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Subject: [PATCH] Highlight that pg_receivewal doesn't apply WAL, and as such synchronous-commit needs to be remote_write or lower.
Date: Tue, 9 Jul 2019 13:14:25 -0400
Authors: Álvaro Herrera, Laurenz Albe and Jesper Pedersen
Review-by: Álvaro Herrera, Laurenz Albe and Jesper Pedersen
---
doc/src/sgml/ref/pg_receivewal.sgml | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/doc/src/sgml/ref/pg_receivewal.sgml b/doc/src/sgml/ref/pg_receivewal.sgml
index 0506120c00..16f9c41ff1 100644
--- a/doc/src/sgml/ref/pg_receivewal.sgml
+++ b/doc/src/sgml/ref/pg_receivewal.sgml
@@ -207,6 +207,14 @@ PostgreSQL documentation
server as a synchronous standby, to ensure that timely feedback is
sent to the server.
</para>
+
+ <para>
+ Note that while WAL will be flushed with this setting,
+ <application>pg_receivewal</application> never applies it, so
+ <xref linkend="guc-synchronous-commit"/> must not be set to
+ <literal>remote_apply</literal> if <application>pg_receivewal</application>
+ is the only synchronous standby.
+ </para>
</listitem>
</varlistentry>
--
2.21.0
--------------2AC79BB0843BAB51DC6FC758--
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Subject: Re: [PATCH] Highlight that pg_receivewal doesn't apply WAL, and as such synchronous-commit needs to be remote_write or lower.
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