备份到 Azure Blob 时显示已完成，而备份仍在进行中

Question

我正在使用 azure automation 来自动执行将我的数据库备份到 azure blob 存储的过程，它工作正常但我要解决的问题是在实际备份完成之前状态显示已完成，如果我尝试重新运行它告诉我的自动化：

"ErrorActionPreference" or common parameter is set to Stop: 45183: There is an import or export operation in progress on the database 'database'.

这是我的 powershell 脚本：

    param(
    [parameter(Mandatory=$true)]
    [String] $ResourceGroupName,
    [parameter(Mandatory=$true)]
    [String] $DatabaseServerName,
    [parameter(Mandatory=$true)]
    [String]$DatabaseAdminUsername,
    [parameter(Mandatory=$true)]
    [String]$DatabaseAdminPassword,
    [parameter(Mandatory=$true)]
    [String]$DatabaseNames,
    [parameter(Mandatory=$true)]
    [String]$StorageAccountName,
    [parameter(Mandatory=$true)]
    [String]$BlobStorageEndpoint,
    [parameter(Mandatory=$true)]
    [String]$StorageKey,
    [parameter(Mandatory=$true)]
    [string]$BlobContainerName
    # [parameter(Mandatory=$true)]
    # [Int32]$RetentionDays
)

$ErrorActionPreference = 'stop'

function Login() {
    $connectionName = "AzureRunAsConnection"
    try
    {
        $servicePrincipalConnection = Get-AutomationConnection -Name $connectionName         

        Write-Verbose "Logging in to Azure..." -Verbose

        Add-AzureRmAccount `
            -ServicePrincipal `
            -TenantId $servicePrincipalConnection.TenantId `
            -ApplicationId $servicePrincipalConnection.ApplicationId `
            -CertificateThumbprint $servicePrincipalConnection.CertificateThumbprint | Out-Null
    }
    catch {
        if (!$servicePrincipalConnection)
        {
            $ErrorMessage = "Connection $connectionName not found."
            throw $ErrorMessage
        } else{
            Write-Error -Message $_.Exception
            throw $_.Exception
        }
    }
}

function Create-Blob-Container([string]$blobContainerName, $storageContext) {
    Write-Verbose "Checking if blob container '$blobContainerName' already exists" -Verbose
    if (Get-AzureStorageContainer -ErrorAction "Stop" -Context $storageContext | Where-Object { $_.Name -eq $blobContainerName }) {
        Write-Verbose "Container '$blobContainerName' already exists" -Verbose
    } else {
        New-AzureStorageContainer -ErrorAction "Stop" -Name $blobContainerName -Permission Off -Context $storageContext
        Write-Verbose "Container '$blobContainerName' created" -Verbose
    }
}

function Export-To-Blob-Storage([string]$resourceGroupName, [string]$databaseServerName, [string]$databaseAdminUsername, [string]$databaseAdminPassword, [string[]]$databaseNames, [string]$storageKey, [string]$blobStorageEndpoint, [string]$blobContainerName) {
    Write-Verbose "Starting database export to databases '$databaseNames'" -Verbose
    $securePassword = ConvertTo-SecureString –String $databaseAdminPassword –AsPlainText -Force 
    $creds = New-Object –TypeName System.Management.Automation.PSCredential –ArgumentList $databaseAdminUsername, $securePassword

    foreach ($databaseName in $databaseNames.Split(",").Trim()) {
        Write-Output "Creating request to backup database '$databaseName'"

        $bacpacFilename =$databaseName + "LiveBak_anon" + ".bacpac"
        $bacpacUri = $blobStorageEndpoint + "/" + $blobContainerName + "/" + $bacpacFilename

        $exportRequest = New-AzureRmSqlDatabaseExport -ResourceGroupName $resourceGroupName –ServerName $databaseServerName `
            –DatabaseName $databaseName –StorageKeytype "StorageAccessKey" –storageKey $storageKey -StorageUri $BacpacUri `
            –AdministratorLogin $creds.UserName –AdministratorLoginPassword $creds.Password -ErrorAction "Stop"
        
        # Print status of the export
        # Get-AzureRmSqlDatabaseImportExportStatus -OperationStatusLink $exportRequest.OperationStatusLink -ErrorAction "Stop"
        
    }
}

# function Delete-Old-Backups([int]$retentionDays, [string]$blobContainerName, $storageContext) {
#   Write-Output "Removing backups older than '$retentionDays' days from blob: '$blobContainerName'"
#   $isOldDate = [DateTime]::UtcNow.AddDays(-$retentionDays)
#   $blobs = Get-AzureStorageBlob -Container $blobContainerName -Context $storageContext
#   foreach ($blob in ($blobs | Where-Object { $_.LastModified.UtcDateTime -lt $isOldDate -and $_.BlobType -eq "BlockBlob" })) {
#       Write-Verbose ("Removing blob: " + $blob.Name) -Verbose
#       Remove-AzureStorageBlob -Blob $blob.Name -Container $blobContainerName -Context $storageContext
#   }
# }

Write-Verbose "Starting database backup" -Verbose

$StorageContext = New-AzureStorageContext -StorageAccountName $storageAccountName -StorageAccountKey $storageKey

Login

Create-Blob-Container `
    -blobContainerName $blobContainerName `
    -storageContext $storageContext
    
Export-To-Blob-Storage `
    -resourceGroupName $ResourceGroupName `
    -databaseServerName $DatabaseServerName `
    -databaseAdminUsername $DatabaseAdminUsername `
    -databaseAdminPassword $DatabaseAdminPassword `
    -databaseNames $DatabaseNames `
    -storageKey $StorageKey `
    -blobStorageEndpoint $BlobStorageEndpoint `
    -blobContainerName $BlobContainerName
    
# Delete-Old-Backups `
#   -retentionDays $RetentionDays `
#   -storageContext $StorageContext `
#   -blobContainerName $BlobContainerName
    
Write-Verbose "Database backup script finished" -Verbose

我基本上需要的只是让这个过程显示运行即使备份操作正在进行中，因为我在逻辑应用程序中使用这个自动化。

Answer 1

你可以使用 Get-AzureRmSqlDatabaseImportExportStatus

示例：

PS C:\>Get-AzureRmSqlDatabaseImportExportStatus -OperationStatusLink "https://management.contoso.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/resource01/providers/Microsoft.Sql/servers/server01/databases/database01/importExportOperationResults/00000000-000-0000-0000-000000000000?api-version=2014-04-01"
OperationStatusLink : 
ErrorMessage        : 
LastModifiedTime    : 4/15/2016 10:16:14 PM
QueuedTime          : 4/15/2016 10:16:13 PM
StatusMessage       : Running, Progress = 5.00 %
Status              : InProgress

当您运行 New-AzureRmSqlDatabaseExport 时，作业已提交，但永远不会等待作业完成。后续行被执行。

在您的代码中，您提到了以下行

Write-Verbose "Database backup script finished" -Verbose

提交导出作业后，将执行上面的行。

为了解决这个问题，您可以使用 Get-AzureRmSqlDatabaseImportExportStatus 并轮询状态，继续完成状态。

备份到 Azure Blob 时显示已完成，而备份仍在进行中

Backup to azure Blob showing completed while backup still in progress

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