Re: re[2]: Clusterwide pids

[Jordi Polo <mumismo@wanadoo.es>]

> >> The issue, as I mentioned earlier, is when/how does a node get a node
> >> number. The DLCP idea is interesting.  Another option is something in
> >> lilo or ram disk. Specifying it must be in /etc is bad for those of us
> >> with a single root. I like the idea of a "cluster" system call.  One of
> >> the subcommands of it would be set your node number.  Different cluster
> >> implementations could gather that number from different places.
> >
> > even with a single root you're having diferent configurations for
> > every machine (ip, inittab ...) so just add a new file with the
> > node id. If you are managing all the cluster nodes, you can just
> > give every node a different number,
>
> Huh? If you add a new file, it appears everywhere. If you edit
> that file, it changes everywhere. Single root means just that.
> ("root" being the filesystem root, not the user root)

If you are able to give every machine a different IP address , you can as 
well give then a different node number. In the same way , DHCP or whatever. 

> > the problem comes when you just want to connect your laptop to the
> > cluster and you have no idea about what node numbers are being used.
>
> You can't do that really, and you wouldn't want to. This type of
> cluster appears to be a single machine.

Some of the people here really seems to want that.

Linux-cluster: generic cluster infrastructure for Linux
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