[Linux-cluster] Help with CMAN
David Teigland
teigland at redhat.com
Mon Jun 26 20:29:00 UTC 2006
On Mon, Jun 26, 2006 at 12:47:38PM -0700, Steven Dake wrote:
> Aneesh,
>
> In the latest code, the membership layer is handled entirely in
> userspace. The CMAN component is a plugin of the openais standards
> based cluster framework. openais uses a protocol called The Totem
> Single Ring Ordering and Membership protocol for all communication.
>
> It would be possible to feed membership messages and regular messages
> from totem into the kernel using configfs or some other system. I
> believe some of this work has already been done. Dave would know more
> since its his area of expertise.
GFS and DLM now both have userland components to interact with
cman/openais clustering infrastructure, see the gfs_controld and
dlm_controld daemons.
Dave
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