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Copy file name to clipboardExpand all lines: includes/azure-monitor-limits-metrics.md
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@@ -35,29 +35,65 @@ Prometheus queries are created by using PromQL and can be authored in either Azu
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| Data retention | 18 months.<br>This limit can't be increased.
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| Query time range | 32 days between the start time and end time of your PromQL query.<br>This limit can't be increased. |
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| Query data limits | Over a 30-second window:<br>0.5-GB data returned per Azure Monitor workspace for client traffic. <br>1-GB data returned per Azure Monitor workspace for recording rules traffic.|
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| Query time series per metric | 150,000 time series. |
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| Query time series per metric | 500,000 time series. |
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| Query samples returned | 50,000,000 samples per query. |
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| Minimum query step size<br>with time range >= 48 hours | 60 seconds. |
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**Query data limits**<br>
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Based on query time range and request type over a 30-second window (Interactive query):
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| Limit | Value |
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|:---|:---|
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| Throttling window lookup length | 30 seconds |
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| Data returned per Azure Monitor workspace | 0.5 GB |
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Based on query time range and request type over a 30-second window (non-interactive query):
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| Limit | Value |
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|:---|:---|
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| Throttling window lookup length | 3 minutes |
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| Data returned per Azure Monitor workspace | 1 GB |
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**Query pre-parsing limits**<br>
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Based on query time range and request type over a 30-second window.
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Based on query time range and request type over a 30-second window (Interactive query):
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| Limit | Value |
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|:---|:---|
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| Query hours per user (Azure Active Directory, managed identity, Azure Managed Grafana workspace) | 30,000 |
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| Query hours per Azure Monitor workspace | 60,000 |
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| Query hours per Azure tenant | 600,000 |
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Based on query time range and request type over a 3-minute window (Non-interactive query):
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| Limit | Value |
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|:---|:---|
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| Query hours per Azure Monitor workspace | 60,000 |
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| Query hours per Azure tenant | 600,000 |
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**Query post-parsing limits**<br>
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Based on query time range and range vectors in query over a 30-second window.
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Based on query time range and range vectors in query over a 30-second window (Interactive query):
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| Limit | Value |
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| Query hours per user (Azure Active Directory, managed identity, Azure Managed Grafana workspace) | 2,000,000 |
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| Query hours per Azure Monitor workspace | 2,000,000 |
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| Query hours per Azure tenant | 20,000,000 |
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Based on query time range and range vectors in query over a 3-minute window (Non-interactive query):
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| Limit | Value |
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| Query hours per Azure Monitor workspace | 2,000,000 |
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| Query hours per Azure tenant | 20,000,000 |
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**Query cost throttling limits**<br>
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| Limit | Value |
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|:---|:---|
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| Maximum query cost per query | 15000 |
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| Maximum query cost for recording rules query | 3000 |
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#### Alert and recording rules
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Prometheus alert rules and recording rules are defined in PromQL. They're performed on the managed Ruler service as part of Azure Monitor managed service for Prometheus.
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