[Users] Power Management question
--=_6b64648d-a388-4684-810e-c55884b4d006 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Howdy all, we're testing ovirt at the moment, and trying to get power management working for the dell PE1950's we're using as the hypervisors... in RHEV3 beta, we used to use the console IP, U&P and type "ilo3" to monitor power states etc.. in the ovirt manager, trying to set the same config up - it says Test Failed (unknown error). and in the engine.log it shows 2012-02-02 02:34:09,385 ERROR [org.ovirt.engine.core.bll.FencingExecutor] (http--0.0.0.0-8080-2) Failed to run Power Management command on Host , no running proxy Host was found. Any ideas? Cheers Spyro --=_6b64648d-a388-4684-810e-c55884b4d006 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: tahoma,new york,times,serif; font-size: 12pt; color: #000000'>Howdy all, <br><br>we're testing ovirt at the moment, and trying to get power management working for the dell PE1950's we're using as the hypervisors...<br>in RHEV3 beta, we used to use the console IP, U&P and type "ilo3" to monitor power states etc..<br><br>in the ovirt manager, trying to set the same config up - it says <br><div class="GFBBYDSCMYB" style="overflow: auto; position: relative;"><div style="position: relative;"><div class="gwt-Label">Test Failed (unknown error).<br><br>and in the engine.log it shows<br></div></div></div><span class="Object" id="OBJ_PREFIX_DWT8483_com_zimbra_date">2012-02-02</span> 02:34:09,385 ERROR [org.ovirt.engine.core.bll.FencingExecutor] (http--0.0.0.0-8080-2) Failed to run Power Management command on Host , no running proxy Host was found.<br><br>Any ideas?<br><br>Cheers<br>Spyro<br></div></body></html> --=_6b64648d-a388-4684-810e-c55884b4d006--
On 02/01/2012 09:53 PM, Spyro Polymiadis wrote:
Howdy all,
we're testing ovirt at the moment, and trying to get power management working for the dell PE1950's we're using as the hypervisors... in RHEV3 beta, we used to use the console IP, U&P and type "ilo3" to monitor power states etc..
in the ovirt manager, trying to set the same config up - it says Test Failed (unknown error).
and in the engine.log it shows 2012-02-02 02:34:09,385 ERROR [org.ovirt.engine.core.bll.FencingExecutor] (http--0.0.0.0-8080-2) Failed to run Power Management command on Host , no running proxy Host was found.
Just a stab in the dark here... how many hypervisor nodes are running in the same cluster? The way fencing works (iirc) is if you want to fence HostA, you need to have a separate HostB running so that HostB can issue the fence command to HostA. So if there's just a single node running, there's no one else to proxy the fencing command to that host. I don't think the oVirt Engine server ever directly fences hosts, it just tells a remote vdsm to do it on its behalf.
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management.. ----- Original Message ----- From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, 2 February, 2012 1:34:18 PM Subject: Re: [Users] Power Management question On 02/01/2012 09:53 PM, Spyro Polymiadis wrote:
Howdy all,
we're testing ovirt at the moment, and trying to get power management working for the dell PE1950's we're using as the hypervisors... in RHEV3 beta, we used to use the console IP, U&P and type "ilo3" to monitor power states etc..
in the ovirt manager, trying to set the same config up - it says Test Failed (unknown error).
and in the engine.log it shows 2012-02-02 02:34:09,385 ERROR [org.ovirt.engine.core.bll.FencingExecutor] (http--0.0.0.0-8080-2) Failed to run Power Management command on Host , no running proxy Host was found.
Just a stab in the dark here... how many hypervisor nodes are running in the same cluster? The way fencing works (iirc) is if you want to fence HostA, you need to have a separate HostB running so that HostB can issue the fence command to HostA. So if there's just a single node running, there's no one else to proxy the fencing command to that host. I don't think the oVirt Engine server ever directly fences hosts, it just tells a remote vdsm to do it on its behalf.
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better Try moving a 2nd host over and see if that resolves the issue
Hi, Yes, the ovirt backend does not shut down or power up any hosts directly, it can work only through vdsm. Therefore you need one running host per datacenter to be able to manage the rest of the hosts. I understand the motivation, but for smaller installations I believe it would be so great if the backend could do it as well. What vdsm does in the background is not much more than calling the ipmipower command. Laszlo ----- Original Message -----
From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, February 2, 2012 4:16:12 AM Subject: Re: [Users] Power Management question
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better
Try moving a 2nd host over and see if that resolves the issue _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
On 02/02/12 10:57, Laszlo Hornyak wrote:
Hi,
Yes, the ovirt backend does not shut down or power up any hosts directly, it can work only through vdsm. Therefore you need one running host per datacenter to be able to manage the rest of the hosts.
I understand the motivation, but for smaller installations I believe it would be so great if the backend could do it as well. What vdsm does in the background is not much more than calling the ipmipower command.
I agree, there is no real reason not to fence hosts from the management host, yet another feature we would love to have. Worth checking if the engine can reuse the vdsm code for fencing.
Laszlo
----- Original Message -----
From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, February 2, 2012 4:16:12 AM Subject: Re: [Users] Power Management question
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better
Try moving a 2nd host over and see if that resolves the issue _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
----- Original Message -----
On 02/02/12 10:57, Laszlo Hornyak wrote:
Hi,
Yes, the ovirt backend does not shut down or power up any hosts directly, it can work only through vdsm. Therefore you need one running host per datacenter to be able to manage the rest of the hosts.
I understand the motivation, but for smaller installations I believe it would be so great if the backend could do it as well. What vdsm does in the background is not much more than calling the ipmipower command.
I agree, there is no real reason not to fence hosts from the management host, yet another feature we would love to have.
Worth checking if the engine can reuse the vdsm code for fencing.
This would come for free once we have the all in one (vdsm running on the same host as engine).
Laszlo
----- Original Message -----
From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, February 2, 2012 4:16:12 AM Subject: Re: [Users] Power Management question
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better
Try moving a 2nd host over and see if that resolves the issue _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
On 02/02/12 13:41, Ayal Baron wrote:
----- Original Message -----
On 02/02/12 10:57, Laszlo Hornyak wrote:
Hi,
Yes, the ovirt backend does not shut down or power up any hosts directly, it can work only through vdsm. Therefore you need one running host per datacenter to be able to manage the rest of the hosts.
I understand the motivation, but for smaller installations I believe it would be so great if the backend could do it as well. What vdsm does in the background is not much more than calling the ipmipower command.
I agree, there is no real reason not to fence hosts from the management host, yet another feature we would love to have.
Worth checking if the engine can reuse the vdsm code for fencing.
This would come for free once we have the all in one (vdsm running on the same host as engine).
We'll get it for 'free' when installing VDSM on the same host as the engine, but the above can be useful even if the user don't install VDSM on the engine machine.
Laszlo
----- Original Message -----
From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, February 2, 2012 4:16:12 AM Subject: Re: [Users] Power Management question
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better
Try moving a 2nd host over and see if that resolves the issue _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
----- Original Message -----
On 02/02/12 13:41, Ayal Baron wrote:
----- Original Message -----
On 02/02/12 10:57, Laszlo Hornyak wrote:
Hi,
Yes, the ovirt backend does not shut down or power up any hosts directly, it can work only through vdsm. Therefore you need one running host per datacenter to be able to manage the rest of the hosts.
I understand the motivation, but for smaller installations I believe it would be so great if the backend could do it as well. What vdsm does in the background is not much more than calling the ipmipower command.
I agree, there is no real reason not to fence hosts from the management host, yet another feature we would love to have.
Worth checking if the engine can reuse the vdsm code for fencing.
This would come for free once we have the all in one (vdsm running on the same host as engine).
We'll get it for 'free' when installing VDSM on the same host as the engine, but the above can be useful even if the user don't install VDSM on the engine machine.
I was suggesting that vdsm always be installed on the same host as there are other such services that the engine could benefit from...
Laszlo
----- Original Message -----
From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, February 2, 2012 4:16:12 AM Subject: Re: [Users] Power Management question
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better
Try moving a 2nd host over and see if that resolves the issue _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
----- Original Message -----
From: "Ayal Baron" <abaron@redhat.com> To: "Livnat Peer" <lpeer@redhat.com> Cc: users@ovirt.org, "Laszlo Hornyak" <lhornyak@redhat.com> Sent: Thursday, February 2, 2012 12:54:22 PM Subject: Re: [Users] Power Management question
----- Original Message -----
On 02/02/12 13:41, Ayal Baron wrote:
----- Original Message -----
On 02/02/12 10:57, Laszlo Hornyak wrote:
Hi,
Yes, the ovirt backend does not shut down or power up any hosts directly, it can work only through vdsm. Therefore you need one running host per datacenter to be able to manage the rest of the hosts.
I understand the motivation, but for smaller installations I believe it would be so great if the backend could do it as well. What vdsm does in the background is not much more than calling the ipmipower command.
I agree, there is no real reason not to fence hosts from the management host, yet another feature we would love to have.
Worth checking if the engine can reuse the vdsm code for fencing.
This would come for free once we have the all in one (vdsm running on the same host as engine).
We'll get it for 'free' when installing VDSM on the same host as the engine, but the above can be useful even if the user don't install VDSM on the engine machine.
I was suggesting that vdsm always be installed on the same host as there are other such services that the engine could benefit from...
Yeah, that may be an easy solution, we could just use the vdsClient to run commands in local, but that would also bring all of vdsm's dependencies, like libvirt to the engine node. Or maybe the fence-agents package could be enough?
Laszlo
----- Original Message -----
From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, February 2, 2012 4:16:12 AM Subject: Re: [Users] Power Management question
On 02/01/2012 10:13 PM, Spyro Polymiadis wrote: > so, if i read that right - does this mean that i need to have > 2 > nodes > in the cluster to get this working (thats the only difference > from > the rhev environment) i havent moved the other hypervisors > into > it > yet... i figured the manager host could perform the power > management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better
Try moving a 2nd host over and see if that resolves the issue _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
perfect - confirmed that adding the 2nd host to the cluster enabled me to configure the power management options :) thanks a bunch ----- Original Message ----- From: "Perry Myers" <pmyers@redhat.com> To: "Spyro Polymiadis" <spyro@rsp.com.au> Cc: users@ovirt.org Sent: Thursday, 2 February, 2012 1:46:12 PM Subject: Re: [Users] Power Management question On 02/01/2012 10:13 PM, Spyro Polymiadis wrote:
so, if i read that right - does this mean that i need to have 2 nodes in the cluster to get this working (thats the only difference from the rhev environment) i havent moved the other hypervisors into it yet... i figured the manager host could perform the power management..
That's my understanding, but I could be wrong :) The vdsm/oVirt Engine folks would know better Try moving a 2nd host over and see if that resolves the issue
participants (5)
-
Ayal Baron -
Laszlo Hornyak -
Livnat Peer -
Perry Myers -
Spyro Polymiadis