Eugen Rochko 059df83d1d
Fix database serialization failure returning HTTP 500 (#16101)
Database serialization failure occurs when a read-replica is used
and a query takes long enough that rows on the primary database
become unavailable. It should return HTTP 503 as it is temporary.

Re-order rescue definitions according to their status codes
2021-05-05 19:44:35 +02:00
..
2021-02-21 19:50:12 +01:00