Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit6ae578a

Browse files
committed
Set fallback_application_name for a walreceiver to cluster_name
By default, the fallback_application_name for a physical walreceiveris "walreceiver". This means that multiple standbys cannot bedistinguished easily on a primary, for example in pg_stat_activity orsynchronous_standby_names.If cluster_name is set, use that for fallback_application_name in thewalreceiver. (If it's not set, it remains "walreceiver".) If someoneset cluster_name to identify their instance, we might as well use thatby default to identify the node remotely as well. It's still possibleto specify another application_name in primary_conninfo explicitly.Reviewed-by: Euler Taveira <euler@timbira.com.br>Discussion:https://www.postgresql.org/message-id/flat/1257eaee-4874-e791-e83a-46720c72cac7@2ndquadrant.com
1 parent414a9d3 commit6ae578a

File tree

2 files changed

+12
-4
lines changed

2 files changed

+12
-4
lines changed

‎doc/src/sgml/config.sgml

Lines changed: 11 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3659,7 +3659,8 @@ restore_command = 'copy "C:\\server\\archivedir\\%f" "%p"' # Windows
36593659
<varname>application_name</varname> setting of the standby, as set in the
36603660
standby's connection information. In case of a physical replication
36613661
standby, this should be set in the <varname>primary_conninfo</varname>
3662-
setting; the default is <literal>walreceiver</literal>.
3662+
setting; the default is the setting of <xref linkend="guc-cluster-name"/>
3663+
if set, else <literal>walreceiver</literal>.
36633664
For logical replication, this can be set in the connection
36643665
information of the subscription, and it defaults to the
36653666
subscription name. For other replication stream consumers,
@@ -6560,8 +6561,15 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
65606561
</term>
65616562
<listitem>
65626563
<para>
6563-
Sets the cluster name that appears in the process title for all
6564-
server processes in this cluster. The name can be any string of less
6564+
Sets a name that identifies this database cluster (instance) for
6565+
various purposes. The cluster name appears in the process title for
6566+
all server processes in this cluster. Moreover, it is the default
6567+
application name for a standby connection (see <xref
6568+
linkend="guc-synchronous-standby-names"/>.)
6569+
</para>
6570+
6571+
<para>
6572+
The name can be any string of less
65656573
than <symbol>NAMEDATALEN</symbol> characters (64 characters in a standard
65666574
build). Only printable ASCII characters may be used in the
65676575
<varname>cluster_name</varname> value. Other characters will be

‎src/backend/replication/walreceiver.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -293,7 +293,7 @@ WalReceiverMain(void)
293293

294294
/* Establish the connection to the primary for XLOG streaming */
295295
EnableWalRcvImmediateExit();
296-
wrconn=walrcv_connect(conninfo, false,"walreceiver",&err);
296+
wrconn=walrcv_connect(conninfo, false,cluster_name[0] ?cluster_name :"walreceiver",&err);
297297
if (!wrconn)
298298
ereport(ERROR,
299299
(errmsg("could not connect to the primary server: %s",err)));

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp