[GitHub] [dolphinscheduler] Radeity commented on a diff in pull request #14127: add task plugin dynamic

["Radeity (via GitHub)" <gi...@apache.org>]

Radeity commented on code in PR #14127:
URL: https://github.com/apache/dolphinscheduler/pull/14127#discussion_r1207772168


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docs/docs/en/guide/task/dynamic.md:
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@@ -0,0 +1,77 @@
+# Dynamic Task
+
+## Overview
+
+Dynamic task can input multiple parameter lists, calculate all parameter combinations through Cartesian product, and then execute each parameter combination as a sub-workflow node.
+
+For example, we have a workflow with two input parameters, a, b.
+
+We can use the dynamic node to define this workflow definition as a node, and then enter the parameter list
+
+- Parameter a: a1, a2
+- Parameter b: b1, b2
+
+Then the dynamic node will calculate four parameter combinations, which are
+- a1, b1
+- a1, b2
+- a2, b1
+- a2, b2
+
+Then execute these four parameter combinations as the startup parameters of the sub-workflow node, and a total of four sub-workflow nodes are generated.
+
+## Create Task
+
+- Click `Project -> Management-Project -> Name-Workflow Definition`, and click the "Create Workflow" button to enter the
+  DAG editing page.
+- Drag from the toolbar <img src="../../../../img/tasks/icons/dynamic.png" width="15"/> task node to canvas.
+
+The task definition is shown in the following figure:
+
+![dynamic_definition](../../../../img/tasks/demo/dynamic_definition.png)
+
+## Task Parameters
+
+[//]: # (TODO: use the commented anchor below once our website template supports this syntax)
+[//]: # (- Please refer to [DolphinScheduler Task Parameters Appendix]&#40;appendix.md#default-task-parameters&#41; `Default Task Parameters` section for default parameters.)
+
+- Please refer to [DolphinScheduler Task Parameters Appendix](appendix.md) `Default Task Parameters` section for default parameters.
+
+|        **Task Parameters**        |                                                                                                                         **Description**                                                                                                                          |
+|-----------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Child Node                        | Select the workflow definition of the sub-workflow. You can jump to the workflow definition of the selected sub-workflow by entering the sub-node in the upper right corner.                                                                                     |
+| max num of sub workflow isntances | The maximum number of sub-workflow instances dynamically generated. After exceeding this upper limit, the dynamically generated sub-workflow instances will no longer be executed.                                                                               |

Review Comment:
   isntances -> instances



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