In pg_upgrade 9.0 and 9.1, document suggestion of using a non-default

port number to avoid unintended client connections.

diff --git a/doc/src/sgml/pgupgrade.sgml b/doc/src/sgml/pgupgrade.sgml
index 8e975d8e207e7f0fda11f5bc3d492294f2945323..31f1c3d1d486fd0edec9f9bc2782e03ae3808a0b 100644 (file)
--- a/doc/src/sgml/pgupgrade.sgml
+++ b/doc/src/sgml/pgupgrade.sgml
@@ -239,8 +239,7 @@ gmake prefix=/usr/local/pgsql.new install
      so you might want to set authentication to <literal>trust</> in
      <filename>pg_hba.conf</>, or if using <literal>md5</> authentication,
      use a <filename>~/.pgpass</> file (see <xref linkend="libpq-pgpass">)
-     to avoid being prompted repeatedly for a password.  Also make sure
-     pg_upgrade is the only program that can connect to the clusters.
+     to avoid being prompted repeatedly for a password.
     </para>
    </step>
  
@@ -319,6 +318,9 @@ pg_upgrade.exe
  
     <para>
      Obviously, no one should be accessing the clusters during the migration.
+     Consider using a non-default port number, e.g.  50432, for old
+     and new clusters to avoid unintended client connections during
+     the upgrade.
     </para>
  
     <para>