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doc: Further clarify how recovery target parameters are applied 

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>