From 9b4271deb97270d336c9d34ac911748faa5a4892 Mon Sep 17 00:00:00 2001
From: Robert Haas <rhaas@postgresql.org>
Date: Fri, 7 Jan 2011 11:06:55 -0500
Subject: [PATCH] Document pg_stat_replication, bump catversion since that was
overlooked.
Itagaki Takahiro, edited by me.
---
doc/src/sgml/high-availability.sgml | 10 ++++++++++
doc/src/sgml/monitoring.sgml | 9 +++++++++
src/include/catalog/catversion.h | 2 +-
3 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/doc/src/sgml/high-availability.sgml b/doc/src/sgml/high-availability.sgml
index b1ec461f53e..d8841228e1a 100644
--- a/doc/src/sgml/high-availability.sgml
+++ b/doc/src/sgml/high-availability.sgml
@@ -865,6 +865,16 @@ primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
process status of the WAL receiver process, displayed using the
<command>ps</> command (see <xref linkend="monitoring-ps"> for details).
</para>
+ <para>
+ You can retrieve a list of WAL sender processes via the
+ <link linkend="monitoring-stats-views-table">
+ <literal>pg_stat_replication</></link> view. Large differences between
+ <function>pg_current_xlog_location</> and <literal>sent_location</> field
+ might indicate that the master server is under heavy load, while
+ differences between <literal>sent_location</> and
+ <function>pg_last_xlog_receive_location</> on the standby might indicate
+ network delay, or that the the standby is under heavy load.
+ </para>
</sect3>
</sect2>
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 739b8a27fd9..e2d27da38c7 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -294,6 +294,15 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
</entry>
</row>
+ <row>
+ <entry><structname>pg_stat_replication</><indexterm><primary>pg_stat_replication</primary></indexterm></entry>
+ <entry>One row per WAL sender process, showing process <acronym>ID</>,
+ user OID, user name, application name, client's address and port number,
+ time at which the server process began execution, and transaction log
+ location.
+ </entry>
+ </row>
+
<row>
<entry><structname>pg_stat_all_tables</><indexterm><primary>pg_stat_all_tables</primary></indexterm></entry>
<entry>For each table in the current database (including TOAST tables),
diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h
index 3f5ef242ed2..92e1a0fe62c 100644
--- a/src/include/catalog/catversion.h
+++ b/src/include/catalog/catversion.h
@@ -53,6 +53,6 @@
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 201101051
+#define CATALOG_VERSION_NO 201101071
#endif
--
GitLab