From 50ff8844bb3b32fbc2a4d1b2d4fe22b4e5efd779 Mon Sep 17 00:00:00 2001 From: Bruce Momjian Date: Sat, 25 Aug 2018 13:35:14 -0400 Subject: [PATCH] doc: "Latest checkpoint location" will not match in pg_upgrade Mention that "Latest checkpoint location" will not match in pg_upgrade if the standby server is still running during the upgrade, which is possible. "Match" text first appeared in PG 9.5. Reported-by: Paul Bonaud Discussion: https://postgr.es/m/c7268794-edb4-1772-3bfd-04c54585c24e@trainline.com Backpatch-through: 9.5 --- doc/src/sgml/ref/pgupgrade.sgml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml index fae32f9523..52f00bea78 100644 --- a/doc/src/sgml/ref/pgupgrade.sgml +++ b/doc/src/sgml/ref/pgupgrade.sgml @@ -326,7 +326,8 @@ NET STOP postgresql-9.0 against the old primary and standby clusters. Verify that the Latest checkpoint location values match in all clusters. (There will be a mismatch if old standby servers were shut down - before the old primary.) Also, change wal_level to + before the old primary or if the old standby servers are still running.) + Also, change wal_level to replica in the postgresql.conf file on the new primary cluster.