DOCSP-31171 Concurrent DDL Ops (#4747)

* DOCSP-31171 Concurrent DDL Ops

* build error

* release notes + ddl operations section

* remove include

* text formatting

* alphabetize stages

* JA feedback

* SS feedback

* link glossary

* typo

* nit feedback

Author: ajhuh-mdb

source/includes/currentOp-output-example.rst

@@ -371,6 +371,8 @@
                              "Database" : <string>,
                              "Collection" : <string>,
                              "Metadata" : <string>,
+                             "DDLDatabase" : <string>,
+                             "DDLCollection" : <string>, 
                              "oplog" : <string>
                          },
                          "waitingForLock" : <boolean>,

source/includes/fact-lock-types.rst

@@ -41,6 +41,19 @@
    * - ``Metadata``
 
      - Represents metadata lock.
+  
+   * - ``DDLDatabase``
+
+     - Represents a :term:`DDL <DDL (Data Definition Language)>` database lock.
+
+       .. versionadded:: 7.1
+
+   * - ``DDLCollection``
+    
+     - Represents a :term:`DDL <DDL (Data Definition Language)>` collection 
+       lock.
+
+       .. versionadded:: 7.1 
 
    * - ``oplog``
-     - Represents lock on the :term:`oplog`.
+     - Represents lock on the :term:`oplog`.

source/release-notes/7.1.txt

@@ -41,6 +41,19 @@ MongoDB 7.1 introduces the following aggregation stages:
 General Changes
 ---------------
 
+Concurrent DDL Operations 
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Starting in MongoDB 7.1, when you run multiple :term:`DDL operations
+<DDL (Data Definition Language)>` that target different collections from the 
+same database, MongoDB runs those operations concurrently.
+
+This change adds two new types to the ``serverStatus`` :serverstatus:`locks` 
+field and :data:`currentOp.locks` output: 
+
+- ``DDLDatabase``
+- ``DDLCollection``
+
 Improved Index Builds
 ~~~~~~~~~~~~~~~~~~~~~