Purge – Grass Valley NewsBrowse Desktop Browsing System Installation v.3.1 User Manual
Page 145

April 27, 2006
NewsBrowse Installation and Configuration Guide
145
Purge
Purge
Asset
Manager
Metadata
Service
MDI*
Server
Proxy
MDI*
*MDIs can alternatively reside on encoders, 
ISS platforms, or a dedicated MDI server. 
Resolver
The Rules Wizard periodically 
queries the Metadata Service 
for a list of metadata records 
that are set to expire. The 
Metadata Service only returns 
assets that are set to expire and 
are not flagged as being on 
hold.
For each metadata 
record set to expire the 
Rules Wizard queries 
the ASK for related 
asset components (e.g. 
hi-res, storyboard, 
thumbnail, etc.).
For each asset component the Rules 
Wizard communicates the appropriate 
MDI to initiate a delete. The MDI 
communicates to the appropriate hi-res 
system (Profile XP, News NAS, etc.) to 
complete the delete.
Purge removes all associated components 
of an asset. The metadata record is the 
last component deleted, so that if for any 
reason any component fails to delete, its 
record is still intact and the component is 
visible to the NewsBrowse application.
1.3.1: delete material
1.3:
delet
e
asset
1.4:
delete
asset
1.1:
g
et e
xpired assets
1.5:
delete m
etadata recor
d
1.2:
g
et asse
t
compo
nents
Proxy
Storage
Storage
(NAS)
1.4.1:
delete p
ro
x
y
