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‎articles/azure-monitor/autoscale/autoscale-diagnostics.md

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@@ -277,8 +277,8 @@ Logged when autoscale attempts to scale in or out.
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"eventName": "AutoscaleAction",
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...
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"eventProperties": "{
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"Description": "The autoscale engine attempting to scale resource '/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/ resourcegroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan' from 2 instances count to 1 instances count.",
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"ResourceName": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/ed-rg-001/providers/Microsoft.Web/ serverFarms/ScaleableAppServicePlan",
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"Description": "The autoscale engine attempting to scale resource '/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan' from 2 instances count to 1 instancescount.",
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"ResourceName": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
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"OldInstancesCount": 2,
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"NewInstancesCount": 1,
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"ActiveAutoscaleProfile": {
@@ -293,15 +293,15 @@ Logged when autoscale attempts to scale in or out.
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"MetricTrigger": {
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"Name": "CpuPercentage",
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"Namespace": "microsoft.web/serverfarms",
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"Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft. Web/serverFarms/ScaleableAppServicePlan",
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"Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
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"ResourceLocation": "West Central US",
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"TimeGrain": "PT1M",
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"Statistic": "Average",
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"TimeWindow": "PT2M",
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"TimeAggregation": "Average",
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"Operator": "GreaterThan",
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"Threshold": 40.0,
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"Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft. Web/serverFarms/ScaleableAppServicePlan",
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"Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
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"MetricType": "MDM",
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"Dimensions": [],
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"DividePerInstance": false
@@ -317,15 +317,15 @@ Logged when autoscale attempts to scale in or out.
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"MetricTrigger": {
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"Name": "CpuPercentage",
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"Namespace": "microsoft.web/serverfarms",
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"Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft. Web/serverFarms/ScaleableAppServicePlan",
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"Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
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"ResourceLocation": "West Central US",
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"TimeGrain": "PT1M",
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"Statistic": "Average",
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"TimeWindow": "PT5M",
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"TimeAggregation": "Average",
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"Operator": "LessThanOrEqual",
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"Threshold": 30.0,
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"Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft. Web/serverFarms/ScaleableAppServicePlan",
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"Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
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"MetricType": "MDM",
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"Dimensions": [],
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"DividePerInstance": false
@@ -357,7 +357,7 @@ Logged following a scale event.
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"eventCategory": "Autoscale",
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"eventName": "GetOperationStatusResult",
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...
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"eventProperties": "{\"OldInstancesCount\":3,\"NewInstancesCount\":2}",
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"eventProperties": "{"OldInstancesCount":3,"NewInstancesCount":2}",
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...
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"activityStatusValue": "Succeeded"
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}
@@ -373,7 +373,8 @@ Logged when autoscale can't determine the value of the metric used in the scale
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"eventCategory": "Autoscale",
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"eventName": "MetricFailure",
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...
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"eventProperties": "{\"Notes\":\"To ensure service availability, Autoscale will scale out the resource to the default capacity if it is greater than the current capacity\"}",
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"eventProperties": "{
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"Notes":"To ensure service availability, Autoscale will scale out the resource to the default capacity if it is greater than the current capacity}",
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...
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"activityStatusValue": "Failed"
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}
@@ -395,20 +396,21 @@ Logged when autoscale can once again determine the value of the metric used in t
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### Predictive Metric Failure
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Logged when autoscale can't calculate predicted scale events due to the metric being unavailable.
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```JSON
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"Properties":{
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"Properties": {
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"eventCategory": "Autoscale",
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"eventName": "PredictiveMetricFailure",
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...
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"eventProperties": "{\"Notes\":\"To ensure service availability, \Autoscale will scale out the resource to the default capacity if it is greater than the current capacity\"}",
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"eventProperties": "{
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"Notes": "To ensure service availability, Autoscale will scale out the resource to the default capacity if it is greater than the current capacity"
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}",
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"activityStatusValue": "Failed"
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}
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}
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```
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### Flapping Occurred
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Logged when autoscale detects a flapping and scales differently to avoid it.
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Logged when autoscale detects flapping could occur, and scales differently to avoid it.
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```JSON
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"Properties":{
@@ -417,11 +419,11 @@ Logged when autoscale detects a flapping and scales differently to avoid it.
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...
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"eventProperties":
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"{"Description":"Scale down will occur with updated instance count to avoid flapping.
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Resource: '/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Web/serverFarms/ ScaleableAppServicePlan'.
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Resource: '/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan'.
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Current instance count: '6',
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Intended new instance count: '1'.
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Actual new instance count: '4'",
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"ResourceName":"/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Web/serverFarms/ ScaleableAppServicePlan",
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"ResourceName":"/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
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"OldInstancesCount":6,
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"NewInstancesCount":4,
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"ActiveAutoscaleProfile":{"Name":"Auto created scale condition",
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"activityStatusValue": "Succeeded"
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}
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```
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### Flapping
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Logged when autoscale detects flapping could occur, and defers scaling in to avoid it.
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```JSON
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"Properties": {
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"eventCategory": "Autoscale",
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"eventName": "Flapping",
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"Description": "{"Cannot scale down due to flapping observed. Resource: '/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Compute/virtualMachineScaleSets/mac2'. Current instance count: '2', Intended new instance count '1'",
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"ResourceName": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Compute/virtualMachineScaleSets/mac2",
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"OldInstancesCount": "2",
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"NewInstancesCount": "2",
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"ActiveAutoscaleProfile": "ActiveAutoscaleProfile": {
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"Name": "Auto created default scale condition",
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"Capacity": {
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"Minimum": "1",
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"Maximum": "2",
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"Default": "1"
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},
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"Rules": [
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{
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"MetricTrigger": {
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"Name": "StorageSuccesses",
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"Namespace": "monitoringbackgroundjob",
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"Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/providers/microsoft.monitor/accounts/MACAzureInsightsPROD",
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"ResourceLocation": "EastUS2",
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"TimeGrain": "PT1M",
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"Statistic": "Average",
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"TimeWindow": "PT10M",
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"TimeAggregation": "Average",
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"Operator": "LessThan",
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"Threshold": 600.0,
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"Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/providers/microsoft.monitor/accounts/MACAzureInsightsPROD",
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"MetricType": "MDM",
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"Dimensions": [],
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"DividePerInstance": false
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},
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"ScaleAction": {
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"Direction": "Decrease",
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"Type": "ChangeCount",
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"Value": "1",
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"Cooldown": "PT5M"
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}
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},
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{
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"MetricTrigger": {
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"Name": "TimeToStartupInMs",
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"Namespace": "armrpclient",
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"Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-123/providers/microsoft.monitor/accounts/MACMetricsRP",
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"ResourceLocation": "eastus2",
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"TimeGrain": "PT1M",
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"Statistic": "Percentile99th",
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"TimeWindow": "PT10M",
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"TimeAggregation": "Average",
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"Operator": "GreaterThan",
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"Threshold": 70.0,
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"Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-123/providers/microsoft.monitor/accounts/MACMetricsRP",
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"MetricType": "MDM",
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"Dimensions": [],
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"DividePerInstance": false
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},
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"ScaleAction": {
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"Direction": "Increase",
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"Type": "ChangeCount",
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"Value": "1",
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"Cooldown": "PT5M"
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}
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}
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]
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}"
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}...
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```
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## Next steps
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* [Troubleshooting Autoscale](./autoscale-troubleshoot.md)
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* [Autoscale Flapping](./autoscale-flapping.md)
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* [Autoscale settings](./autoscale-understanding-settings.md)

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