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Hi Mike, re: > Let's say I have two requests from the same feed but from two different > hosts, one is ".*" and the other is "(.*)". My understanding here is this > will result in data from both requests getting into the product queue and > bypass the normal Primary / Alternate behavior. Your understanding is a little bit off. These REQUESTs will result in all products from each upstream being sent, but only one of each product will actually be inserted into the local LDM queue. The first one to arrive will be inserted into the queue and the second one will be rejected since its MD5 signature will match a product that is already in the queue. We refer to this behaviour as duplicate product detection and rejection. re: > My question is if data from both requests are making it into the PQ, will a > single PQACT entry for that data be acted on once or twice? There will only be one copy of each product inserted into the LDM queue, and, therefore, it will only be acted on once. re: > I'm thinking about doing this for several of my requests to give me some > added redundancy, but I just want to make sure I don't double-up on > triggering PQACTs before I give myself a bad headache. In the great majority of cases, you won't have to worry about this. The case that could result in the same product being inserted into the queue more than once is when the receipt latencies for one feed exceed the product residency time of the local LDM queue. In this case, the product can be reinserted since the one that was previously inserted will no longer exist in the local queue. The easiest way to protect against this sort of situation is to make the local LDM queue large enough that the product residency time exceeds the latency of products received. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: BIQ-359809 Department: Support LDM Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.