Merge pull request #190257 from Clare-Zheng82/0301-Add_HDInsight_TSG_to_Activity_Troubleshoot_doc

Update Activity troubleshooting doc to add HDInsight TSG

Author: PRMerger18

articles/data-factory/data-factory-troubleshoot-guide.md

@@ -7,7 +7,7 @@ ms.service: data-factory
 ms.subservice: troubleshooting
 ms.custom: synapse
 ms.topic: troubleshooting
-ms.date: 01/28/2022
+ms.date: 03/03/2022
 ms.author: abnarain
 ---
 
@@ -966,7 +966,19 @@ The following table applies to Azure Batch.
 
     :::image type="content" source="./media/connector-troubleshoot-guide/system-trust-store-setting.png" alt-text="Uncheck Use System Trust Store":::
 
-## Web Activity
+### HDI activity stuck in preparing for cluster  
+
+If the HDI activity is stuck in preparing for cluster, follow the guidelines below:  
+
+1. Make sure the timeout is greater than what is described below and wait for the execution to complete or until it is timed out, and wait for Time To Live (TTL) time before submitting new jobs.  
+
+    *The max default time that it takes to spin up a cluster is 2 hours, and if you have any init script, it will add up, up to another 2 hours.*
+
+2. Make sure the storage and HDI are provisioned in the same region.
+3. Make sure that the service principal used for accessing the HDI cluster is valid.
+4. If the issue still persists, as a workaround, delete the HDI linked service and re-create it with a new name.
+
+## Web Activity  
 
 ### Error code: 2128