diff options
| author | Amit Kapila <akapila@postgresql.org> | 2025-02-18 12:15:43 +0530 |
|---|---|---|
| committer | Amit Kapila <akapila@postgresql.org> | 2025-02-18 12:15:43 +0530 |
| commit | 217919dd0954f54402e8d0a38cd203a740754077 (patch) | |
| tree | e9a7a913d7a838bb7e43865a15dbf416210a7e58 /doc/src | |
| parent | 53d3daa491be458e543dd5bf24d40595e588e4e7 (diff) | |
| download | postgresql-217919dd0954f54402e8d0a38cd203a740754077.tar.gz postgresql-217919dd0954f54402e8d0a38cd203a740754077.zip | |
Raise a WARNING for max_slot_wal_keep_size in pg_createsubscriber.
During the pg_createsubscriber execution, it is possible that the required
WAL is removed from the primary/publisher node due to
'max_slot_wal_keep_size'.
This patch raises a WARNING during the '--dry-run' mode if the
'max_slot_wal_keep_size' is set to a non-default value on the
primary/publisher node.
Author: Shubham Khanna <khannashubham1197@gmail.com>
Reviewed-by: Peter Smith <smithpb2250@gmail.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Vignesh C <vignesh21@gmail.com>
Discussion: https://postgr.es/m/CAHv8Rj+deqsQXOMa7Tck8CBQUbsua=+4AuMVQ2=MPM0f-ZHbjA@mail.gmail.com
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/ref/pg_createsubscriber.sgml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/pg_createsubscriber.sgml b/doc/src/sgml/ref/pg_createsubscriber.sgml index 26b8e64a4e0..d56487fe2ca 100644 --- a/doc/src/sgml/ref/pg_createsubscriber.sgml +++ b/doc/src/sgml/ref/pg_createsubscriber.sgml @@ -377,6 +377,13 @@ PostgreSQL documentation server. If the target server has a standby, replication will break and a fresh standby should be created. </para> + + <para> + Replication failures can occur if required WAL files are missing. To prevent + this, the source server must set + <xref linkend="guc-max-slot-wal-keep-size"/> to <literal>-1</literal> to + ensure that required WAL files are not prematurely removed. + </para> </refsect2> <refsect2> |