DOCS-15977 autoMergerIntervalSecs and autoMergerThrottlingMS (#3243)

* DOCS-15977 autoMergerInterval and autoMergerIntervalSecs

* internal review

* tech review

* tech review

* Update source/reference/parameters.txt

Co-authored-by: Pierlauro Sciarelli <[email protected]>

---------

Co-authored-by: Pierlauro Sciarelli <[email protected]>

Author: jmd-mongo

snooty.toml

@@ -253,6 +253,10 @@ sbe-short = "slot-based engine"
 sbe-title = "Slot-Based Query Execution Engine"
 fcv = ":abbr:`fCV (feature compatibility version)`"
 fts = "Atlas Search"
+# Automerger Constants
+auto-merge-upper = "AutoMerger"
+auto-merge-lower = "automerger"
+auto-merge-action = "automerging"
 # In Use Encryption Constants
 csfle = "Client-Side Field Level Encryption"
 csfle-abbrev = "CSFLE"

source/reference/parameters.txt

@@ -3090,6 +3090,66 @@ Sharding Parameters
    ``AsyncRequestsSenderUseBaton`` and always enables the performance
    enhancement controlled by the parameter.
 
+.. parameter:: autoMergerIntervalSecs
+
+   .. versionadded:: 7.0
+
+   *Type*: integer
+
+   *Default*: 3600
+   
+   |mongod-only|
+
+   When {+auto-merge-upper+} is enabled, specifies the amount of time
+   between {+auto-merge-action+} rounds, in seconds. The default value 
+   is 3600 seconds, or one hour. 
+
+   ``autoMergerIntervalSecs`` can only be set on config servers.
+
+   This example sets ``autoMergerIntervalSecs`` to 7200 milliseconds, 
+   or two hours, at startup:
+
+   .. code-block:: bash
+
+      mongod --setParameter autoMergeInterval=7200
+
+   During run time, you can set or modify the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, autoMergeInterval: 7200 } )
+
+.. parameter:: autoMergerThrottlingMS
+
+   .. versionadded:: 7.0
+
+   *Type*: integer
+
+   *Default*: 15000
+
+   |mongod-only|
+
+   When {+auto-merge-upper+} is enabled, specifies the minimum amount 
+   time between merges initiated by the {+auto-merge-upper+} on the same 
+   collection, in milliseconds. 
+
+   ``autoMergerThrottlingMS`` can only be set on config servers.
+
+   This example sets ``autoMergerThrottlingMS`` to 60000 milliseconds, 
+   or one minute, at startup:
+
+   .. code-block:: bash
+
+      mongod --setParameter autoMergerThrottlingMS=60000
+
+   During run time, you can set or modify the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, autoMergerThrottlingMS: 60000 } )
+
 .. parameter:: balancerMigrationsThrottlingMs
 
    .. versionadded:: 7.0 (*Also available starting in 6.3.1, 6.0.6, 5.0.18*)