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Re: [Linux-cluster] DLM Book updated



Alain RICHARD wrote:

Le 9 juin 08 à 11:21, Christine Caulfield a écrit :

I have updated the "Programming Locking Applications" document. Lots of typos and bizarre sentences have been fixed (thanks Bob!). I have also added a new section (chapter 5) which is an overview of the DLM internals for those that want to understand a little of how and where locks are mastered etc.

It's no substitute for reading the code but it might make it a little easier :)

http://people.redhat.com/ccaulfie/docs/rhdlmbook.pdf

Chrissie

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You mention in this document that dlm is able to use SCTP, but I found no information on how to do it, is there any documents about it ?


It's not (well) tested so it's regarded as unsupported at the moment. If you want to test it you'll need to add this to cluster.conf (inside the <cluster> tags:

<dlm protocol="sctp"/>

and the following sysctls to keep SCTP itself happy"

# echo 4194304 > /proc/sys/net/core/rmem_default
# echo 4194304 > /proc/sys/net/core/rmem_max


Chrissie


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