Merge pull request 'Playbook 08: a fix that moves a file to a new filler compares the values first (issue 957)' (#391) from fix/957-playbook-08-first-fill into main

2026-10-16 21:56:23 +00:00
parent f795356ae1 78353ad272
commit 73b9cc3257
1 changed files with 9 additions and 0 deletions
@@ -62,6 +62,15 @@ done-when from holding, and that fault is in the same files, it is taken into th
 request with a review round of its own. A fault in other code is opened as an issue of its own, and the first
 issue waits for it (issue 937: mesh-catalog #335 was taken in; issue 943 was opened).

+**A fix that moves a file to a new filler compares the values first.** When a fix makes a module's file filled a
+new way for the first time (the provisioner client in place of the controller, a provider's entry in place of a
+composed value), the fix lists every value the old way put into that file on each machine it reaches and shows,
+in its review, that the new way gives the same values, or says which differ and why. A difference nobody looked
+at is an outage: on 2026-10-16 the forge and the identity provider on the control node were down for 17 minutes
+because postgres's consumers were served the port inside its container instead of the port it is published on
+(issue 957). The comparison is read from the machines (the file as it is today) before the merge, not from the
+code.
+
 ## Bounds

 | Waiting on | Bound | Past the bound |