Ovirt is Hosted Engine and version 4.2 installed a week ago.
OS is Centos7.4 on hosted engine and hosts

Peter Harman – Systems and Safety Cordinator  | Homeyer Precision Manufacturing

[Description: C:\Users\gruether\AppData\Local\Temp\Temp1_Homeyer Logo 
(2).zip\Homeyer Logo\Homeyer Logo.jpg]

16051 State Hwy 47, Marthasville, MO 63357| E [email protected] 
|<mailto:[email protected]%20%7C> P 636.433.2244 | F 636.433.5257

From: Nir Soffer <[email protected]>
Sent: Thursday, May 24, 2018 3:39 PM
To: Peter Harman <[email protected]>; Yedidyah Bar David <[email protected]>
Cc: [email protected]; Daniel Erez <[email protected]>
Subject: Re: [ovirt-users] Upload Image Error

On Thu, May 24, 2018 at 10:57 PM Peter Harman 
<[email protected]<mailto:[email protected]>> wrote:
Ovirt Users,

What version are you running?


I am running into a strange problem with uploading images through the webUI. 
When I test the connection on an upload I get “Connection to 
ovirt-imageio-proxy service has failed. Make sure the service is installed, 
configured, and ovirt-engine certificate is registered as a valid CA in the 
browser.” I have conducted this operation on several computers using both 
chrome and firefox and ensuring the certs were loaded into the browsers.

Are you sure you import the certificate correctly info the browser?


I went to this page: 
https://ovirt.org/develop/release-management/features/infra/pki/ to find cert 
info and checked both the engine and hosts for the certificates and the 
identity of the certificates – everything seemed to match up.

This issue means that the browser refuse to communicate
with the proxy because the proxy certificate does not match
the browser certificates.

Is it possible that you changed engine fqdn and regenerated
engine certificates?

Didi, how can we regenerate all certificates to make sure everything
is configured correctly?

Or verify that the certificates in a host are correct?

Next thing I looked at was the ovirt-imageio-proxy service. I checked it and 
restarted it below is a status output from one of the failed operations:

[root@hpm-engine ~]# systemctl status ovirt-imageio-proxy
● ovirt-imageio-proxy.service - oVirt ImageIO Proxy
   Loaded: loaded (/usr/lib/systemd/system/ovirt-imageio-proxy.service; 
enabled; vendor preset: disabled)
   Active: active (running) since Thu 2018-05-24 13:25:38 CDT; 1h 13min ago
Main PID: 21239 (ovirt-imageio-p)
    Tasks: 2
   CGroup: /system.slice/ovirt-imageio-proxy.service
           └─21239 /usr/bin/python /usr/bin/ovirt-imageio-proxy

May 24 13:25:38 hpm-engine.server.local systemd[1]: Starting oVirt ImageIO 
Proxy...
May 24 13:25:38 hpm-engine.server.local systemd[1]: Started oVirt ImageIO Proxy.
May 24 14:38:02 hpm-engine.server.local ovirt-imageio-proxy[21239]: 127.0.0.1 - 
- [24/May/2018 14:38:02] "PUT /tickets/ HTTP/1.1" 200 0

This means proxy is running, and engine is able to communicate
with it. Unfortunately, this does not mean that the browser is able to
communicate with the proxy.

ovirt-imageio-proxy service seems to check out. So, next step was checking out 
VDSM process output is below (NOTE: I redacted a bunch of unrelated warnings):
...
Vdsm is not related to proxy connection errors.

Did you know that you can upload using the SDK? It is also much
faster since you can upload directly to the host, instead of via the proxy.

Here is an example:
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/upload_disk.py

Nir
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