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Update GNU tar error code documentation.

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Backpatch to 8.2.X.
This commit is contained in:
Bruce Momjian 2007-09-14 04:15:50 +00:00
parent 6c9e4d7e08
commit edc18429bd
1 changed files with 11 additions and 10 deletions
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21
doc/src/sgml/backup.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.99 2007/07/16 22:20:51 momjian Exp $ --> <!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.100 2007/09/14 04:15:50 momjian Exp $ -->
<chapter id="backup"> <chapter id="backup">
<title>Backup and Restore</title> <title>Backup and Restore</title>
@ -729,16 +729,17 @@ SELECT pg_stop_backup();
<para> <para>
Some backup tools that you might wish to use emit warnings or errors Some backup tools that you might wish to use emit warnings or errors
if the files they are trying to copy change while the copy proceeds. if the files they are trying to copy change while the copy proceeds.
This situation is normal, and not an error, when taking a base backup of This situation is normal, and not an error, when taking a base backup
an active database; so you need to ensure that you can distinguish of an active database; so you need to ensure that you can distinguish
complaints of this sort from real errors. For example, some versions complaints of this sort from real errors. For example, some versions
of <application>rsync</> return a separate exit code for <quote>vanished of <application>rsync</> return a separate exit code for
source files</>, and you can write a driver script to accept this exit <quote>vanished source files</>, and you can write a driver script to
code as a non-error case. Also, some versions of GNU accept this exit code as a non-error case. Also, some versions of
<application>tar</> consider it an error if a file is changed while GNU <application>tar</> consider it an error if a file was truncated
<application>tar</> is copying it. Fortunately, GNU while <application>tar</> is copying it. Fortunately, GNU
<application>tar</> versions 1.16 and later exit with <literal>1</> <application>tar</> versions 1.16 and later exits with <literal>1</>
if files changed during the backup, and <literal>2</> for other errors. if a file was changed during the backup, and <literal>2</> for other
errors.
</para> </para>
<para> <para>