[Linux-cluster] Fencing deadlock under Cluster Suite v4, how to solve?

Riaan van Niekerk riaan at obsidian.co.za
Fri Sep 29 13:41:51 UTC 2006

qdisk is part of newersions of cman. "man qdisk" is the best source of 
information (that I am aware of) for the new quorum disk functionality.

Unfortunately the Cluster Suite docs have not been updated with the 
qdisk subsystem. However, the CS update 4 release notes mention it.


slighly off topic rant: unfortunately it is very difficult to tell when 
Red Hat update their documentation. At the above link, there is a red 
"(Updated)" if something is updated recently, but "recently" is a very 
vague term. I have even submitted Bugzilla Bug 195890: RFE "(Updated)" 
and "(New)" labels in documentation should have dates without success.


Celso K. Webber wrote:
> Hello David,
> Do you know (or someone else) where can I find documentation about the
> new qdisk mechanism?
> I imagine I should configure it by editing cluster.conf directly, isn't
> it? The GUI does not mantion the "shared state" configuration as it did
> under Cluster Suite v3.
> Thank you all.
> Celso.
> David Teigland escreveu:
>> On Thu, Sep 28, 2006 at 01:36:30AM -0300, Celso K. Webber wrote:
>>> Question: does someone is aware of a solution for this? Is there a 
>>> way a server can notify the other that it is removing it from the 
>>> cluster? Maybe using a shared disk? By the way, I didn't experimented 
>>> with the new shared disk feature under CS v4, only with CS v3.
>> The new qdisk should be a good way to solve this.
>> Dave
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