Azure 自动化清除 CDN 端点

Question

我正在尝试放置一个 Azure 自动化 Runbook，目的是在对 Blob 存储进行更改时清除所有缓存。到目前为止，如果我从 azure 门户上传 1 个文件，效果很好。但是，如果我尝试上传多个文件，其中一些文件就会失败并出现以下错误。

We can only accept 100 paths for purging concurrently. Please try again in a few minutes.

这是我在自动化 Runbook 流程中使用的代码:

param (
    [Parameter (Mandatory = $false)]
    [object] $WebHookData
)

## Authentication ##

# Runbook must authenticate to purge content
# Connect to Azure with RunAs account
$conn = Get-AutomationConnection -Name "AzureRunAsConnection"

# Connect to Azure Automation
$null = Add-AzAccount `
  -ServicePrincipal `
  -TenantId $conn.TenantId `
  -ApplicationId $conn.ApplicationId `
-CertificateThumbprint $conn.CertificateThumbprint


## declarations ##

# Update parameters below
# CDN Profile name
$profileName = "<CDNProfileName>"
# CND Resource Group
$resourceGroup = "<Resource-Group>"
# CDN Endpoint Name
$endPointName = "<EndPointName>"

# Set Error Action Default
$errorDefault = $ErrorActionPreference

## Execution ##

# Convert Webhook Body to json
try {
    $requestBody = $WebHookData.requestBody | ConvertFrom-json -ErrorAction 'stop'
}
catch {
    $ErrorMessage = $_.Exception.message
    write-error ('Error converting Webhook body to json ' + $ErrorMessage)
    Break
}
# Convert requestbody to file path

try {
    $ErrorActionPreference = 'stop'
    $filePath = $requestBody.data.url -replace "https://<storageaccountname>.blob.core.windows.net",""
}
catch {
    $ErrorMessage = $_.Exception.message
    write-error ('Error converting file path ' + $ErrorMessage)
    Break
}
finally {
    $ErrorActionPreference = $errorDefault
}
# Run the purge command against the file
try {
    Unpublish-AzCdnEndpointContent -ErrorAction 'Stop' -ProfileName $profileName -ResourceGroupName $resourceGroup `
    -EndpointName $endPointName -PurgeContent '/*'
}
catch {
    $ErrorMessage = $_.Exception.message
    write-error ('Error purging content from CDN ' + $ErrorMessage)
    Break
}

任何人都可以帮助解决这个问题，或者向我澄清清除因该错误而失败的原因(“BadRequest”)

非常感谢您的帮助

Answer 1

从底部the article about CDN purge enpoint :

Purge requests take approximately 10 minutes to process with Azure CDN from Microsoft, approximately 2 minutes with Azure CDN from Verizon (standard and premium), and approximately 10 seconds with Azure CDN from Akamai. Azure CDN has a limit of 100 concurrent purge requests at any given time at the profile level.

在配置文件级别的任何给定时间，并发清除请求的限制为 100 个。