diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/config.sgml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 0d02e21a1ab..fea683cb49c 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -5068,6 +5068,13 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class=" until it eventually reaches the primary. Standbys make no other use of feedback they receive other than to pass upstream. </para> + <para> + Note that if the clock on standby is moved ahead or backward, the + feedback message might not be sent at the required interval. In + extreme cases, this can lead to a prolonged risk of not removing dead + rows on the primary for extended periods, as the feedback mechanism is + based on timestamps. + </para> </listitem> </varlistentry> |