Re: another laundry or shopping list

[Jordi Polo <mumismo@wanadoo.es>]

> >
> > Meaning in CPID terms, that a signal for a cpid would get redirected
> > by the home node, which is obvious from the CPID.
> >
> > That's for process migration.
>
> This is so... wrong. Now you have two nodes that must work OK,
> increasing the chance of failure. You increase network traffic
> and reduce performance.
>
> There are two good ways to do process migration. The first way
> is with SSI. The second is totally userspace. Doesn't Condor
> support this? Obviously the userspace solution has limits, but
> it ought to be the best performing.

I agree we double the chance of fail but this about issues you can't take 
away home node. You need some of the home node syscalls. Think in a 5 nodes 
cluster,all of them connected with his own modem to internet.  2 of them with 
telnet and ftp open, as the processes has that sockets open you need a little 
of it being bound to that node. 
will be all the machines in the cluster have the same time ? maybe you don't 
want it and you want the time of your home node not others.
If you find a way to avoid this (not in userspace) i'll be really happy .  


--
Jordi 
  Student of Spain 

Linux-cluster: generic cluster infrastructure for Linux
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