Hi Nicolas,

see my reply inline

On Mon, Feb 18, 2019 at 9:51 AM Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Hello,

As fence_idrac has never worked for us, and as fence_ipmilan has worked
nicely since years, we are using fence_ipmilan with the lanplus=1 option
and we're happy with it.

We upgraded to 4.3.0.4 and we're witnessing that we cannot fence our
hosts anymore :

2019-02-18 09:42:08,678+01 ERROR
[org.ovirt.engine.core.bll.pm.FenceProxyLocator] (default task-11)
[2f78ed99-6703-4d92-b7cb-948c2d24b623] Can not run fence action on host
'xxxxx', no suitable proxy host was found.

This is not related fence_ipmi issue below. Engine, is order to be able to execute fencing operation, needs at least one other hosts in Up status, which is used as a proxy host to perform fencing operation. So do you have at least one host in Up status in the same cluster/datacenter as the host you want to run fencing operation on?

If so, then please enable debug information to find out why we cannot find any host acting as fence proxy:

1. Please download log-control.sh script from https://github.com/oVirt/ovirt-engine/tree/master/contrib#log-control-sh and save on engine machine
2. Please execute following on engine machine
      log-control.sh org.ovirt.engine.core.bll.pm DEBUG
3. Go to the problematic host, click Edit, go to Power Management tab, click on the existing fence agent and click on Test button
4. Take a look at engine.log, there should be logged information, why we were not able to find out fence proxy


and on the SPM :

fence_ipmilan: Failed: Unable to obtain correct plug status or plug is
not available

Could you please provide debug output of below command?

ipmitool -vv -I lanplus -H <IPMI_INTERFACE_IP> -p 623 -U <IPMI_USERNAME> -P <IPMI_PASSWORD> -L ADMINISTRATOR chassis power status

Above is the command which fence_ipmi is internally executing, and -vv adds debugging output which can reveal issue with the plug status

Regards,
Martin


I found the suggested workaround here :

https://access.redhat.com/solutions/3349841

but no combination of
- lanplus={0,1}
- -z
- ssl=={0,1}

lead to no solution.

The package version is the same as what's described in the KB :
fence-agents-rhevm-4.2.1-11.el7_6.7.x86_64

What should I test now?

Thank you.

--
Nicolas ECARNOT
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--
Martin Perina
Associate Manager, Software Engineering
Red Hat Czech s.r.o.