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Building a highly-available web service without a database
If you’ve ever built a web service or a web app, you know the drill: pick a database, pick a web service framework (and in today’s day and age, pick a front-end framework, but let’…
We’ve just made our simple little service into a full-fledged highly-available database, without fundamentally changing how developers write code. (Fun story: Meta switched to Raft to handle replication for each of its MySQL clusters, so we’re essentially doing the same thing but without using a separate database.) To store image files, or blobs that shouldn’t be part of the datastore, we use EFS (a highly available NFS) that is shared between the three servers.
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