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Merge pull request #263981 from maud-lv/ml-limits
Add throttling information
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‎articles/managed-grafana/known-limitations.md

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@@ -4,7 +4,7 @@ titlesuffix: Azure Managed Grafana
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description: Learn about current technical or feature limitations you may encounter in the Azure Managed Grafana service.
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ms.service: managed-grafana
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ms.topic: troubleshooting
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ms.date: 10/18/2023
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ms.date: 01/23/2024
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ms.author: malev
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ms.custom: engagement-fy23
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author: maud-lv
@@ -41,20 +41,27 @@ Azure Managed Grafana has the following known limitations:
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| Team sync with Microsoft Entra ID | ❌ | ❌ |
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| Enterprise plugins | ❌ | ❌ |
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## Quotas
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## Throttling limits and quotas
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The following quotas apply to the Essential (preview) and Standard plans.
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| Limit | Description | Essential | Standard |
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|--------------------------------------|-----------------------------------------------------------------------------------------------------|-----------------|------------------|
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| Alert rules | Maximum number of alert rules that can be created | Not supported | 500 per instance |
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| Dashboards | Maximum number of dashboards that can be created | 20 per instance | Unlimited |
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| Data sources | Maximum number of datasources that can be created | 5 per instance | Unlimited |
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| API keys | Maximum number of API keys that can be created | 2 per instance | 100 per instance |
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| Data query timeout | Maximum wait duration for the reception of data query response headers, before Grafana times out | 200 seconds | 200 seconds |
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| Data source query size | Maximum number of bytes that are read/accepted from responses of outgoing HTTP requests | 80 MB | 80 MB |
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| Render image or PDF report wait time | Maximum duration for an image or report PDF rendering request to complete before Grafana times out. | Not supported | 220 seconds |
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| Instance count | Maximum number of instances in a single subscription per Azure region | 1 | 20 |
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| Limit | Description | Essential | Standard |
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|--------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------|------------------------|
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| Alert rules | Maximum number of alert rules that can be created. | Not supported | 500 per instance |
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| Dashboards | Maximum number of dashboards that can be created. | 20 per instance | Unlimited |
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| Data sources | Maximum number of datasources that can be created. | 5 per instance | Unlimited |
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| API keys | Maximum number of API keys that can be created. | 2 per instance | 100 per instance |
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| Data query timeout | Maximum wait duration for the reception of data query response headers, before Grafana times out. | 200 seconds | 200 seconds |
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| Data source query size | Maximum number of bytes that are read/accepted from responses of outgoing HTTP requests. | 80 MB | 80 MB |
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| Render image or PDF report wait time | Maximum duration for an image or report PDF rendering request to complete before Grafana times out. | Not supported | 220 seconds |
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| Instance count | Maximum number of instances in a single subscription per Azure region. | 1 | 20 |
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| Requests per IP | Maximum number of requests per IP per second. | 90 requests per second | 90 requests per second |
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| Requests per HTTP host | Maximum number of requests per HTTP host per second. The HTTP host stands for the Host header in incoming HTTP requests, which can describe each unique host client. | 45 requests per second | 45 requests per second |
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Each data source also has its own limits that can be reflected in Azure Managed Grafana dashboards, alerts and reports. We recommend that you research these limits in the documentation of each data source provider. For instance:
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* Refer to [Azure Monitor](/azure/azure-monitor/service-limits) to learn about Azure Monitor service limits including alerts, Prometheus metrics, data collection, logs and more.
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* Refer to [Azure Data Explorer](/azure/data-explorer/kusto/concepts/querylimits) to learn about Azure Data Explorer service limits.
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## Next steps
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‎articles/managed-grafana/overview.md

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## Quotas
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Different quotas apply to Azure Managed Grafana service instances depending on their service tiers. For a list of the quotas that apply to the Essential (preview) and Standard pricing plans, see [quotas](known-limitations.md#quotas).
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Different quotas apply to Azure Managed Grafana service instances depending on their service tiers. For a list of the quotas that apply to the Essential (preview) and Standard pricing plans, see [quotas](known-limitations.md#throttling-limits-and-quotas).
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## Next steps
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