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List: redhat-linux-cluster
Subject: Re: [Linux-cluster] service startup order
From: Digimer <linux () alteeve ! com>
Date: 2011-07-28 11:41:08
Message-ID: 4E314AD4.5010809 () alteeve ! com
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On 07/28/2011 03:34 AM, Ralph.Grothe@itdz-berlin.de wrote:
>
>
>> -----Original Message-----
>> From: linux-cluster-bounces@redhat.com
>> [mailto:linux-cluster-bounces@redhat.com] On Behalf Of Budai
> Laszlo
>> Sent: Thursday, July 28, 2011 9:06 AM
>> To: linux-cluster@redhat.com
>> Subject: Re: [Linux-cluster] service startup order
>>
>> @Ralph: could you please provide me some references where
>> have you found
>> those attributes of the service tag (depend, depend_mode) and
>> for the RM
>> tag (central_processing)? Thank you.
>
> Even Digimer is metioning this attribute in her excellent wiki
>
> http://wiki.alteeve.com/index.php/RHCS_v2_cluster.conf#central_pr
> ocessing
>
>
> If you have a login account at RHN you may find this article in
> their knowledge base
>
> https://access.redhat.com/kb/docs/DOC-26981
>
>
> Apart from that the only text where this attrib was used that I
> have come across so far was an RH doc treating deployment of SAP
> on RHCS
> But it only appears there in a sample config snippet without
> further explanation.
> I guess that they needed to activate it because they were using
> the RHCS event processing interface?
>
> http://www.redhat.com/f/pdf/ha-sap-v1-6-4.pdf
Eek, that cluster.conf article is in a poor shape. As it stands now, it
is little more that a wiki'fied dump of the cluster.ng xmllint file. The
lack of documentation of many options is why there are so many /no info/
entries.
I had planned to bug the devs to get better definitions of the options,
and may still do that someday. However, if working on that article, I
came to realize that Pacemaker is the future of resource management, so
for now, I'm focusing on learning Pacemaker.
As a general note of caution; Though the extra arguments may exist,
unless you find documentation from Red Hat directly on their use, I'd
hesitate to use the options in production. I am unclear on Red Hat's
policy towards maintaining the functionality of those
undocumented/minimally documented attributes. If you have a Red Hat
contract, I'd strongly urge you to speak to your rep about using those
attributes.
--
Digimer
E-Mail: digimer@alteeve.com
Freenode handle: digimer
Papers and Projects: http://alteeve.com
Node Assassin: http://nodeassassin.org
"At what point did we forget that the Space Shuttle was, essentially,
a program that strapped human beings to an explosion and tried to stab
through the sky with fire and math?"
--
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