Unless people have more questions/opinions, can I assume we are happy with this 
new routing/caching efficiency knob?
I don’t see how this could negatively affect anything, besides complicating DS 
configuration further.

On 6/6/18, 2:50 PM, "Dremin, Sergey" <[email protected]> wrote:

    Hi Eric,
    The problem will materialize once we enable deep routing for non-live 
delivery channels with larger libraries. Those delivery channels need to be 
deep routed only to deep cache groups of sufficient size to make sure caching 
efficiency remains at acceptable levels. Right now that is not possible. They 
will be routed to any deep cache groups, even where there is a single server, 
resulting in poor caching efficiency, and more traffic to the mids. 
    Does that explain the problem sufficiently? 
    ~Sergey
    
    
    On 6/5/18, 7:10 PM, "Eric Friedrich (efriedri)" <[email protected]> wrote:
    
        Hey Sergey-
          What is the problem that you are experiencing here?
        
         I understand what you are proposing, but am not sure why this is 
needed. I would find some more details very useful
        
        Thanks,
        Eric
        
        
        
        
        > On Jun 5, 2018, at 5:40 PM, Dremin, Sergey 
<[email protected]> wrote:
        > 
        > We should create an extension to the deep caching/deep routing field 
that will allow you to specify a minimum # of caches in a deep cache group for 
that deep cache group to be enabled for that DS.
        > 
        > 
        > 
        > Cache group size is proportional to caching efficiency. Having a 
configurable value for a minimum # of caches for a DS would allow to change the 
caching efficiency for that DS versus the routing efficiency (that comes with 
deep routing) for that DS.
        > 
        > 
        > 
        > Ideally this is something that is set based on current CDN 
performance.
        > 
        > 
        > 
        >  1.  A deep routing enabled DS with poor caching efficiency could use 
a bigger minimum size for a deep cache group.
        >  2.  A deep routing enabled DS with not sufficient deep routing 
usage, could use a smaller minimum size for a deep cache group.
        > 
        > 
        > 
        > Right now, we need to decide if we want to make this configurable or 
static. Since I think this will need to be configurable in the future anyway, 
so it a good idea to do it now.
        > 
        > 
        > 
        > This will require changes to TO/TP and traffic router.
        > 
        > Thoughts?
        
        
    
    

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