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doc: Improve {archive,restore}_command for compressed logs

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The commands mentioned in the docs with gzip and gunzip did not prefix
the archives with ".gz" and used inconsistent paths for the archives,
which can be confusing.

Reported-by: Philipp Gramzow
Reviewed-by: Fujii Masao
Discussion: https://postgr.es/m/161397938841.15451.13129264141285167267@wrigleys.postgresql.org
This commit is contained in:
Michael Paquier 2021-02-26 14:39:03 +09:00
parent 8556267b2b
commit 329784e118
1 changed files with 2 additions and 2 deletions
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doc/src/sgml/backup.sgml
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@ -1520,11 +1520,11 @@ tar -rf /var/lib/pgsql/backup.tar /var/lib/pgsql/archive/
If archive storage size is a concern, you can use
<application>gzip</application> to compress the archive files:
<programlisting>
archive_command = 'gzip &lt; %p &gt; /var/lib/pgsql/archive/%f'
archive_command = 'gzip &lt; %p &gt; /mnt/server/archivedir/%f.gz'
</programlisting>
You will then need to use <application>gunzip</application> during recovery:
<programlisting>
restore_command = 'gunzip &lt; /mnt/server/archivedir/%f &gt; %p'
restore_command = 'gunzip &lt; /mnt/server/archivedir/%f.gz &gt; %p'
</programlisting>
</para>
</sect3>