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pg_upgrade docs: clarify rsync and move verification step

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These are adjustments based on someone using the new standby upgrade
steps.

Report by Andy Colson

Backpatch through 9.5
This commit is contained in:
Bruce Momjian 2015-09-01 16:42:43 -04:00
parent 8a02b3d732
commit 46bd95e2a8
1 changed files with 18 additions and 15 deletions
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33
doc/src/sgml/ref/pgupgrade.sgml
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@ -310,8 +310,21 @@ NET STOP postgresql-9.0
</para> </para>
<para> <para>
Streaming replication and log-shipping standby servers can remain running until Streaming replication and log-shipping standby servers can
a later step. remain running until a later step.
</para>
</step>
<step>
<title>Verify standby servers</title>
<para>
If you are upgrading Streaming Replication and Log-Shipping standby
servers, verify that the old standby servers are caught up by running
<application>pg_controldata</> against the old primary and standby
clusters. Verify that the <quote>Latest checkpoint location</>
values match in all clusters. (There will be a mismatch if old
standby servers were shut down before the old primary.)
</para> </para>
</step> </step>
@ -404,7 +417,9 @@ pg_upgrade.exe
If you have Streaming Replication (<xref If you have Streaming Replication (<xref
linkend="streaming-replication">) or Log-Shipping (<xref linkend="streaming-replication">) or Log-Shipping (<xref
linkend="warm-standby">) standby servers, follow these steps to linkend="warm-standby">) standby servers, follow these steps to
upgrade them (before starting any servers): upgrade them. You will not be running <application>pg_upgrade</>
on the standby servers, but rather <application>rsync</>. Do not
start any servers yet.
</para> </para>
<substeps> <substeps>
@ -447,18 +462,6 @@ pg_upgrade.exe
</para> </para>
</step> </step>
<step>
<title>Verify standby servers</title>
<para>
To prevent old standby servers from being modified, run
<application>pg_controldata</> against the primary and standby
clusters and verify that the <quote>Latest checkpoint location</>
values match in all clusters. (This requires the standbys to be
shut down after the primary.)
</para>
</step>
<step> <step>
<title>Save configuration files</title> <title>Save configuration files</title>