Hi,

The idea with the HA self-hosted engine is that it is able to migrate to 
another host, should it be required. Therefore in order to run the engine as 
“highly available”, you will need at least two Hosted Engine Hosts in your 
setup. One, however, is enough to host the engine, but you will lose the 
ability to migrate the engine to another server, if you need to maintain the 
Hosted Engine Host.

//Mike

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
dhy...@sina.com
Sent: 8. april 2018 08:47
To: Alex K <rightkickt...@gmail.com>; FERNANDO FREDIANI 
<fernando.fredi...@upx.com>
Cc: users <users@ovirt.org>
Subject: [ovirt-users] 回复:Re: ovirt engine HA

Hi, I hava two node, and deploy hosted-engine by #hosted-engine --deploy, I do 
not understand what should I do?

----- 原始邮件 -----
发件人:Alex K <rightkickt...@gmail.com>
收件人:FERNANDO FREDIANI <fernando.fredi...@upx.com>
抄送人:users <users@ovirt.org>
主题:Re: [ovirt-users] ovirt engine HA
日期:2018年04月04日 01点40分

In case you need HA for the engine you need to deploy it to other hosts also 
through the GUI.

On Tue, Apr 3, 2018 at 4:47 PM, FERNANDO FREDIANI 
<fernando.fredi...@upx.com<mailto:fernando.fredi...@upx.com>> wrote:
Is it enough to deploy the Self-Hosted engine in just one Host of the cluster 
or is it necessary to repeat the process in each of the nodes that must be able 
to run it ?
Thanks
Fernando

2018-04-03 2:01 GMT-03:00 Vincent Royer 
<vinc...@epicenergy.ca<mailto:vinc...@epicenergy.ca>>:
Same thing, the engine in this case is "self-hosted", as in, it runs in a VM 
hosted on the cluster that it is managing.  I am a beginner here, but from my 
understanding, each node is always checking on the health of the engine VM.  If 
the engine is missing (ie, the host running it has gone down), then another 
available, healthy host will spawn up the engine and you will regain access.

In my experience this has worked very reliably.  I have 2 hosts, both are 
"able" to run the engine VM.  If I take one host down, I am not able to load 
the engine GUI.  But if I wait a few minutes, then I regain access, and see 
that the engine is now running on the remaining healthy host.

Vincent Royer
778-825-1057<tel:(778)%20825-1057>

[Image removed by sender.]
<http://www.epicenergy.ca/>
SUSTAINABLE MOBILE ENERGY SOLUTIONS




On Mon, Apr 2, 2018 at 6:07 PM, <dhy...@sina.com<mailto:dhy...@sina.com>> wrote:
what different between self-hosted engine and  hosted engine? I find a project
ovirt-hosted-engine-ha<https://github.com/oVirt/ovirt-hosted-engine-ha>  
https://github.com/oVirt/ovirt-hosted-engine-ha
----- 原始邮件 -----
发件人:Vincent Royer <vinc...@epicenergy.ca<mailto:vinc...@epicenergy.ca>>
收件人:dhy...@sina.com<mailto:dhy...@sina.com>
抄送人:users <users@ovirt.org<mailto:users@ovirt.org>>
主题:Re: [ovirt-users] ovirt engine HA
日期:2018年04月03日 08点57分

If your node running self-hosted engine crashes, the hosted engine will be 
started up on another node. It just takes a few minutes for this all to happen, 
but it works reliably in my experience.



On Mon, Apr 2, 2018 at 5:42 PM, <dhy...@sina.com<mailto:dhy...@sina.com>> wrote:
How to solute ovirt engine HA, I have a three node cluster, one of is deploy 
engine and node , others are node, if node that deplay engine and  node crash, 
How to ensure my server is up?
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