Add notes on DB migration compatibility#310
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| On startup, SpiceDB checks to see whether its desired DB migration tag matches the DB migration tag held in the database. | ||
| If they differ, the instance will error out, which prevents an instance from coming up when it can't run against the current datastore DDL. | ||
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| SpiceDB only performs this check on startup, which means that a new DB migration won't cause existing SpiceDB instances to break, |
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"but will impact those instances if restarted"
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Description
This came up in a discord conversation and I was uncertain of the behavior. I went and asked around and figured I'd document here.
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