[Openais] CKPT: bug, global_ckpt_id not synced

Steven Dake sdake at redhat.com
Mon Sep 11 12:24:14 PDT 2006


Great idea!

Let me think about what kind of code changes this would be required.

I am a little stuck in my current method.

Regards
-steve

On Mon, 2006-09-11 at 10:20 +0200, Hans Feldt wrote:
> What if you changed the checkpoint ID from beeing global for all 
> checkpoints into a per checkpoint instance ID?
> 
> I mean ckpt "ckpt1" gets ID 1, unlink it, create "ckpt1" it gets ID 2 
> and so on. With a 32bit ID you could have 2^32 unlinked checkpoints...
> 
> Regards,
> Hans
> 
> Steven Dake wrote:
> > Hans,
> > 
> > I am also working on this particular problem, although "max" is not
> > sufficient sine it is possible for checkpoint ids to wrap.  Ideally the
> > checkpoint ids would wrap with a proper action.
> > 
> > I don't know if it is realistic for a checkpoint id to wrap, but I'd
> > like it to work if this were to happen after 1-2 years of runtime in
> > heavy checkpoint create/unlink environments.
> > 
> > Regards
> > -steve
> 
> 




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