diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 179c60e46b9..75877551d7e 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -674,7 +674,7 @@ SET ENABLE_SEQSCAN TO OFF;
         cryptanalysis when large amounts of traffic can be examined, but it
         also carries a large performance penalty. The sum of sent and received
         traffic is used to check the limit. If this parameter is set to 0,
-        renegotiation is disabled. The default is <literal>512MB</>.
+        renegotiation is disabled. The default is <literal>0</>.
        </para>
        <note>
         <para>
@@ -686,6 +686,14 @@ SET ENABLE_SEQSCAN TO OFF;
          disabled.
         </para>
        </note>
+
+       <warning>
+        <para>
+         Due to bugs in <productname>OpenSSL</> enabling ssl renegotiation, by
+         configuring a non-zero <varname>ssl_renegotiation_limit</>, is likely
+         to lead to problems like long-lived connections breaking.
+        </para>
+       </warning>
       </listitem>
      </varlistentry>
 
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index a66a7d9198c..a3e86223db7 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -2291,7 +2291,7 @@ static struct config_int ConfigureNamesInt[] =
 			GUC_UNIT_KB,
 		},
 		&ssl_renegotiation_limit,
-		512 * 1024, 0, MAX_KILOBYTES,
+		0, 0, MAX_KILOBYTES,
 		NULL, NULL, NULL
 	},
 
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 82c8ae4a0c8..40ea0f21f0e 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -80,7 +80,7 @@
 #ssl = off				# (change requires restart)
 #ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH'	# allowed SSL ciphers
 					# (change requires restart)
-#ssl_renegotiation_limit = 512MB	# amount of data between renegotiations
+#ssl_renegotiation_limit = 0		# amount of data between renegotiations
 #password_encryption = on
 #db_user_namespace = off