Whether a replica may serve, and the only path by which it becomes allowed to.
A populated database is not an admission: a replica also needs a few installation-global values
minted once that it can neither invent nor recompute (system.private_key keys CSRF tokens, so
two minters issue tokens the other rejects, which shows as intermittent "form has expired").
Admission is a state machine with one entry and one exit, and every unknown resolves toward
the primary.
Whether a replica may serve, and the only path by which it becomes allowed to.
A populated database is not an admission: a replica also needs a few installation-global values minted once that it can neither invent nor recompute (
system.private_keykeys CSRF tokens, so two minters issue tokens the other rejects, which shows as intermittent "form has expired"). Admission is a state machine with one entry and one exit, and every unknown resolves toward the primary.