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I am sorry.
For simulating an host crash I used a wrong procedure.
Using  "echo 'c' > /proc/sysrq-trigger" all work fine

Il giorno gio 11 lug 2019 alle ore 11:01 Ignazio Cassano <
ignaziocassano at gmail.com> ha scritto:

> Hello All,
> on ocata when I  poweroff a node with active instance , doing a nova
> host-evacuate works  fine
> and instances are restartd on an active node.
> On queens it does non evacuate instances but nova-api reports for each
> instance the following:
>
> 2019-07-11 10:19:54.745 13811 INFO nova.api.openstack.wsgi
> [req-daad0a7d-87ce-41bf-b096-a70fc306db5c 0c7a2d6006614fe2b3e81e47377dd2a9
> c26f8d35f85547c4add392a221af1aab - default default] HTTP exception thrown:
> Cannot 'evacuate' instance e8485a5e-3623-4184-bcce-cafd56fa60b3 while it is
> in task_state powering-off
>
> So it poweroff all instance on the failed node but does not start them on
> active nodes
>
> What is changed ?
> Ignazio
>
>
>
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