DOCS-11809: rangeDeleterBatchDelayMS parameter

Author: Kay Kim

source/reference/parameters.txt

@@ -1329,6 +1329,43 @@ Sharding Parameters
 
       - :parameter:`ShardingTaskExecutorPoolMinSize`
 
+
+.. parameter:: rangeDeleterBatchDelayMS
+
+   .. versionadded:: 3.4.17.
+
+   |mongod-only|
+
+   Type: Non-negative integer
+
+   Default: 20
+
+   The amount of time in milliseconds to wait before the next batch of
+   deletion during the cleanup stage of :ref:`chunk migration
+   <chunk-migration-procedure>` (or the :dbcommand:`cleanupOrphaned`
+   command).
+
+   In MongoDB 3.4, consider whether :ref:`_secondaryThrottle
+   <chunk-migration-replication>` is set before modifying the
+   :parameter:`rangeDeleterBatchDelayMS`. In MongoDB 3.4, the
+   :ref:`_secondaryThrottle replication delay
+   <chunk-migration-replication>` occurs after each document deletion
+   instead of after the batch deletion.
+
+   The following sets the :parameter:`rangeDeleterBatchDelayMS` to 200
+   milliseconds:
+
+   .. code-block:: sh
+
+      mongod --setParameter rangeDeleterBatchDelayMS=200
+
+   The parameter may also be set using the :dbcommand:`setParameter`
+   command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, rangeDeleterBatchDelayMS: 200 } )
+
 .. parameter:: skipShardingConfigurationChecks
 
    .. versionadded:: 3.4.11