Strange..now it's working :? I've added successfully a fourth server to the cluster without touching anything, a part migrating the HE vm to another host.

But now it seems that 2 of the hosts are not recognized as working. When I try to migrate the HostedEngine to another machine I get:

The host hosted_engine_1 did not satisfy internal filter HA because it is not a Hosted Engine host.
The host hosted_engine_3 did not satisfy internal filter HA because it is not a Hosted Engine host.

hosted_engine_2 is in maintanaince mode right now and 4 is the one that is running the VM. The VM was first migrated from 1 to 2, then from 2 it started giving those errors, then I successfully added 4 and I could migrate the VM to it, and now it is stuck there.

I'm trying to look through the VDMS logs but oh boy, they are so verbose!

2016-09-15 15:11 GMT+02:00 Davide Ferrari <davide@billymob.com>:

Hello again

as I said I'm a beginner with OVirt and I was playing with a proof-of-concept cluster with OVirt 4.0 + GlusterFS 3.8, following this guide

http://www.ovirt.org/blog/2016/03/up-and-running-with-ovirt-3-6/

(it works smoothly with 4.0 too)
I've created the cluster and the engine is running as an higly available VM in the cluster itself with hosted-engine --deploy but now I want to add a fourth machine to the cluster but I get this error:

Cannot automatically add the host to cluster Default: Cannot add Host. There is no available server in the cluster to probe the new server.

both if I try to add an host from Ovirt AAdmin GUI or if I try to run "hosted-engine --deploy" on the new machine. Is it possible to have this cluster conf (with the engine running as a VM) with 4 or more machines? What thing should I have to do?

Thanks in advance

--
Davide Ferrari
Senior Systems Engineer

Davide Ferrari

Senior Systems Engineer