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Add initdb --sync-only option to sync the data directory to durable

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storage.

Have pg_upgrade use it, and enable server options fsync=off and
full_page_writes=off.

Document that users turning fsync from off to on should run initdb
--sync-only.

[ Previous commit was incorrectly applied as a git merge. ]
This commit is contained in:
Bruce Momjian
2012-12-03 22:47:59 -05:00
parent 25d1ed04a2
commit 630cd14426
5 changed files with 47 additions and 5 deletions
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11
doc/src/sgml/ref/initdb.sgml
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@@ -244,6 +244,17 @@ PostgreSQL documentation
</listitem>
</varlistentry>
<varlistentry>
<term><option>-S</option></term>
<term><option>--sync-only</option></term>
<listitem>
<para>
Safely write all database files to disk and exit. This does not
perform any of the normal <application>initdb</> operations.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-T <replaceable>CFG</></option></term>
<term><option>--text-search-config=<replaceable>CFG</></option></term>