有没有办法在 host.json 文件中为 "extensionBundle" 的 azure 函数设置批量大小

Question

有没有办法让我使用“extensionBundle”键在我的 host.json 文件中设置批量大小？这是它的样子：

"extensionBundle": {
"id": "Microsoft.Azure.Functions.ExtensionBundle",
"version": "[2.*, 3.0.0)"
}

我看到其他人是这样设置的：

{
"extensions": {
  "queues": {
    "batchSize": 1,...

虽然我不确定如果我更换扩展包是否会出现问题...有谁知道我将如何访问该包并更改我想更改的内容？或者我应该完全替换 extensionBundle

Answer 1

在 Azure Functions 中，Sample host.json file 由所有可能的选项组成：

{
    "version": "2.0",
    "aggregator": {
        "batchSize": 1000,
        "flushTimeout": "00:00:30"
    },
    "extensions": {
        "blobs": {},
        "cosmosDb": {},
        "durableTask": {},
        "eventHubs": {},
        "http": {},
        "queues": {},
        "sendGrid": {},
        "serviceBus": {}
    },
    "extensionBundle": {
        "id": "Microsoft.Azure.Functions.ExtensionBundle",
        "version": "[1.*, 2.0.0)"
    },
    "functions": [ "QueueProcessor", "GitHubWebHook" ],
    "functionTimeout": "00:05:00",
    "healthMonitor": {
        "enabled": true,
        "healthCheckInterval": "00:00:10",
        "healthCheckWindow": "00:02:00",
        "healthCheckThreshold": 6,
        "counterThreshold": 0.80
    },
    "logging": {
        "fileLoggingMode": "debugOnly",
        "logLevel": {
          "Function.MyFunction": "Information",
          "default": "None"
        },
        "applicationInsights": {
            "samplingSettings": {
              "isEnabled": true,
              "maxTelemetryItemsPerSecond" : 20,
              "evaluationInterval": "01:00:00",
              "initialSamplingPercentage": 100.0, 
              "samplingPercentageIncreaseTimeout" : "00:00:01",
              "samplingPercentageDecreaseTimeout" : "00:00:01",
              "minSamplingPercentage": 0.1,
              "maxSamplingPercentage": 100.0,
              "movingAverageRatio": 1.0,
              "excludedTypes" : "Dependency;Event",
              "includedTypes" : "PageView;Trace"
            },
            "enableLiveMetrics": true,
            "enableDependencyTracking": true,
            "enablePerformanceCountersCollection": true,            
            "httpAutoCollectionOptions": {
                "enableHttpTriggerExtendedInfoCollection": true,
                "enableW3CDistributedTracing": true,
                "enableResponseHeaderInjection": true
            },
            "snapshotConfiguration": {
                "agentEndpoint": null,
                "captureSnapshotMemoryWeight": 0.5,
                "failedRequestLimit": 3,
                "handleUntrackedExceptions": true,
                "isEnabled": true,
                "isEnabledInDeveloperMode": false,
                "isEnabledWhenProfiling": true,
                "isExceptionSnappointsEnabled": false,
                "isLowPrioritySnapshotUploader": true,
                "maximumCollectionPlanSize": 50,
                "maximumSnapshotsRequired": 3,
                "problemCounterResetInterval": "24:00:00",
                "provideAnonymousTelemetry": true,
                "reconnectInterval": "00:15:00",
                "shadowCopyFolder": null,
                "shareUploaderProcess": true,
                "snapshotInLowPriorityThread": true,
                "snapshotsPerDayLimit": 30,
                "snapshotsPerTenMinutesLimit": 1,
                "tempFolder": null,
                "thresholdForSnapshotting": 1,
                "uploaderProxy": null
            }
        }
    },
    "managedDependency": {
        "enabled": true
    },
    "retry": {
      "strategy": "fixedDelay",
      "maxRetryCount": 5,
      "delayInterval": "00:00:05"
    },
    "singleton": {
      "lockPeriod": "00:00:15",
      "listenerLockPeriod": "00:01:00",
      "listenerLockRecoveryPollingInterval": "00:01:00",
      "lockAcquisitionTimeout": "00:01:00",
      "lockAcquisitionPollingInterval": "00:00:03"
    },
    "watchDirectories": [ "Shared", "Test" ],
    "watchFiles": [ "myFile.txt" ]
}

host.json中extensions的示例格式设置batch size是：

{
    "version": "2.0",
    "extensions": {
        "queues": {
            "maxPollingInterval": "00:00:02",
            "visibilityTimeout" : "00:00:30",
            "batchSize": 16,
            "maxDequeueCount": 5,
            "newBatchThreshold": 8,
            "messageEncoding": "base64"
        }
    }
}

这是我在 Azure Functions 的 host.json 文件中设置 batchSize 的示例代码：

```json
{
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[2.*, 3.0.0)"
  },
  "extensions": {
    "queues": {
      "batchSize": 1
    },
    "http": {
    "routePrefix": "api",
    "maxOutstandingRequests": 200,
    "maxConcurrentRequests": 1
    }
} }

无需替换extensionBundle，我们需要在extensions块中设置需要的属性.

另一个示例代码示例类似于存储队列触发器，要更改重试频率 - maxDequeueCount 值必须在 host.json 文件中更改并且重新启动功能。

{
  "version": "2.0",
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[2.*, 3.0.0)"
  },
  "extensions": {
    "queues": {
      "maxDequeueCount": 1
    }
  }
}

有没有办法在 host.json 文件中为 "extensionBundle" 的 azure 函数设置批量大小

Is there a way to set batch size in host.json file for "extensionBundle" for an azure function

azure

azure-functions