[Pacemaker] Trouble getting fence_apc working on RHEL 6.1

Andrew Beekhof andrew at beekhof.net
Tue Jul 19 00:02:23 UTC 2011


On Tue, Jul 19, 2011 at 9:42 AM, Digimer <linux at alteeve.com> wrote:
> On 07/18/2011 07:26 PM, Andrew Beekhof wrote:
>> On Mon, Jul 18, 2011 at 7:07 AM, Uwe Grawert <grawert at b1-systems.de> wrote:
>>> Am 17.07.11 22:49, schrieb Digimer:
>>>> On 07/17/2011 04:36 PM, Uwe Grawert wrote:
>>>>> Am 17.07.11 20:32, schrieb Digimer:
>>>>>> I've been trying to get my APC switched PDU working with Pacemaker using
>>>>>> Red Hat's fence_apc fence agent. The agent itself works fine. I can
>>>>>> fence nodes using:
>>>>>>
>>>>>> fence_na -a 192.168.1.6 -l apc -p secret -n 1 -o reboot
>>>>>>
>>>>>> When I try to fence using CRM though, I get these two errors:
>>>>>>
>>>>>> st_output="Parse error: Ignoring unknown option
>>>>>> 'nodename=an-node02.alteeve.com'#012Failed: Unable to obtain correct
>>>>>> plug status or plug is not available#012"
>>>>>>
>>>>>> The configuration is:
>>>>>>
>>>>>> # crm configure show
>>>>>> node an-node01.alteeve.com \
>>>>>>     attributes standby="off"
>>>>>> node an-node02.alteeve.com \
>>>>>>     attributes standby="off"
>>>>>> primitive apc-fencing stonith:fence_apc \
>>>>>>     params \
>>>>>>     pcmk_host_map="an-node01.alteeve.com:1,an-node02.alteeve.com:2" \
>>>>>>     pcmk_host_list="an-node01.alteeve.com an-node02.alteeve.com" \
>>>>>>     pcmk_host_check="static-list" \
>>>>>>     ipaddr="192.168.1.6" \
>>>>>>     action="reboot" \
>>>>>>     login="apc" \
>>>>>>     passwd="secret" \
>>>>>>     port="TBA" \
>>>>>>     property $id="cib-bootstrap-options" \
>>>>>>     dc-version="1.1.5-5.el6-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \
>>>>>>     cluster-infrastructure="openais" \
>>>>>>     expected-quorum-votes="2" \
>>>>>>     stonith-enabled="true"
>>>>>>
>>>>>> The full log file and the 'pe-warn' file are quite long and would wrap
>>>>>> badly in email. So I've put them up here:
>>>>>>
>>>>>> http://wiki.alteeve.com/index.php/CRM_troubles
>>>>>>
>>>>>> Any idea what magic I am missing? :)
>>>>>
>>>>> Pacemaker is adding following parameters: option, nodename, port,
>>>>> additionally to the ones you have configured. The nodename parameter is
>>>>> not the problem, it is ignored. But you have a port parameter defined:
>>>>> port="TBA". That one is getting overwritten with the node's name to
>>>>> fence. I had the same issue with fence_bladecenter agent and had to
>>>>> patch it.
>>>>>
>>>>> I wrote an email to this list a month ago. Subject: "Pacemaker
>>>>> additional parameters on stonith plugins"
>>>>>
>>>>> But there was no big fuzz ;)
>>>>
>>>> As I understood it, the:
>>>>
>>>> pcmk_host_map="an-node01.alteeve.com:1,an-node02.alteeve.com:2"
>>>>
>>>> was supposed to provide the name -> port mapping when port="TBA" is
>>>> used... Did you get a config working?
>>>
>>> I used a different fencing agent. But the problem is, that your
>>> configuration of the port parameter port="TBA" will be overwritten and
>>> endup looking like this: port="an-node02.alteeve.com". And that will
>>> break the fence agent.
>>
>> Mostly right. The pcmk_host_map argument _should_ mean port is set to an int.
>> If not its a bug.  port=TBA is only to shut the shell up.
>
> Any feedback on what might be wrong with my config? :)

Configs look fine, but the logs don't go back far enough.
I need to see the device being added to stonith-ng.




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