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As a user, I want faster retrieval from nwis for short-in-time evaluations #72
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Original Redmine Comment This is a particular problem for large in space evaluations and, while waiting a very long time for data to be acquired from nwis in #100844 for an evaluation that spans 10 days, I noticed messages like this:
I want to revisit that chunking. One alternative might be to use year ranges for evaluations that span one year or more, else the exact range required or some smaller, fixed, period to promote re-use (e.g., 3 months for evaluations > 6 months, else 1 month). Obviously, this is a trade-off and adds complexity and there's nothing inherently wrong with favoring re-use for long-in-time evaluations, but it's a little too painful for short-in-time, large-in-space evaluations. |
Original Redmine Comment I see a related commit:wres|cd1a3db7b6f9d971d1d3b7ce5205cef57ed307f2, which references #80554 and #86887. I also see the main event in commit:wres|811476a207f808831555ff7ce6859529d5c428a5, which references #80554. I guess I will read #80554 as time allows, but the purpose of this ticket is to revisit that explicit trade-off because I think it went too far. |
Original Redmine Comment In other words, the goal would be to reframe the trade-off and not destroy performance for multi-year evaluations, rather to do better for shorter evaluations. This will add some code complexity and may reduce data re-use overall, but it's necessary. |
Author Name: James (James)
Original Redmine Issue: 101014, https://vlab.noaa.gov/redmine/issues/101014
Original Date: 2022-02-02
Given a short-in-time evaluation that acquires data from nwis
When the data is chunked in time for requests
Then the chunks should achieve a better balance of retrieval time versus data re-use
Redmine related issue(s): 108361
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