restoring data-explorer-limits include

Author: SyntaxC4

includes/data-explorer-limits.md

@@ -0,0 +1,24 @@
+---
+author: ilayrn
+ms.service: data-explorer
+ms.topic: include
+ms.date: 01/20/2020
+ms.author: ilayr
+---
+
+The following table describes the maximum limits for Azure Data Explorer clusters.
+
+| Resource | Limit |
+| --- | --- |
+| Clusters per region per subscription | 20 |
+| Instances per cluster | 1000 | 
+| Number of databases in a cluster | 10,000 |
+| Number of attached database configurations in a cluster | 70 |
+
+The following table describes the limits on management operations performed on Azure Data Explorer clusters.
+
+| Scope | Operation | Limit |
+| --- | --- | --- |
+| Cluster | read (for example, get a cluster) | 500 per 5 minutes |
+| Cluster | write (for example, create a database) | 1000 per hour |
+