Update properties.rst
The default value of "query.max-total-memory" should be  "query.max-memory * 2"
@@ -97,7 +97,7 @@ Memory Management Properties
^^^^^^^^^^^^^^^^^^^^^^^^^^
* **Type:** ``data size``
- * **Default value:** ``query.max-total-memory * 2``
+ * **Default value:** ``query.max-memory * 2``
This is the max amount of user and system memory a query can use across the entire cluster.
System memory is allocated during execution for things that are not directly
