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Add support for progress reporting to pg_verifybackup

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This adds a new option to pg_verifybackup called -P/--progress, showing
every second some information about the progress of the checksum
verification based on the data of a backup manifest.

Similarly to what is done for pg_rewind and pg_basebackup, the
information printed in the progress report consists of the current
amount of data computed and the total amount of data that will be
computed.  Note that files found with an incorrect size do not have
their checksum verified, hence their size is not appended to the total
amount of data estimated during the first scan of the manifest data
(such incorrect sizes could be overly high, for one, falsifying the
progress report).

Author: Masahiko Sawada
Discussion: https://postgr.es/m/CAD21AoC5+JOgMd4o3z_oxw0f8JDSsCYY7zSbhe-O9x7f33rw_A@mail.gmail.com
This commit is contained in:
Michael Paquier
2023-02-06 14:40:31 +09:00
parent 71c37797d7
commit d07c2948bf
3 changed files with 111 additions and 7 deletions
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15
doc/src/sgml/ref/pg_verifybackup.sgml
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@ -178,6 +178,21 @@ PostgreSQL documentation
</listitem>
</varlistentry>
<varlistentry>
<term><option>-P</option></term>
<term><option>--progress</option></term>
<listitem>
<para>
Enable progress reporting. Turning this on will deliver a progress
report while verifying checksums.
</para>
<para>
This option cannot be used together with the option
<option>--quiet</option>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-q</option></term>
<term><option>--quiet</option></term>