A-7 left the cause as a hypothesis and said to confirm it with the statement
logging A-3 used. Doing that shows the hypothesis was wrong.
Login issues no SQL at all in volatile mode. Refresh issues exactly one
statement, and it is not the one A-7 guessed:
select cscme1_0.SCOPE_ID from CLIENT_SCOPE_CLIENT cscme1_0
where cscme1_0.CLIENT_ID=$1 and cscme1_0.DEFAULT_SCOPE=$2
parameters: $1 = '131a9912-...', $2 = 'f'
REVOKED_TOKEN never appears. DEFAULT_SCOPE='f' means this is the optional
client scope list, which refresh needs because it recomputes which scopes go
into the new access token.
The larger finding is that A-7's table was conditional and did not say so.
The single statement is issued once and then cached, so the same
configuration produces three different outcomes depending only on cache
warmth — all three reproduced:
fully cold login 400 (select ce1_0.ID from CLIENT ...)
CLIENT warm login 200, refresh 500 <- what A-7 measured
fully warm login 200, refresh 200
So "volatile means you can log in without a database" is also conditional:
on a cold start the client lookup itself fails. In each case the Keycloak
log names the failing SQL directly, so this is determined rather than
inferred.
A-7 keeps its original wording with a correction banner above it, so what
was mis-guessed and why stays visible.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>