[ogsa-wg] Re: [gfs-wg] RNS critique (new revision available)

[Manuel Pereira]

Hello Osamu,

> Now, all input to the service becomes a full path. 

Actually it always has been, however it has been presented in such a way 
that describes the use of an absolute path in all cases; this was done in 
an attempt to reduce complexity, potential confusion in a federated 
namespace, and present a consistent globally unique identifier for all 
namespace objects.

(In Section
> 1.3.3.1 "move", there still "the absolute path" remains in the second
> table.)

Right, I was originally thinking of allowing "moves" to occur between RNS 
providers, however this is simply not facilitated by the specification; a 
provider-to-provider interface would have to be described and that is out 
of scope for this revision.

It is now changed, thanks!

> This means the absolute path is only handled by a client
> library not by a service itself.  A service does not care about the
> absolute path.  Root directory is only known by a client.  I do not
> think there is any problem about this.

If "handled" means that the client is the only party that maintains a 
comprehensive view of the overall federated namespace.  The first sentence 
in section 2.2.1.1 clearly states that "all service operations [MUST] 
accommodate the use of absolute pathnames."  This section goes on to 
describe how the referral message mechanism is employed to allow dynamic 
redirection to the appropriate RNS service providers if the path provided 
is not served by the current provider.

> (In Section 1.4.6 "RNSJunctionFault", and in the first paragraph of
> Section 2.2.1.1 "Referral Messages", "absolute" path should be "full"
> path?)

Please see the comments above, these two cases are correct and still 
valid.

> Can we have a teleconference on Friday afternoon (3pm or 4pm) in
> California time?

This is a good idea and the time should work for me.

Best regards,
Manuel Pereira
------------------------------------------------------
IBM Almaden Research Center
1-408-927-1935                 [Tieline: 457]
mpereira at us.ibm.com
------------------------------------------------------
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.ogf.org/pipermail/ogsa-wg/attachments/20050803/58d54cda/attachment.html