Per-Entity Metadata Working Group

[Tom Scavo <>]

On Wed, Sep 14, 2016 at 3:47 PM, Cantor, Scott 
<>
 wrote:
> On 9/14/16, 3:05 PM, 
> "
>  on behalf of Tom Scavo" 
> <
>  on behalf of 
> >
>  wrote:
>>
>>    Today we deal with that in documentation: "It is strongly recommended
>>    that InCommon SPs and IdPs refresh and verify metadata at least daily.
>>    An optimal configuration would attempt to refresh metadata every hour
>>    (assuming your client supports HTTP Conditional GET)."
>
> In both the batch and MDQ cases, our metadata code will allow cacheDuration 
> to influence the behavior, so if you want people to refresh every hour, you 
> can set cacheDuration to cause that to happen, within some boundaries the 
> deployer can set. You don't have to just rely on advice.

Yes, I get that. That's why I'm asking this group if it matters. I'm
not sure it does but I could be missing something.

In the case of aggregates, cacheDuration and HTTP Conditional GET go
together. For entities, HTTP Conditional GET is a "nice to have," as
you suggested earlier, since the penalty for refreshing the cache is
much less for small files.

Tom