Data Explorer

I am not able to review Data Explorer analytics. Is this a known issue with others?

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2 answers

  1. Pilladi Padma Sai Manisha 10,190 Reputation points • Microsoft External Staff • Moderator

    Hi Azure, Danielle Walsh,

    It sounds like you’re unable to pull up the analytics/monitoring view for your Azure Data Explorer cluster. Typically this boils down to one of a few common mis-configurations:

    1. Azure Data Explorer Insights not enabled
      • Go to your cluster in the Azure portal, click “Monitoring” → “Insights” and make sure the feature is turned on.
    2. No diagnostic logs or metrics configured
    3. Viewing the wrong blade or missing permissions
      • Make sure you’re in the Azure Monitor → Insights blade (not the Data Explorer query pane).
      • Verify you have at least “Monitoring Reader” or higher on the workspace/resource group.
    4. Synapse Data Explorer Pool specifics
      • If you’re using an ADX pool in Synapse, ensure you’ve explicitly selected the cluster URI in the monitoring dashboard. That step can prevent the UI from listing any metrics.
      • Related fix: not seeing tables/metrics until cluster URI is specified in the dashboard.

    If none of the above apply or you’re still stuck, could you help me with a bit more info?

    Follow-up questions

    1. Are you on a standalone ADX cluster or an ADX pool inside Azure Synapse?
    2. Which blade are you clicking in the portal (Azure Monitor → Insights or the Data Explorer query blade)?
    3. Do you see any errors or just a blank chart/list of metrics? A screenshot would help.
    4. Have you set up diagnostic settings on the cluster already? If so, where are they sending logs/metrics?
    5. What role/permissions do you have on the cluster and the Log Analytics workspace?

    Hope this gets you unblocked—let me know the answers above and we’ll drill down further!

    References

    1. Pilladi Padma Sai Manisha 10,190 Reputation points • Microsoft External Staff • Moderator

      Hi
      Following up to see if the below answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

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  2. AI answer

    There are known scenarios where Azure Data Explorer analytics (Insights, dashboards, or Data Explorer-based views) show no data or appear unavailable, but they are typically configuration or health issues rather than a global outage.

    Check the following common causes:

    1. Verify diagnostic logs are enabled
    • If Usage, Tables, Cache, or similar analytics views are empty, diagnostic logs might not be enabled for the cluster.
    • For each Azure Data Explorer cluster that should appear in analytics/Insights, enable diagnostic logs and send them to a Log Analytics workspace.
    • Ensure at least these categories are enabled: Command, Query, TableDetails, and TableUsageStatistics.
    • Data isn’t retroactive: analytics will only start populating after logs are enabled and activity occurs on the cluster.
    1. Allow time for data to appear
    • Even after enabling logs, data can take from hours up to a day to appear, depending on cluster activity volume.
    1. Check subscription and resource selection
    • In workbooks/Insights or Grafana dashboards, ensure the correct subscription, resource group, cluster, and workspace are selected.
    • If a selected subscription or resource group doesn’t contain any Azure Data Explorer clusters, analytics views will be empty.
    1. Confirm cluster health
    • In the Azure portal, open the cluster’s Resource health:
      • Available: cluster is healthy.
      • Degraded: ingestion or performance issues may affect analytics completeness.
      • Unavailable: queries/ingestion (and thus analytics) may fail; if this persists, contact support.
      • Unknown: Resource Health hasn’t received data for >10 minutes or the cluster is stopped; analytics may not update until the state changes.
    1. If using Azure Managed Grafana
    • Open the Azure Managed Grafana endpoint and a pre-provisioned dashboard such as Azure Data Explorer Cluster Resource Insights.
    • Ensure dropdowns at the top (data source, subscription, resource group, namespace, resource, workspace) are correctly populated with a resource group that actually contains an Azure Data Explorer cluster.
    • Verify the Azure Data Explorer data source configuration: Azure cloud, Cluster URL, Directory (tenant) ID, Application (client) ID, and Client secret must be correct, and Microsoft Entra ID authentication must be properly set up.
    • Ensure the Azure Data Explorer instance firewall does not block access from Azure Managed Grafana; the database must be reachable from the public internet.

    If, after these checks, analytics are still unavailable, review Resource Health for ongoing platform issues and then open a support request if the cluster remains degraded or unavailable.

    References:

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