[Beowulf] open mosix alternative

Jon Aquilina eagles051387 at gmail.com
Mon Jul 7 22:49:50 PDT 2008


cant that be used in conjunction wiht other packages taht will power down a
node which fails?

On Fri, Jul 4, 2008 at 10:39 AM, Kenneth Duncan Strouts <
K.D.Strouts at sms.ed.ac.uk> wrote:

> Hi Jon,
>
>
> Quoting Tony Travis <ajt at rri.sari.ac.uk>:
>> Although Kerrighed looks very promising, it is also quite fragile in our
>> hands. If one node crashes, you lose the entire cluster. That said, the
>> Kerrighed project is extremely well supported and I believe it will be a
>> good alternative in the near future.
>>
>
>
> We found that with Kerrighed, one node crashing sees the whole cluster go
> down.  The following is output to kern.log before the cluster dies.
>
> Jul  2 13:57:03 nodeC at kghed kernel: TIPC: Resetting link
> <1.1.2:eth1-1.1.3:eth1>, peer not responding
> Jul  2 13:57:03 nodeC at kghed kernel: TIPC: Lost link
> <1.1.2:eth1-1.1.3:eth1> on network plane B
> Jul  2 13:57:03 nodeC at kghed kernel: TIPC: Lost contact with <1.1.3>
>
> From the Kerrighed mailing list (Louis Rilling);
>
> "Indeed, Kerrighed does not tolerate node failures yet. We have no precise
> date
> for this, and giving a date right now would be meaningless. The first step
> for
> us is to support dynamic cluster resizing (IOW live node additions and
> removals), and we've just started working on it. We will work on node
> failures in a second step."
>
> It seems they are working on this, and on a new framework for configurable
> process scheduling.  Probably Kerrighed will provide a good alternative in
> future.
>
> Kenneth
>
>
>
> --
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> Scotland, with registration number SC005336.
>
>
>
>
>
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-- 
Jonathan Aquilina
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