quorum_repl_doc_improve_v3.patch

application/octet-stream

Filename: quorum_repl_doc_improve_v3.patch

Type: application/octet-stream

Part: 0

Message: Re: Quorum commit for multiple synchronous replication.

Patch

Same data as JSON: GET /api/v1/attachments/:id/patch the parsed metadata as JSON — format, series position, per-file stats; never the diff bytes. API reference →

Format: unified

Series: patch v3

File	+	−
doc/src/sgml/high-availability.sgml	10	0

diff --git a/doc/src/sgml/high-availability.sgml b/doc/src/sgml/high-availability.sgml
index 9e2be5f..9a3a498 100644
--- a/doc/src/sgml/high-availability.sgml
+++ b/doc/src/sgml/high-availability.sgml
@@ -1228,6 +1228,16 @@ synchronous_standby_names = 'FIRST 2 (s1, s2, s3)'
     the rate of generation of WAL data.
    </para>
 
+   <para>
+    A quorum-based synchronous replication is basically more efficient than
+    a priority-based one when you specify multiple standbys in
+    <varname>synchronous_standby_names</> and your master doesn't need to
+    be in synchronous with all of the nominated standbys by it. While quorum-based
+    synchronous replication master waits only for a specified number of fastest
+    standbys, priority-based synchronous replication master must wait for standbys
+    chosen based on their priorities, which may be slower than others.
+   </para>
+
    </sect3>
 
    <sect3 id="synchronous-replication-ha">