From ec7ce54204147ccf1a55aaba526ac4b39071f712 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Wed, 1 Nov 2017 14:32:05 -0400
Subject: [PATCH] doc: Mention pg_stat_wal_receiver in streaming replication
docs
Also make the link to pg_stat_replication more precise.
Author: Michael Paquier <michael.paquier@gmail.com>
Reviewed-by: Jeff Janes <jeff.janes@gmail.com>
---
doc/src/sgml/high-availability.sgml | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/doc/src/sgml/high-availability.sgml b/doc/src/sgml/high-availability.sgml
index aa780d360d..6c0679b0a8 100644
--- a/doc/src/sgml/high-availability.sgml
+++ b/doc/src/sgml/high-availability.sgml
@@ -890,14 +890,20 @@ primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
</para>
<para>
You can retrieve a list of WAL sender processes via the
- <link linkend="monitoring-stats-views-table">
- <literal>pg_stat_replication</literal></link> view. Large differences between
+ <xref linkend="pg-stat-replication-view"> view. Large differences between
<function>pg_current_wal_lsn</function> and the view's <literal>sent_lsn</literal> field
might indicate that the master server is under heavy load, while
differences between <literal>sent_lsn</literal> and
<function>pg_last_wal_receive_lsn</function> on the standby might indicate
network delay, or that the standby is under heavy load.
</para>
+ <para>
+ On a hot standby, the status of the WAL receiver process can be retrieved
+ via the <xref linkend="pg-stat-wal-receiver-view"> view. A large
+ difference between <function>pg_last_wal_replay_lsn</function> and the
+ view's <literal>received_lsn</literal> indicates that WAL is being
+ received faster than it can be replayed.
+ </para>
</sect3>
</sect2>