HA for containers, kinda, shower thought.

[James Crook]

So shower thought...

If I had a 3 node cluster with ZFS and live migration of one virtual machine between nodes, and in the virtual machine i had containers running.
I could (in theory) live migrate the virtual machine (with containers running on it) to another node and the containers would still be live and able to respond to requests while the live migration was happening ?

 

[wolfgang]

Hi,

There is no Container Live migration.
If you mean you migrate a KVM VM than yes you can live migrate and the VM stay online.
But if you use ZFS you need to use the command line with "-with-local-disks".
Also, you will lose about 2 packages because your switches have to switch the traffic to the other node.
The zfs replication is not compatible with live migration.

 

[James Crook]

Hi,

There is no Container Live migration.
If you mean you migrate a KVM VM than yes you can live migrate and the VM stay online.
But if you use ZFS you need to use the command line with "-with-local-disks".
Also, you will lose about 2 packages because your switches have to switch the traffic to the other node.
The zfs replication is not compatible with live migration.

Yes, sorry i meant a KVM VM with containers inside it. I forgot ZFS wasn't an option.
Hmmmm i feel a project coming on.......