sheepdog 0.6 cache and live migration

[mmenaz]

Hi, I'm trying to test sheepdog and see what can do for me, so I'm a newbie on this regard.
I've read that sheepdog cache (so the caching of the node regards the rest of the sheepdog cluster, i.e. like sheep -w object,size=20000 /mnt/sheepdog) gives a big performance boost.
As far as I've been able to decode proxmox sheepdog script, it's not activated, nor is possible to do so using the /etc/default/sheepdog config file.
I ask: is it activation planned?
If so, will the live migration take it into account?
As far as I've understood, with cache there is the need of:
- pause VM with qm monitor command
- collie vdi cache flush test -a target_node
- collie vdi cache delete vdiname
then migrate
Thanks a lot

 

[dietmar]

As far as I've understood, with cache there is the need of:
- pause VM with qm monitor command
- collie vdi cache flush test -a target_node
- collie vdi cache delete vdiname
then migrate

That looks quite unusable to me. Sheepdog should handle that internally instead.