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title: Automatic stop of inactive clusters in Azure Data Explorer
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description: Learn when your cluster will be stopped using the Automatic stop feature, and how to enable/disable the Automatic stop.
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description: Learn when your cluster is due to stop running using the Automatic stop feature, and how to enable/disable the Automatic stop.
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ms.reviewer: orhasban
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ms.topic: how-to
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ms.date: 11/03/2021
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ms.date: 12/08/2025
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---
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# Automatic stop of inactive Azure Data Explorer clusters
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# Configure automatic stop of inactive Azure Data Explorer clusters
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Azure Data Explorer clusters that have been *inactive* for a specified time interval are automatically stopped. Inactivity is defined as clusters that haven't had any data ingestion or queries in the past 5 days. The interval is fixed at 5 days and cannot be changed.
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Azure Data Explorer clusters that are *inactive* for a specified time interval stop automatically. Inactivity means clusters with no data ingestion or queries in the past 5 days. The interval is fixed at 5 days and can't be changed.
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Cluster behavior isn't automatically resumed. To restart the cluster, do so manually.
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Cluster behavior doesn't resume automatically. Restart the cluster manually.
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> [!NOTE]
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> Cluster types listed below are not automatically stopped: </br>
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> The following cluster types aren't stopped automatically: </br>
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>
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> * Leader clusters. For more information, see [follower databases](follower.md).
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> * Clusters deployed in a Virtual Network
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> *[Start-for-free](start-for-free.md) clusters
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> * Clusters where the [Auto-Stop setting](auto-stop-clusters.md#set-auto-stop-settings-while-creating-a-new-cluster) is turned off
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> * Azure Synapse Data Explorer pools
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> * Clusters where the [Auto-Stop setting](auto-stop-clusters.md#configure-auto-stop-while-creating-a-new-cluster) is turned off
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## Manage Automatic stop behavior on your cluster
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## Manage automatic stop behavior on your cluster
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Azure Data Explorer clusters are created by default with the cluster property of `enableAutoStop = true`. This property can be set or altered either on cluster creation or post creation.
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Azure Data Explorer clusters are created by default with the cluster property `enableAutoStop = true`. You can set or change this property during or after cluster creation.
Learn more in [Azure Data Explorer cluster request body](/rest/api/azurerekusto/clusters/createorupdate#request-body).
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### Set Auto-Stop settings while creating a new cluster
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##Configure auto-stop while creating a new cluster
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1.Follow the steps in [Create an Azure Data Explorer cluster and database](create-cluster-and-database.md).
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1.In the Azure portal, follow the steps in [create an Azure Data Explorer cluster and database](create-cluster-and-database.md).
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1. In the **Configurations** tab, select **Auto-Stop cluster** > **On**.
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:::image type="content" source="media/auto-stop-clusters/auto-stop-cluster-creation.png" alt-text="Screenshot of auto-stop configuration.":::
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:::image type="content" source="media/auto-stop-clusters/auto-stop-cluster-creation.png" alt-text="Screenshot of auto-stop configuration.":::
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###Modify settings on an existing cluster
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## Modify settings on an existing cluster
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To enable/disable Auto-Stop cluster after cluster was created:
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To enable or disable Auto-Stop cluster after the cluster is created:
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1. Sign into the [Azure portal](https://ms.portal.azure.com/).
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1.Browse to your Azure Data Explorer cluster.
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1. Sign in to the [Azure portal](https://ms.portal.azure.com/).
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1.Go to your Azure Data Explorer cluster.
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1. In **Settings**, select **Configurations**.
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1. In the **Configurations** pane, select **On**/**Off** to enable/disable **Auto-Stop cluster**.
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1. In the **Configurations** pane, select **On** or **Off** to enable or disable **Auto-Stop cluster**.
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1. Select **Save**.
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:::image type="content" source="media/auto-stop-clusters/auto-stop-cluster-update.png" alt-text="Screenshot of auto-stop configuration in Azure portal.":::
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:::image type="content" source="media/auto-stop-clusters/auto-stop-cluster-update.png" alt-text="Screenshot of auto-stop configuration in the Azure portal.":::
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## Verify Auto-Stop using the Activity log
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## Verify auto-stop using the activity log
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When a cluster is automatically stopped, an Activity log is sent. To verify when and how the cluster was stopped, use the following steps:
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1. Sign into the [Azure portal](https://ms.portal.azure.com/).
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1. Browse to Azure Data Explorer cluster.
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1.On the left pane, select **Activity log**.
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1.Choose a timespan.
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1. Under **Operation name**, look for**Stop Clusters**.
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1.In the left pane, select **Activity log**.
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1.Select a timespan.
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1. Under **Operation name**, find**Stop Clusters**.
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:::image type="content" source="media/auto-stop-clusters/auto-stop-cluster-activity-log.png" alt-text="Screenshot of activity log.":::
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:::image type="content" source="media/auto-stop-clusters/auto-stop-cluster-activity-log.png" alt-text="Screenshot of the activity log.":::
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