[ovirt-users] Fencing errors on oVirt Engine Version: 4.0.1

Thu Jul 28 09:08:11 UTC 2016

Hi Peter,

see my inline responses:

On Thu, Jul 28, 2016 at 9:32 AM, Peter Michael Calum <pemca at tdc.dk> wrote:

> Hi Martin
>
>
>
> I see no firewall issues.
>
>
>
> I have made some more tests :
>
>
>
> RHEV  3.6 host khk9dsk30  test to khk9dsk34 & khk9dsk35 - OK
>
> RHEV  3.6 host khk9dsk31  test to khk9dsk34 & khk9dsk35 - OK
>
> RHEV  3.5 host khk9dsk32  test to khk9dsk34 & khk9dsk35 - OK
>
> RHEV  3.5 host khk9dsk33  test to khk9dsk34 & khk9dsk35 – OK
>
> OVIRT 4.01 host
> 
> khk9dsk34  test to khk9dsk34 & khk9dsk35 – FAIL
>
> OVIRT 4.01 host khk9dsk35  test to khk9dsk34 & khk9dsk35 – FAIL
>
OVIRT 4.01 host khk9dsk34  test to khk9dsk30 & khk9dsk31 – FAIL
>

>
> Could you check in the code  that ipmilan sends on port udp 623 ?
>

Yes, this is the default port

>
>
> All hosts are on same VLAN
>
> [root at khk9dsk31 ~]# fence_ipmilan -a khk9dsk35-mgnt.ip.tdk.dk -l mgntuser
> –p xxxxxxxx -o status
>
> Status: ON
>
> [root at khk9dsk31 ~]# fence_ipmilan -a khk9dsk34-mgnt.ip.tdk.dk -l mgntuser
> -p xxxxxxxx -o status
>
> Status: ON
>
> [root at khk9dsk35 ~]# fence_ipmilan -a khk9dsk33-mgnt.ip.tdk.dk -l mgntuser
> -p xxxxxxxx -o status
>
> Failed: Unable to obtain correct plug status or plug is not available
>
>
> [root at khk9dsk35 ~]# fence_ipmilan -a khk9dsk30-mgnt.ip.tdk.dk -l mgntuser
> -p xxxxxxxx -o status
>
> Failed: Unable to obtain correct plug status or plug is not available
>
>
>
> [root at khk9dsk35 ~]# fence_ipmilan -a khk9dsk34-mgnt.ip.tdk.dk -l mgntuser
> -p xxxxxxxx -o status
>
> Failed: Unable to obtain correct plug status or plug is not available
>
>

From the above I can say that there are some networking issues on host 

khk9dsk35, you said that firewall is OK, so are IPMI hostnames resolvable?
Please also try to execute above with '-v' as we may get a bit more info
about the issue.

>
>
> [root@
> 
> khk9dsk35 ~]# fence_ipmilan -a khk9dsk35-mgnt.ip.tdk.dk -l mgntuser -p
> xxxxxxxx -o status
>
> Failed: Unable to obtain correct plug status or plug is not available
>

This is normal, you are usually not able to connect to IPMI port of the
host from the host

Thanks

Martin Perina

Br,
>
> Peter Calum
>
> *Fra:* users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] *På vegne
> af *Peter Michael Calum
> *Sendt:* 27. juli 2016 21:30
> *Til:* Martin Perina <mperina at redhat.com>
> *Cc:* users at ovirt.org
> *Emne:* [Phish] - Re: [ovirt-users] Fencing errors on oVirt Engine
> Version: 4.0.1
>
>
>
> Hi Martin
>
> I was wondering if this could be a firewall problem. We have recently
> introduced new fw rules, and I have not tested fencing on the 2 hypervisors
> before I switched them to ovirt 4, but there was no alarm in the old setup
> before I switched. - I will investigate this further to be sure, and will
> return.
> Thanks for your help
>
> /Peter
>
>
>
>
>
> *Fra:* Martin Perina [mailto:mperina at redhat.com <mperina at redhat.com>]
> *Sendt:* 27. juli 2016 20:19
> *Til:* Peter Michael Calum <pemca at tdc.dk>
> *Cc:* users at ovirt.org; Eli Mesika <emesika at redhat.com>
> *Emne:* Re: [ovirt-users] Fencing errors on oVirt Engine Version: 4.0.1
>
>
>
> Hmm, it's really strange that this is working on 3.6 and not on 4.0, I
> don't see any obvious error, so we need to find out what are correct
> parameters for your fencing device.
>
> The easiest way is to execute fence_ipmilan, according to vdsm.log
> following are your current options:
>
> fence_ipmilan -a khk9dsk35-mgnt.ip.tdk.dk -l mgntuser -p <PASSWORD> -o
> status
>
> Does the above works if it's execute from khk9dsk34-mgnt.ip.tdk.dk? Btw
> is username correct? Shouldn't be there 'mgmtuser'?
>
> If all of above is correct and you are still not able to get power status,
> here are options you could try:
>
> -v
>
> --lanplus
> -4
>
> Martin Perina
>
>
>
> On Wed, Jul 27, 2016 at 5:07 PM, Peter Michael Calum <pemca at tdc.dk> wrote:
>
> Hi,
>
>
>
> Thank you for answering.
>
>
>
> Here is the logs, one from each node.
>
> I see the test from khk9dsk34 goes over khk9dsk35 and vice versa.
>
>
>
> Same setup as on my redhat 3.6 setup, and no custom options.
>
>
>
> Thanks
>
> Peter
>
>
>
>
>
> *Fra:* Martin Perina [mailto:mperina at redhat.com]
> *Sendt:* 27. juli 2016 11:56
> *Til:* Peter Michael Calum <pemca at tdc.dk>
> *Cc:* users at ovirt.org; Eli Mesika <emesika at redhat.com>
> *Emne:* Re: [ovirt-users] Fencing errors on oVirt Engine Version: 4.0.1
>
>
>
> Hi Peter,
>
> could you please share with us vdsm.log from the host that was used as
> fence proxy (the one that actually executed fence_ipmi agent)?
>
> Also could you please check that fence agent options are the same as on
> 3.6 setup? Do you any any custom options for this specific agent?
>
> Thanks
>
> Martin
>
>
>
> On Wed, Jul 27, 2016 at 8:34 AM, Peter Michael Calum <pemca at tdc.dk> wrote:
>
> Hi
>
> I’m testing on Ovirt 4.01 and got errors when testing fencing on the hosts
>
> I use IBM x3550M4 as host and ipmilan as fence agent.
>
>
>
> I get this error when testing.
>
>  [Failed: Unable to obtain correct plug status or plug is not available, ,
> ]
>
>
>
> I also have a 3.6 setup and there it works.
>
>
>
> Ovirt Node 4.02
>
> oVirt Engine Version: 4.0.1.1-1.el7.centos
>
>
>
> Is this list the correct way to report errors ?
>
>
>
> Venlig hilsen / Kind regards
>
> Peter Calum
>
> TDC, Denmark
>
>
>
>
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