Add note about `loop_control.extended` memory impact (#75759)

* Add note about `loop_control.extended` memory impact * moar correct
3 years ago · 5183a2e585
parent 65b5472ad1
commit 5183a2e585
1 changed files with 2 additions and 0 deletions
--- a/docs/docsite/rst/user_guide/playbooks_loops.rst
+++ b/docs/docsite/rst/user_guide/playbooks_loops.rst
@ -410,6 +410,8 @@ Variable                    Description
      loop_control:
        extended: yes

+.. note:: When using ``loop_control.extended`` more memory will be utilized on the control node. This is a result of ``ansible_loop.allitems`` containing a reference to the full loop data for every loop. When serializing the results for display in callback plugins within the main ansible process, these references may be dereferenced causing memory usage to increase.
+
 Accessing the name of your loop_var
 -----------------------------------
 .. versionadded:: 2.8