Add x-quorum-target-group-size

Author: SimonUnge

deps/rabbit/src/rabbit_quorum_queue_periodic_membership_reconciliation.erl

@@ -201,11 +201,18 @@ get_target_size(Q, N) when N > 0 ->
     max(N, get_target_size(Q)).
 
 get_target_size(Q) ->
-    case rabbit_policy:get(<<"target-group-size">>, Q) of
+    PolicyValue = case rabbit_policy:get(<<"target-group-size">>, Q) of
+                      undefined ->
+                          0;
+                      PolicyN ->
+                          PolicyN
+                  end,
+    Arguments = amqqueue:get_arguments(Q),
+    case rabbit_misc:table_lookup(Arguments, <<"x-quorum-target-group-size">>) of
         undefined ->
-            0;
-        N ->
-            N
+            PolicyValue;
+        ArgN ->
+            max(ArgN, PolicyValue)
     end.
 
 remove_members(_Q, []) ->

deps/rabbitmq_management/priv/www/js/tmpl/queues.ejs

@@ -336,7 +336,8 @@
                 <% if (queue_type == "quorum") { %>
                   <span class="argument-link" field="arguments" key="x-delivery-limit" type="number">Delivery limit</span><span class="help" id="delivery-limit"></span>
                   | <span class="argument-link" field="arguments" key="x-quorum-initial-group-size" type="number">Initial cluster size</span><span class="help" id="queue-initial-cluster-size"></span><br/>
-                  <span class="argument-link" field="arguments" key="x-dead-letter-strategy" type="string">Dead letter strategy</span><span class="help" id="queue-dead-letter-strategy"></span>
+                  | <span class="argument-link" field="arguments" key="x-quorum-target-group-size" type="number">Target cluster size</span><span class="help" id="qourum-queue-target-group-size"></span>    
+                    <span class="argument-link" field="arguments" key="x-dead-letter-strategy" type="string">Dead letter strategy</span><span class="help" id="queue-dead-letter-strategy"></span>
                 <% } %>
                 <% if (queue_type == "stream") { %>
                   <span class="argument-link" field="arguments" key="x-max-age" type="string">Max time retention</span><span class="help" id="queue-max-age"></span>