diff --git a/doc/src/sgml/high-availability.sgml b/doc/src/sgml/high-availability.sgml
index a526f6d5b1..da174558d4 100644
--- a/doc/src/sgml/high-availability.sgml
+++ b/doc/src/sgml/high-availability.sgml
@@ -889,7 +889,8 @@ primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
In lieu of using replication slots, it is possible to prevent the removal
of old WAL segments using , or by
- storing the segments in an archive using .
+ storing the segments in an archive using
+ .
However, these methods often result in retaining more WAL segments than
required, whereas replication slots retain only the number of segments
known to be needed. An advantage of these methods is that they bound
@@ -897,8 +898,8 @@ primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
to do this using replication slots.
- Similarly, hot_standby_feedback
- and vacuum_defer_cleanup_age provide protection against
+ Similarly,
+ and provide protection against
relevant rows being removed by vacuum, but the former provides no
protection during any time period when the standby is not connected,
and the latter often needs to be set to a high value to provide adequate