> > So when we shutdown a node all other node starts object recovery
> immediately?

Ok, let explain me by a simple example:

- 3 nodes with 1TB disk space, --copies 2
- 50% used

Now I want to install a new kernel on one node, so I need to reboot, which 
takes about 3 minute.

At reboot, when sheepdog is stopped, both remaining nodes start object 
recovery. Each node
needs to copy about  0.5*0.5*1TB = 250GB of data.

Such large amount of data utilizes the network for 100% until the rebooted node 
comes up again.

That is expected behavior?

- Dietmar
 
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