UWS POST PHASE=RUN

[Matthew Graham]

On Nov 5, 2014, at 11:42 AM, Walter Landry wrote:

> Matthew Graham <mjg at cacr.caltech.edu> wrote:
>> Hi,
>> 
>> On Nov 5, 2014, at 11:22 AM, Walter Landry wrote:
>> 
>>>> On Nov 5, 2014, at 8:33 AM, Matthew Graham wrote:
>>>>> The QUEUED state can be useful in third-party data transfers where
>>>>> you are negotiating with two VOSpaces and do not want the job
>>>>> running until both client and server are agreed on the
>>>>> transaction. This is not an estimate but negotiation.
>>> 
>>> Can you give an example of this negotiation?  What kind of information
>>> is being exchanged?
>> 
>> I want to transfer data from VOSpace1 (V1) to VOSpace2 (V2). I
>> contact V2 to negotiate the transfer details and schedule the
>> transfer - estimation would be useless here since as you say all
>> details are promptly forgotten. I then contact V1, again the
>> appropriate negotiation and when I am happy that this looks good,
>> initiate the transfer with PHASE = RUN.
> 
> What exactly do you mean by negotiation?  Are you trying to discover
> capabilities?

No, a VOSpace client presents the list of transfer protocols that it is willing to use and the VOSpace then responds will its take on the list and transfer details for each.

-- M.