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doc: Further clarify how recovery target parameters are applied

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Recovery target parameters are all applied even in standby mode.  The
previous documentation mostly wished they were not but this was never
the case.

Discussion: https://www.postgresql.org/message-id/flat/e445616d-023e-a268-8aa1-67b8b335340c%40pgmasters.net
This commit is contained in:
Peter Eisentraut 2019-09-29 23:07:22 +02:00
parent 2c97f73468
commit e04a53a607
1 changed files with 9 additions and 11 deletions
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20
doc/src/sgml/config.sgml
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@ -3152,13 +3152,11 @@ include_dir 'conf.d'
recovery when the end of archived WAL is reached, but will keep trying to
continue recovery by connecting to the sending server as specified by the
<varname>primary_conninfo</varname> setting and/or by fetching new WAL
segments using <varname>restore_command</varname>. In this mode, you can
use parameters in both <xref
linkend="runtime-config-wal-archive-recovery"/> and <xref
linkend="runtime-config-replication-standby"/>. Parameters from
<xref linkend="runtime-config-wal-recovery-target"/> will not be used,
with the exception of <xref linkend="guc-recovery-target-timeline"/>
which allows a timeline to be selected for recovery.
segments using <varname>restore_command</varname>. For this mode, the
parameters from this section and <xref
linkend="runtime-config-replication-standby"/> are of interest.
Parameters from <xref linkend="runtime-config-wal-recovery-target"/> will
also be applied but are typically not useful in this mode.
</para>
<para>
@ -3168,10 +3166,10 @@ include_dir 'conf.d'
<filename>recovery.signal</filename> files are created, standby mode
takes precedence. Targeted recovery mode ends when the archived WAL is
fully replayed, or when <varname>recovery_target</varname> is reached.
In this mode, you can use parameters from both <xref
linkend="runtime-config-wal-archive-recovery"/> and <xref
linkend="runtime-config-wal-recovery-target"/>. Parameters from <xref
linkend="runtime-config-replication-standby"/> will not be used.
In this mode, the parameters from both this section and <xref
linkend="runtime-config-wal-recovery-target"/> will be used. Parameters
from <xref linkend="runtime-config-replication-standby"/> will not be
used.
</para>
<variablelist>