On Tue, Oct 2, 2018 at 4:16 PM Artem Tambovskiy <artem.tambovs...@gmail.com>
wrote:

> Hi,
>
> Just run into the issue during cluster upgrade from 4.24 to 4.2.6.1. I'm
> running small cluster with 2 hosts and gluster storage. Once I upgraded one
> of the hosts to 4.2.6.1 something went wrong (looks like it tried to start
> HE instance) and I can't connect to hosted-engine any longer.
>
> As I can see HostedEngine is still running on the second host (and another
> yet 7 VM's) , but I can't stop it.
> ovirt-ha-agent and ovirt-ha-broker are failing to start. hosted-engine
> --vm-status gives nothing but error message
> "The hosted engine configuration has not been retrieved from shared
> storage. Please ensure that ovirt-ha-agent is running and the storage
> server is reachable."
>

Is the storage available? Check gluster volume status <volumename> and
gluster volume heal <volumename> info (replace <volumename> with name of
the gluster volume hosting your HE disk.
You mention cluster with 2 hosts - replica 2? You're likely to run into
split brain scenarios.

>
> ps -ef shows plenty of vdsm processes in defunc state thats probably the
> reason why agent and brocker can't start. Just wondering that is the good
> way to start problem resolution here to minimize downtime for running VM's?
>
> Restart vdsm and try again restarting agent and broker or just reboot the
> whole host?
>

If storage is available , try restarting the vdsm, agent and broker services


> Regards,
> Artem
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