[Pacemaker] Trouble getting fence_apc working on RHEL 6.1

Digimer linux at alteeve.com
Mon Jul 18 23:42:26 UTC 2011


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? :)

-- 
Digimer
E-Mail:              digimer at alteeve.com
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a program that strapped human beings to an explosion and tried to stab
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