Taking too much time to detect that the node is offline
I'm using Ice version 3.7.4. Registry and a node are deployed on different hosts. After the node status become active, I unplug the network cable of the node host.
For now, it takes over 10 even 30 seconds for registry to update the status of the node.
I have turned on all the trace configuration for registry including "Ice.Trace.Network" and "Ice.Trace.Protocol" and there is nothing between "Protocal: sending close connection" and a operation "nodeDown" during this no-response time.
I am not using Glacier2 and I have tried IceGrid.Regitry.NodeSessionTimeout property, and it does not work. I notice information of IceGrid Sessions in manual. Should I create session and involke keepalive on server?
Could you give me some advise? Thanks for your help!