[Swift-devel] Re: coaster features

[Mihael Hategan]

On Thu, 2009-05-14 at 11:36 -0500, Zhao Zhang wrote:
> >
> > I'm not sure how you know it's working if you don't know what it's
> > supposed to do.
> >   
> Yes, there is a test case in Ben's test suite using the 
> coasterInternalIP variable. Things I know is that the test returned 
> successful.

Did you try to remove that parameter and see if there is a difference?

> > Without this, workers use the external IP (the one the service is
> > started with) to contact the service. With it, one can force the workers
> > to contact a specific IP after starting. This is needed if the worker
> > nodes don't generally have access to the outside of the cluster.
> >
> > This has nothing to do with notification or status files. If this
> > setting is required (due to the network configuration of the cluster)
> > and it is not specified, the coasters won't work at all.
> >
> >   
> >> 4) coasterDataProvider
> >>     This is working now.
> >>     
> >
> > I don't know what that is.
> >   
> This is the "<filesystem provider="coaster" url="gt2://grid.myhost.org" 
> />" from http://www.ci.uchicago.edu/swift/guides/userguide/coasters.php.

Right. The coaster fs provider. Glen found some data corruption with it
when transferring files larger than a few KB. So it's only somewhat
working.