4

hi,

i like to understand what happen when failover happen.

the resource group stop->means that application resource shutdown ,then umount file system,so on.right?

what happen if the application can not shutdown properly? 

1 REPLY 1

frankgfan
Moderator
Moderator
   VIP   

during a service group failover/migrate, if the application can't be shutdown (within the resource offline time limit) shutdown gracefully, agent CLEAN script will be called to forcefully (like kill) offl;ine the resource.   There are multiple agent/resource offline timeout/limit attributes which can be tuned.  If even clean script os not able to "kill" the process(application), the node will be rebooted to prevent data corruption. 

There are many agent/resource parameters,  Run the commands below to view them

1. haagent -display <agent name>

2. hares -display <resource name>

the details of the above mentioned parameters are in the VCS admin and agent guides.