Pengaturan diagnostik dalam skala otomatis

Artikel
05/08/2024

Skala otomatis memiliki dua kategori log dan sekumpulan metrik yang dapat diaktifkan melalui tab Pengaturan diagnostik di halaman Pengaturan skala otomatis.

Dua kategori tersebut adalah:

Evaluasi Skala Otomatis berisi data log yang berkaitan dengan evaluasi aturan.
Data log Tindakan Skala Skala Otomatis yang berkaitan dengan setiap peristiwa skala.

Untuk informasi selengkapnya tentang metrik skala otomatis, lihat dokumen Metrik yang didukung.

Anda dapat mengirim log dan metrik ke berbagai tujuan:

Ruang Kerja Log Analytics
Akun penyimpanan
Event hubs
Solusi mitra

Untuk informasi selengkapnya tentang diagnostik, lihat Pengaturan diagnostik di Azure Monitor.

Jalankan riwayat

Lihat riwayat aktivitas skala otomatis Anda pada tab Jalankan riwayat . Tab Jalankan riwayat menyertakan bagan jumlah instans sumber daya dari waktu ke waktu dan entri log aktivitas sumber daya untuk skala otomatis.

Skema log sumber daya

Contoh berikut adalah format umum untuk log sumber daya skala otomatis dengan contoh data yang disertakan. Tidak semua contoh dibentuk dengan benar JSON karena mungkin menyertakan daftar yang valid untuk bidang tertentu.

Gunakan log ini untuk memecahkan masalah dalam skala otomatis. Untuk informasi selengkapnya, lihat Memecahkan masalah skala otomatis.

Catatan

Meskipun log dapat merujuk ke tindakan "tingkatkan" dan "turunkan skala", tindakan aktual yang diambil adalah penyempurnaan atau peluasan skala.

Log evaluasi skala otomatis

Skema berikut muncul di log evaluasi skala otomatis.

Evaluasi profil

Dicatat saat skala otomatis pertama kali melihat profil skala otomatis:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": ["FixedDateProfileEvaluation", "RecurrentProfileEvaluation", "DefaultProfileEvaluation"],
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "profile": "defaultProfile",
    "profileSelected": [true, false]
  }
}

Evaluasi cool-down profil

Dicatat saat skala otomatis mengevaluasi apakah seharusnya tidak menskalakan karena periode pendinginan:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "ScaleRuleCooldownEvaluation",
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "selectedProfile": "defaultProfile",
    "scaleDirection": ["Increase", "Decrease"]
    "lastScaleActionTime": "2018-09-10 18:08:00.6132593",
    "cooldown": "00:30:00",
    "evaluationTime": "2018-09-10 18:11:00.6132593",
    "skipRuleEvaluationForCooldown": true
  }
}

Evaluasi aturan

Dicatat saat skala otomatis pertama kali mulai mengevaluasi aturan skala tertentu:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "ScaleRuleEvaluation",
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "metricName": "Percentage CPU",
    "metricNamespace": "",
    "timeGrain": "00:01:00",
    "timeGrainStatistic": "Average",
    "timeWindow": "00:10:00",
    "timeAggregationType": "Average",
    "operator": "GreaterThan",
    "threshold": 70,
    "observedValue": 25,
    "estimateScaleResult": ["Triggered", "NotTriggered", "Unknown"]
  }
}

Evaluasi metrik

Dicatat saat skala otomatis mengevaluasi metrik yang digunakan untuk memicu tindakan skala:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "MetricEvaluation",
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "metricName": "Percentage CPU",
    "metricNamespace": "",
    "timeGrain": "00:01:00",
    "timeGrainStatistic": "Average",
    "startTime": "2018-09-10 18:00:00.43833793",
    "endTime": "2018-09-10 18:10:00.43833793",
    "data": [0.33333333333333331,0.16666666666666666,1.0,0.33333333333333331,2.0,0.16666666666666666,9.5]
  }
}

Evaluasi jumlah instans

Dicatat ketika skala otomatis mengevaluasi jumlah instans yang sudah berjalan sebagai persiapan untuk memutuskan apakah harus memulai lebih banyak, mematikan beberapa, atau tidak melakukan apa pun:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "InstanceCountEvaluation",
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "currentInstanceCount": 20,
    "minimumInstanceCount": 15,
    "maximumInstanceCount": 30,
    "defaultInstanceCount": 20
  }
}

Evaluasi tindakan skala

Dicatat ketika skala otomatis mulai dievaluasi jika tindakan skala harus terjadi:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "ScaleActionOperationEvaluation",
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "lastScaleActionOperationId": "378ejr-7yye-892d-17dd-92ndijfe1738",
    "lastScaleActionOperationStatus": ["InProgress", "Timeout"]
	"skipCurrentAutoscaleEvaluation": [true, false]
  }
}

Evaluasi pembaruan instans

Dicatat saat skala otomatis memperbarui jumlah instans komputasi yang berjalan, baik ke atas atau ke bawah:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "InstanceUpdateEvaluation",
  "category": "AutoscaleEvaluations",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "currentInstanceCount": 20,
    "newInstanceCount": 21,
    "shouldUpdateInstance": [true, false],
    "reason": ["Scale down action triggered", "Scale up to default instance count", ...]
  }
}

Log tindakan skala otomatis

Skema berikut muncul di log evaluasi skala otomatis.

Tindakan skala

Dicatat saat skala otomatis memulai tindakan skala, baik ke atas atau ke bawah:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "InstanceScaleAction",
  "category": "AutoscaleScaleActions",
  "resultType": ["Succeeded", "InProgress", "Failed"],
  "resultDescription": ["Create async operation job failed", ...]
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "currentInstanceCount": 20,
    "newInstanceCount": 21,
    "scaleDirection": ["Increase", "Decrease"],
    ["createdAsyncScaleActionJob": [true, false],]
    ["createdAsyncScaleActionJobId": "378ejr-7yye-892d-17dd-92ndijfe1738",]
  }
}

Pelacakan tindakan skala

Dicatat pada interval yang berbeda dari tindakan skala instans:

{
  "time": "2018-09-10 18:12:00.6132593",
  "resourceId": "/SUBSCRIPTIONS/BA13C41D-C957-4774-8A37-092D62ACFC85/RESOURCEGROUPS/AUTOSCALETRACKING12042017/PROVIDERS/MICROSOFT.INSIGHTS/AUTOSCALESETTINGS/DEFAULTSETTING",
  "operationName": "InstanceScaleAction",
  "category": "AutoscaleScaleActions",
  "correlationId": "e8f67045-f381-445d-bc2d-eeff81ec0d77",
  "property": {
    "targetResourceId": "/subscriptions/d45c994a-809b-4cb3-a952-e75f8c488d23/resourceGroups/RingAhoy/providers/Microsoft.Web/serverfarms/ringahoy",
    "scaleActionOperationId": "378ejr-7yye-892d-17dd-92ndijfe1738",
    "scaleActionOperationStatus": ["InProgress", "Timeout", "Canceled", ...],
    "scaleActionMessage": ["Scale action is inprogress", ...]
  }
}

Log aktivitas

Peristiwa berikut dicatat ke log aktivitas dengan CategoryValue :Autoscale

Peningkatan skala otomatis dimulai
Peningkatan skala otomatis selesai
Penurunan skala otomatis dimulai
Penurunan skala otomatis selesai
Peningkatan skala otomatis prediktif dimulai
Peningkatan skala otomatis prediktif selesai
Kegagalan metrik
Pemulihan metrik
Kegagalan metrik prediktif
Flapping

Ekstrak dari setiap nama peristiwa log, memperlihatkan bagian elemen yang Properties relevan, ditampilkan berikutnya.

Tindakan skala otomatis

Dicatat ketika skala otomatis mencoba untuk masuk atau keluar:

{
   "eventCategory": "Autoscale",
    "eventName": "AutoscaleAction",
    ...
    "eventProperties": "{
        "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.",
        "ResourceName": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
        "OldInstancesCount": 2,
        "NewInstancesCount": 1,
        "ActiveAutoscaleProfile": {
            "Name": "Default scale condition",
            "Capacity": {
                "Minimum": "1",
                "Maximum": "5",
                "Default": "1"
            },
            "Rules": [
                {
                    "MetricTrigger": {
                        "Name": "CpuPercentage",
                        "Namespace": "microsoft.web/serverfarms",
                        "Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
                        "ResourceLocation": "West Central US",
                        "TimeGrain": "PT1M",
                        "Statistic": "Average",
                        "TimeWindow": "PT2M",
                        "TimeAggregation": "Average",
                        "Operator": "GreaterThan",
                        "Threshold": 40.0,
                        "Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
                        "MetricType": "MDM",
                        "Dimensions": [],
                        "DividePerInstance": false
                    },
                    "ScaleAction": {
                        "Direction": "Increase",
                        "Type": "ChangeCount",
                        "Value": "1",
                        "Cooldown": "PT3M"
                    }
                },
                {
                    "MetricTrigger": {
                        "Name": "CpuPercentage",
                        "Namespace": "microsoft.web/serverfarms",
                        "Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
                        "ResourceLocation": "West Central US",
                        "TimeGrain": "PT1M",
                        "Statistic": "Average",
                        "TimeWindow": "PT5M",
                        "TimeAggregation": "Average",
                        "Operator": "LessThanOrEqual",
                        "Threshold": 30.0,
                        "Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/ed-rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
                        "MetricType": "MDM",
                        "Dimensions": [],
                        "DividePerInstance": false
                    },
                    "ScaleAction": {
                        "Direction": "Decrease",
                        "Type": "ExactCount",
                        "Value": "1",
                        "Cooldown": "PT5M"
                    }
                }
            ]
                },
    "LastScaleActionTime": "Thu, 26 Jan 2023 12:57:14 GMT"
    }",
    ...
   "activityStatusValue": "Succeeded"
}

Mendapatkan hasil status operasi

Dicatat mengikuti peristiwa skala:


"Properties":{
    "eventCategory": "Autoscale",
    "eventName": "GetOperationStatusResult",
    ...
    "eventProperties": "{"OldInstancesCount":3,"NewInstancesCount":2}",
    ...
    "activityStatusValue": "Succeeded"
}

Kegagalan metrik

Dicatat saat skala otomatis tidak dapat menentukan nilai metrik yang digunakan dalam aturan skala:

"Properties":{
    "eventCategory": "Autoscale",
    "eventName": "MetricFailure",
    ...
    "eventProperties": "{
        "Notes":"To ensure service availability, Autoscale will scale out the resource to the default capacity if it is greater than the current capacity}",
    ...
    "activityStatusValue": "Failed"
}

Pemulihan metrik

Dicatat ketika skala otomatis dapat sekali lagi menentukan nilai metrik yang digunakan dalam aturan skala setelah MetricFailure peristiwa:

"Properties":{
    "eventCategory": "Autoscale",
    "eventName": "MetricRecovery",
    ...
    "eventProperties": "{}",
    ...
    "activityStatusValue": "Succeeded"
}

Kegagalan metrik prediktif

Dicatat saat skala otomatis tidak dapat menghitung peristiwa skala yang diprediksi karena metrik tidak tersedia:

"Properties": {
    "eventCategory": "Autoscale",
    "eventName": "PredictiveMetricFailure",
    ...
    "eventProperties": "{
        "Notes": "To ensure service availability, Autoscale will scale out the resource to the default capacity if it is greater than the current capacity"
    }",
   ...
    "activityStatusValue": "Failed"
}

Terjadi flapping

Dicatat ketika skala otomatis mendeteksi flapping dapat terjadi dan menskalakan secara berbeda untuk menghindarinya:

"Properties":{
    "eventCategory": "Autoscale",
    "eventName": "FlappingOccurred",
    ...
    "eventProperties": 
        "{"Description":"Scale down will occur with updated instance count to avoid flapping. 
         Resource: '/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan'.
         Current instance count: '6', 
         Intended new instance count: '1'.
         Actual new instance count: '4'",
        "ResourceName":"/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Web/serverFarms/ScaleableAppServicePlan",
        "OldInstancesCount":6,
        "NewInstancesCount":4,
        "ActiveAutoscaleProfile":{"Name":"Auto created scale condition",
        "Capacity":{"Minimum":"1","Maximum":"30","Default":"1"},
        "Rules":[{"MetricTrigger":{"Name":"Requests","Namespace":"microsoft.web/sites","Resource":"/subscriptions/    d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/providers/Microsoft.Web/sites/ScaleableWebApp1",    "ResourceLocation":"West Central US","TimeGrain":"PT1M","Statistic":"Average","TimeWindow":"PT1M","TimeAggregation":"Maximum",    "Operator":"GreaterThanOrEqual","Threshold":3.0,"Source":"/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/    rg-001/providers/Microsoft.Web/sites/ScaleableWebApp1","MetricType":"MDM","Dimensions":[],"DividePerInstance":true},    "ScaleAction":{"Direction":"Increase","Type":"ChangeCount","Value":"10","Cooldown":"PT1M"}},{"MetricTrigger":{"Name":"Requests",    "Namespace":"microsoft.web/sites","Resource":"/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/    providers/Microsoft.Web/sites/ScaleableWebApp1","ResourceLocation":"West Central US","TimeGrain":"PT1M","Statistic":"Max",    "TimeWindow":"PT1M","TimeAggregation":"Maximum","Operator":"LessThan","Threshold":3.0,"Source":"/subscriptions/    d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/providers/Microsoft.Web/sites/ScaleableWebApp1","MetricType":"MDM",    "Dimensions":[],"DividePerInstance":true},"ScaleAction":{"Direction":"Decrease","Type":"ChangeCount","Value":"5",    "Cooldown":"PT1M"}}]}}",
    ...
    "activityStatusValue": "Succeeded"
}

Flapping

Dicatat ketika skala otomatis mendeteksi flapping dapat terjadi dan menunda penskalaan untuk menghindarinya:

"Properties": {
    "eventCategory": "Autoscale",
    "eventName": "Flapping",
    "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'",
    "ResourceName": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourcegroups/rg-001/providers/Microsoft.Compute/virtualMachineScaleSets/mac2",
    "OldInstancesCount": "2",
    "NewInstancesCount": "2",
    "ActiveAutoscaleProfile": "ActiveAutoscaleProfile": {
        "Name": "Auto created default scale condition",
        "Capacity": {
            "Minimum": "1",
            "Maximum": "2",
            "Default": "1"
        },
        "Rules": [
            {
                "MetricTrigger": {
                    "Name": "StorageSuccesses",
                    "Namespace": "monitoringbackgroundjob",
                    "Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/providers/microsoft.monitor/accounts/MACAzureInsightsPROD",
                    "ResourceLocation": "EastUS2",
                    "TimeGrain": "PT1M",
                    "Statistic": "Average",
                    "TimeWindow": "PT10M",
                    "TimeAggregation": "Average",
                    "Operator": "LessThan",
                    "Threshold": 600.0,
                    "Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-001/providers/microsoft.monitor/accounts/MACAzureInsightsPROD",
                    "MetricType": "MDM",
                    "Dimensions": [],
                    "DividePerInstance": false
                },
                "ScaleAction": {
                    "Direction": "Decrease",
                    "Type": "ChangeCount",
                    "Value": "1",
                    "Cooldown": "PT5M"
                }
            },
            {
                "MetricTrigger": {
                    "Name": "TimeToStartupInMs",
                    "Namespace": "armrpclient",
                    "Resource": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-123/providers/microsoft.monitor/accounts/MACMetricsRP",
                    "ResourceLocation": "eastus2",
                    "TimeGrain": "PT1M",
                    "Statistic": "Percentile99th",
                    "TimeWindow": "PT10M",
                    "TimeAggregation": "Average",
                    "Operator": "GreaterThan",
                    "Threshold": 70.0,
                    "Source": "/subscriptions/d1234567-9876-a1b2-a2b1-123a567b9f8767/resourceGroups/rg-123/providers/microsoft.monitor/accounts/MACMetricsRP",
                    "MetricType": "MDM",
                    "Dimensions": [],
                    "DividePerInstance": false
                },
                "ScaleAction": {
                    "Direction": "Increase",
                    "Type": "ChangeCount",
                    "Value": "1",
                    "Cooldown": "PT5M"
                }
            }
        ]
    }"
}...

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