doc: Improve pg_upgrade rsync examples to use clusterdir

Commit 9521ce4a7a1125385fb4de9689f345db594c516a from Sep 13, 2017 and
backpatched through 9.5 used rsync examples with datadir.  The reporter
has pointed out, and testing has verified, that clusterdir must be used,
so update the docs accordingly.

Reported-by: Don Seiler
Discussion: https://postgr.es/m/CAHJZqBD0u9dCERpYzK6BkRv=663AmH==DFJpVC=M4Xg_rq2=CQ@mail.gmail.com

Backpatch-through: 9.5

diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml
index ba3cc133cbecaeed0d601ee63388f7891965e4f2..841d97c3ec971eacf9c8f85f12615a05c6ae3d60 100644 (file)
--- a/doc/src/sgml/ref/pgupgrade.sgml
+++ b/doc/src/sgml/ref/pgupgrade.sgml
@@ -494,10 +494,10 @@ pg_upgrade.exe
        server:
 
 <programlisting>
-rsync --archive --delete --hard-links --size-only --no-inc-recursive old_pgdata new_pgdata remote_dir
+rsync --archive --delete --hard-links --size-only --no-inc-recursive old_cluster new_cluster remote_dir
 </programlisting>
 
-       where <option>old_pgdata</> and <option>new_pgdata</> are relative
+       where <option>old_cluster</> and <option>new_cluster</> are relative
        to the current directory on the primary, and <option>remote_dir</>
        is <emphasis>above</> the old and new cluster directories
        on the standby.  The directory structure under the specified
@@ -506,8 +506,8 @@ rsync --archive --delete --hard-links --size-only --no-inc-recursive old_pgdata
        remote directory, e.g.
 
 <programlisting>
-rsync --archive --delete --hard-links --size-only --no-inc-recursive /opt/PostgreSQL/9.5/data \
-      /opt/PostgreSQL/9.6/data standby.example.com:/opt/PostgreSQL
+rsync --archive --delete --hard-links --size-only --no-inc-recursive /opt/PostgreSQL/9.5 \
+      /opt/PostgreSQL/9.6 standby.example.com:/opt/PostgreSQL
 </programlisting>
 
        You can verify what the command will do using