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7You might want to read about the CAP theorem. This says you can only pick two of Consistency Avaliability and Partition Tolerance. This makes ensuring consistency in a distributed system difficult, if not impossible.JonasH– JonasH2023-09-20 13:59:33 +00:00Commented Sep 20, 2023 at 13:59
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1Why do you have things strewn across multiple DBs? Why not move to a single DB (perhaps with multiple read replicas)?mmathis– mmathis2023-09-20 14:01:11 +00:00Commented Sep 20, 2023 at 14:01
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9There are entire research papers focused on this topic. This topic is not one that can be easily answered in a stackoverflow question. There are books written about this (TLDR: most of them conclude that this is a very, very difficult task and only provide strategies to mitigate the problem, not completely solve it)slebetman– slebetman2023-09-20 22:52:14 +00:00Commented Sep 20, 2023 at 22:52
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1@guillaume31 I've made some additions to my question which hopefully make clearer what I'm asking for.cis– cis2023-09-21 08:31:32 +00:00Commented Sep 21, 2023 at 8:31
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3@slebetman you say "There are entire research papers focused on this topic", but you don't give us one example. Same thing about "books". Can you list some of them, or, at least, give us a way to how find it?v1d3rm3– v1d3rm32023-09-21 10:35:44 +00:00Commented Sep 21, 2023 at 10:35
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