Create an Azure Data Explorer cluster and database
Azure Data Explorer is a fast, fully managed data analytics service for real-time analysis on large volumes of data streaming from applications, websites, IoT devices, and more. To use Azure Data Explorer, you first create a cluster, and create one or more databases in that cluster. Then, you can ingest (load) data into a database and run queries against it.
In this article, you'll learn how to create a cluster and a database using either C#, Python, Go, the Azure CLI, PowerShell, or an Azure Resource Manager (ARM) template. To learn how to create a cluster and database using the Azure portal, see Quickstart: Create an Azure Data Explorer cluster and database.
For code samples based on previous SDK versions, see the archived article.
Prerequisites
Prerequisites by method of cluster and database creation:
- An Azure subscription. Create a free Azure account.
- Visual Studio 2022 Community Edition. Turn on Azure development during the Visual Studio setup.
- Install the Microsoft.Azure.Management.Kusto NuGet package.
- A Microsoft Entra application and service principal that can access resources. Save the Directory (tenant) ID, Application ID, and Client Secret.
Create an Azure Data Explorer cluster
This section guides you through the process of creating an Azure Data Explorer cluster. Choose the relevant tab for your preferred method to create the cluster.
Create your cluster by using the following code:
var tenantId = "xxxxxxxx-xxxxx-xxxx-xxxx-xxxxxxxxx"; //Directory (tenant) ID var clientId = "xxxxxxxx-xxxxx-xxxx-xxxx-xxxxxxxxx"; //Application ID var clientSecret = "PlaceholderClientSecret"; //Client Secret var subscriptionId = "xxxxxxxx-xxxxx-xxxx-xxxx-xxxxxxxxx"; var credentials = new ClientSecretCredential(tenantId, clientId, clientSecret); var resourceManagementClient = new ArmClient(credentials, subscriptionId); var resourceGroupName = "testrg"; var subscription = await resourceManagementClient.GetDefaultSubscriptionAsync(); var resourceGroup = (await subscription.GetResourceGroupAsync(resourceGroupName)).Value; var clusters = resourceGroup.GetKustoClusters(); var clusterName = "mykustocluster"; var skuName = KustoSkuName.StandardE8adsV5; var skuTier = KustoSkuTier.Standard; var capacity = 5; var clusterData = new KustoClusterData( location: AzureLocation.CentralUS, sku: new KustoSku(skuName, skuTier) { Capacity = capacity } ); await clusters.CreateOrUpdateAsync(WaitUntil.Completed, clusterName, clusterData);
Setting Suggested value Field description clusterName mykustocluster The desired name of your cluster. skuName Standard_E8ads_v5 The SKU that will be used for your cluster. tier Standard The SKU tier. capacity number The number of instances of the cluster. resourceGroupName testrg The resource group name where the cluster will be created. Note
Create a cluster is a long running operation, so it's highly recommended to use CreateOrUpdateAsync, instead of CreateOrUpdate.
Run the following command to check whether your cluster was successfully created:
clusterData = (await clusters.GetAsync(clusterName)).Value.Data;
Confirm the successful creation of the cluster by verifying the result contains
provisioningState
asSucceeded
.
Create an Azure Data Explorer database
In this section, you'll create a database within the cluster created in the previous section.
Create your database by using the following code:
var cluster = (await clusters.GetAsync(clusterName)).Value; var databases = cluster.GetKustoDatabases(); var databaseName = "mykustodatabase"; var softDeletePeriod = TimeSpan.FromDays(3650); var hotCachePeriod = TimeSpan.FromDays(3650); var databaseData = new KustoReadWriteDatabase { Location = clusterData.Location, SoftDeletePeriod = softDeletePeriod, HotCachePeriod = hotCachePeriod }; await databases.CreateOrUpdateAsync(WaitUntil.Completed, databaseName, databaseData);
Note
If you are using C# version 2.0.0 or below, use Database instead of ReadWriteDatabase.
Setting Suggested value Field description clusterName mykustocluster The name of your cluster where the database will be created. databaseName mykustodatabase The name of your database. resourceGroupName testrg The resource group name where the cluster will be created. softDeletePeriod 3650:00:00:00 The amount of time that data will be kept available to query. hotCachePeriod 3650:00:00:00 The amount of time that data will be kept in cache. Run the following command to see the database that you created:
databaseData = (await databases.GetAsync(databaseName)).Value.Data as KustoReadWriteDatabase;
Next step
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