Re: another laundry or shopping list

[carlos <manaha@wanadoo.es>]

Jordi Polo Wrote:

> I like MOSIX approach also, in fact i think that sometimes is just necesary , 
> but i would migrate more info and let in the home node just the minimum so 
> i'd break the depyty and migrate part of it . So if i have to send a signal i 
> can send it directly to the node where the process is. That implies the need 
> of the cache and all that thing of my last mail but eliminates  the need to 
> send 10 signals 3 lans away when the node is just next to me.
>   
> Another little idea: what about not moving but copying the process and sleep 
> it in the home node and a little heartbeat so if the other node fails you can 
> run again the process in other node.  This obviusly is a higher lever, very 
> optional feature. 

I think it's a good idea to include it as an optional issue in the
kernel. In that way people not only would choose between HA, or HP
cluster. People with slow lans will not choose that behaviour, but may
be many other people will be interested in the reliability of their
process. I like mosix approach but i think there are many systems that
will appreciate this effort. On the other hand , the problem is not as
easy to solve as make a heartbeat and send context and DATA dirty pages,
first of all we should decide things like how to manage the clock of the
system and other things like that.
I`am thinking in that part of code as an optional code in the cluster
system, I do not think a lot of people interested in waste a lots of
resources in that behaviour. 
> --
> Jordi
>   Student of Spain

Carlos

        the other Student of spain

Linux-cluster: generic cluster infrastructure for Linux
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