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#datomic
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2022-01-18
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cmdrdats08:01:29

good morning! I'm looking for more examples of the on-prem datomic metaschema to trinodb for analytics setup - the docs seem pretty thin 😕 anyone know of any other examples?

dazld09:01:23

could someone share an up to date comparison between datomic on-prem and cloud? it’s been a couple of years - the last time I looked at cloud there were some subtle differences iirc.

tony.kay16:01:15

The transaction log listener stuff is trivial to simulate, since there is a tx log. The lack of excision is a bit more difficult to work around, and up until now there is no official way to do a backup/restore of the database in cloud.

tony.kay16:01:45

Though the backup one is a top priority and is supposed to be coming “very soon”

dazld09:01:10

thanks tony!

bhurlow20:01:52

no d/entity in cloud

dazld10:01:06

oh, interesting! d/entity is useful, but I can see why it’s not a priority. It is a bit magical..

bhurlow21:01:07

I think it's more of a performance issue, d/entity is not wire friendly as you could be doing an i/o or request to get a single attribute

dazld09:01:03

ah, I think the non-uniform perf issue is a consequence of the magic in this case, but yes, exactly.

cmdrdats09:01:07

two big things that stand out for me is the lack of being able to listen at the transaction log and no excision

dazld10:01:01

@cmdrdats thank you - I didn’t know about either of those. thanks for sharing.