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[08:58:49] <z-memory> hi - im trying to plan out a "matching engine" - any time a user joins the app, or updates their profile they are checked against everybody who might potentially match with them (same interests, languages etc.) Is there some way to optimise this matching process beyond just comparing the user document to every other document in the database? Could I use some sort of cacheing, or a search engine approach? Thanks for

[08:58:49] <z-memory> helping me think about this

[10:06:45] <adac> How can I import a database backup to a different database with different name with mongorestore

[10:12:19] <adac> Somehow this doesn't seem to work: https://pastebin.com/7DqP83Hs

[19:52:49] <pedahzur> Howdy! I'm trying to install MongoDB from repo.mongodb.org, and I can't find the GPG key used to sign the packages. Where would that be located? The page here: https://docs.mongodb.com/manual/tutorial/verify-mongodb-packages/ just talks about verifying the tarballs.

[19:55:55] <pedahzur> I found a key here: https://www.mongodb.org/static/pgp/server-4.2.asc We'll see if that signs the packages. :)

[20:00:17] <pedahzur> Nope, that failed: "Public key for mongodb-org-shell-4.0.13-1.el7.x86_64.rpm is not installed"

[20:00:42] <pedahzur> Oh, shoot! Wrong version!

[20:02:39] <pedahzur> Yup, the 4.2 key allowed the installation of the 4.2 packages. Cool!