The functions in the product-queue component that are responsible for
inserting a data-product determine whether or not the product already
exists in the product-queue and reject the insertion if it does.
Regards,
Steve Emmerson
On Thu, Apr 5, 2018 at 9:25 AM, Matthew Foster - NOAA Federal <
matthew.foster@xxxxxxxx> wrote:
> I was trying to find the answer to this question in the online
> documentation, but I couldn't find it clearly stated.
>
> When, exactly, does duplicate checking occur? Does the downstream LDM
> receive the data product *then* do the duplicate check before inserting
> into the queue, OR does the upstream send the product's checksum and the
> accept/reject decision is made at that point (i.e. before the product is
> sent)? I've always assumed it was the latter, but now I'm not 100% sure.
>
> Thanks!
>
> Matt
>
>
> --
> Matt Foster, Science & Operations Officer
> NWS Operations Proving Ground
> 7220 NW 101st Terrace
> Kansas City, MO 64153
> Office: 816-994-3072
>
>
>
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