adding wait time note

Author: hrasheed-msft

articles/hdinsight/hdinsight-cluster-management-best-practices.md

@@ -27,6 +27,9 @@ Learn best practices for managing HDInsight clusters.
 | cURL | [Create Apache Hadoop clusters using the Azure REST API](./hdinsight-hadoop-create-linux-clusters-curl-rest.md) |
 | SDKs (.NET, Python, Java) | [.NET](https://docs.microsoft.com/dotnet/api/overview/azure/hdinsight?view=azure-dotnet), [Python](https://docs.microsoft.com/python/api/overview/azure/hdinsight?view=azure-python), [Java](https://docs.microsoft.com/java/api/overview/azure/hdinsight?view=azure-java-stable), [Go](https://docs.microsoft.com/azure/hdinsight/hdinsight-go-sdk-overview) |
 
+> [Note!]
+> If you are creating a cluster and re-using the cluster name from a previously created cluster, wait until the previous cluster deletion is completed before creating your cluster.
+
 ## How do I customize HDInsight clusters?
 
 | Option | Documents |