[Go-essp-tech] Publication, versioning and notification

[stephen.pascoe at stfc.ac.uk]

Another issue with changing the publication granularity.
 
Will users be notified about changes to files, atomic-datasets or
realm-datasets?  I think Gavin has said in the past that users will be
emailed when *files* change.  Consider the scenario:
 
 1. A realm-dataset DS1 is published at version v1.
 2. User A downloads variable V1 from DS1.
 3. User B downloads all of DS1.
 4. An error is found in variable V2 of DS1.
 5. The files for V2 are replaced and DS1 is republished as version v2.
 6. User B is notified that some files have changed in DS1.
 7. User A is *not* notified because he never downloaded the files that
changed.
 8. User A & B collaborate discussing the data from DS1 v1.  THEY HAVE
DIFFERENT FILES!
 
If this is how the system is supposed to work it's going to be very
confusing.
 
S.
 
---
Stephen Pascoe  +44 (0)1235 445980
British Atmospheric Data Centre
Rutherford Appleton Laboratory
 

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