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title description author ms.author ms.reviewer ms.service services ms.topic ms.date
Check the health of an Azure Data Explorer cluster
This article describes steps to determine if your Azure Data Explorer cluster is healthy.
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09/24/2018

Check the health of an Azure Data Explorer cluster

There are several factors that impact the health of an Azure Data Explorer cluster, including CPU, memory, and the disk subsystem. This article shows some basic steps you can take to gauge the health of a cluster.

  1. Sign in to https://dataexplorer.azure.com.

  2. In the left pane, select your cluster, and run the following command.

    .show diagnostics
| project IsHealthy

    An output of 1 is healthy; an output of 0 is unhealthy.

  3. Sign into the Azure portal, and navigate to your cluster.

  4. Under Monitoring, select Metrics, then select Keep Alive, as shown in the following image. An output close to 1 means a healthy cluster.

    Cluster Keep Alive metric

  5. It's possible to add other metrics to the chart. Select the chart then Add metric. Select another metric - this example shows CPU.

    Add metric

  6. If you need assistance diagnosing issues with the health of a cluster, please open a support request in the Azure portal.