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Storing BRC in mongo. #19

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chhsiao1981 opened this issue Dec 7, 2020 · 0 comments
Open

Storing BRC in mongo. #19

chhsiao1981 opened this issue Dec 7, 2020 · 0 comments

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@chhsiao1981
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chhsiao1981 commented Dec 7, 2020 •
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BRC is recording user-read-article within 1 year.

It's assumed that on average each user reads around 10000 articles per year.
We can store {userID, articleID, read-time} in mongo and indexed by user-id for now.
(expecting 1T～10T of mem for 10M users.)
(mongodb is using LRU for the indexed mem usage～
no need to worry mem for now～)
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