DOCS-15028 sharding task executor pool min size without restart (#386) (#414)

* DOCS-15028 ShardingTaskExecutorPoolMinSize without restart

* DOCS-15028-ShardingTaskExecutorPoolMinSize-without-restart

Co-authored-by: jason-price-mongodb <[email protected]>

Co-authored-by: jason-price-mongodb <[email protected]>

Author: jason-price-mongodb

source/reference/parameters.txt

@@ -2199,9 +2199,6 @@ Sharding Parameters
    Maximum time that :binary:`~bin.mongos` goes without communication to a
    host before :binary:`~bin.mongos` drops all connections to the host.
 
-   You can only set this parameter during start-up and cannot change
-   this setting using the :dbcommand:`setParameter` database command.
-
    If set, :parameter:`ShardingTaskExecutorPoolHostTimeoutMS` should be
    greater than the sum of
    :parameter:`ShardingTaskExecutorPoolRefreshRequirementMS` and
@@ -2210,10 +2207,21 @@ Sharding Parameters
    :parameter:`ShardingTaskExecutorPoolHostTimeoutMS` to be greater than the
    sum.
 
-   .. code-block:: sh
+   The following example sets
+   :parameter:`ShardingTaskExecutorPoolHostTimeoutMS` to ``120000``
+   during startup:
+
+   .. code-block:: bash
 
       mongos --setParameter ShardingTaskExecutorPoolHostTimeoutMS=120000
 
+   During runtime, you can also set the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, ShardingTaskExecutorPoolHostTimeoutMS: 120000 } )
+
 .. parameter:: ShardingTaskExecutorPoolMaxConnecting
 
    .. versionadded:: 3.6
@@ -2235,13 +2243,21 @@ Sharding Parameters
    If it is greater, :binary:`~bin.mongos` ignores the
    :parameter:`ShardingTaskExecutorPoolMaxConnecting` value.
 
-   You can only set this parameter during start-up and cannot change
-   this setting using the :dbcommand:`setParameter` database command.
+   The following example sets
+   :parameter:`ShardingTaskExecutorPoolMaxConnecting` to ``20``
+   during startup:
 
    .. code-block:: sh
 
       mongos --setParameter ShardingTaskExecutorPoolMaxConnecting=20
 
+   During runtime, you can also set the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, ShardingTaskExecutorPoolMaxConnecting: 20 } )
+
 .. parameter:: ShardingTaskExecutorPoolMaxSize
 
    Type: integer
@@ -2259,12 +2275,20 @@ Sharding Parameters
 
       ShardingTaskExecutorPoolMaxSize * taskExecutorPoolSize
 
-   You can only set this parameter during start-up and cannot change
-   this setting using the :dbcommand:`setParameter` database command.
+   The following example sets
+   :parameter:`ShardingTaskExecutorPoolMaxSize` to ``20``
+   during startup:
 
    .. code-block:: sh
 
-      mongos --setParameter ShardingTaskExecutorPoolMaxSize=4
+      mongos --setParameter ShardingTaskExecutorPoolMaxSize=20
+
+   During runtime, you can also set the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, ShardingTaskExecutorPoolMaxSize: 20 } )
 
    :binary:`~bin.mongos` can have up to ``n`` TaskExecutor connection
    pools, where ``n`` is the number of cores. See
@@ -2289,13 +2313,21 @@ Sharding Parameters
    connections until :parameter:`ShardingTaskExecutorPoolHostTimeoutMS`
    milliseconds pass without any application using that pool.
 
-   You can only set this parameter during start-up and cannot change
-   this setting using the :dbcommand:`setParameter` database command.
+   The following example sets
+   :parameter:`ShardingTaskExecutorPoolMinSize` to ``2``
+   during startup:
 
    .. code-block:: sh
 
       mongos --setParameter ShardingTaskExecutorPoolMinSize=2
 
+   During runtime, you can also set the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, ShardingTaskExecutorPoolMinSize: 2 } )
+
    :binary:`~bin.mongos` can have up to ``n`` TaskExecutor connection
    pools, where ``n`` is the number of cores. See
    :parameter:`taskExecutorPoolSize`.
@@ -2313,19 +2345,27 @@ Sharding Parameters
    Maximum time the :binary:`~bin.mongos` waits before attempting to
    heartbeat a resting connection in the pool.
 
-   You can only set this parameter during start-up and cannot change
-   this setting using the :dbcommand:`setParameter` database command.
-
    If set, :parameter:`ShardingTaskExecutorPoolRefreshRequirementMS` should be
    greater than :parameter:`ShardingTaskExecutorPoolRefreshTimeoutMS`.
    Otherwise, :binary:`~bin.mongos` adjusts the value of
    :parameter:`ShardingTaskExecutorPoolRefreshTimeoutMS` to be less than
    :parameter:`ShardingTaskExecutorPoolRefreshRequirementMS`.
 
-   .. code-block:: sh
+   The following example sets
+   :parameter:`ShardingTaskExecutorPoolRefreshRequirementMS` to
+   ``90000`` during startup:
+
+   .. code-block:: bash
 
       mongos --setParameter ShardingTaskExecutorPoolRefreshRequirementMS=90000
 
+   During runtime, you can also set the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, ShardingTaskExecutorPoolRefreshRequirementMS: 90000 } )
+
 .. parameter:: ShardingTaskExecutorPoolRefreshTimeoutMS
 
    Type: integer
@@ -2337,19 +2377,27 @@ Sharding Parameters
    Maximum time the :binary:`~bin.mongos` waits for a heartbeat before
    timing out the heartbeat.
 
-   You can only set this parameter during start-up and cannot change
-   this setting using the :dbcommand:`setParameter` database command.
-
    If set, :parameter:`ShardingTaskExecutorPoolRefreshTimeoutMS` should be
    less than :parameter:`ShardingTaskExecutorPoolRefreshRequirementMS`.
    Otherwise, :binary:`~bin.mongos` adjusts the value of
    :parameter:`ShardingTaskExecutorPoolRefreshTimeoutMS` to be less than
    :parameter:`ShardingTaskExecutorPoolRefreshRequirementMS`.
 
-   .. code-block:: sh
+   The following example sets
+   :parameter:`ShardingTaskExecutorPoolRefreshTimeoutMS` to
+   ``30000`` during startup:
+
+   .. code-block:: bash
 
       mongos --setParameter ShardingTaskExecutorPoolRefreshTimeoutMS=30000
 
+   During runtime, you can also set the parameter with the
+   :dbcommand:`setParameter` command:
+
+   .. code-block:: javascript
+
+      db.adminCommand( { setParameter: 1, ShardingTaskExecutorPoolRefreshTimeoutMS: 30000 } )
+
 .. parameter:: ShardingTaskExecutorPoolReplicaSetMatching
 
    .. versionadded:: 4.2