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我们正在使用 Microsoft HPC（高性能计算）。当作业运行时，我想查看各种 HPC 指标并将它们发布到 AWS Cloudwatch。以下是 AWS 站点上的脚本。整个脚本运行良好，但尝试写入 Cloudwatch 的最后一行失败。

有人收到这个错误吗？ 

Write-CWMetricData : A WebException with status NameResolutionFailure was thrown.
   At D:\temp\HPCMetricstest.ps1:81 char:1
   + Write-CWMetricData -Namespace "HPC Cluster Metrics" -MetricData $m1, 
    $m2, $m3, $ ...

     + CategoryInfo          : InvalidOperation: 
(Amazon.PowerShe...etricDataCmdlet:WriteCWMetricDataCmdlet) [Write-CWM
        etricData], InvalidOperationException
  + FullyQualifiedErrorId :mazon.Runtime.AmazonServiceException,Amazon.PowerShell.Cmdlets.CW.WriteCWMetricDataCmdl
   et


  # 
  # This PowerShell script computes metrics on the head node of an HPC 
   Pack cluster and publishes them to Amazon CloudWatch 
  #
  # It must be called with the current region and stack name
   #  Properties of HPC Nod: NetBiosName, HealthState, State, Groups 
  [CmdletBinding()]
  param(
        [Parameter(Mandatory=$True,Position=1)]
        [string]$Region,
        [Parameter(Mandatory=$True,Position=2)]
        [string]$Stack
  )

   Add-PSSnapIn Microsoft.HPC
   Import-Module AWSPowerShell


    $jobs = (Get-HpcJob -State Queued, Running -ErrorAction SilentlyContinue)

    $tasks = ($jobs | Get-HpcTask -State Running, Queued -ErrorAction SilentlyContinue)
    $nodes = (Get-HpcNode -GroupName ComputeNodes -State Online)

    $jobCount = $jobs.Count
    $taskCount = $task.Count
    $coreHours = ($tasks | % { $_.Runtime.TotalHours * $_.MinCores } | 
    Measure-Object -Sum | Select-Object -ExpandProperty Sum)
    $nodeCount = $nodes.Count


    $coresPerMachine = ($nodes | Measure-Object -Property SubscribedCores -Average | Select-Object -ExpandProperty Average)

    Write-Host "Cores per machine basam " $coresPerMachine

    $machineHours = [System.Math]::Ceiling($coreHours / $coresPerMachine)
    $globalHours = [System.Math]::Ceiling($machineHours / $nodeCount)

    Function CreateMetric
    {
          param([string]$Name, [string]$Unit="Count", [string]$Value="0", 
          [string]$StackId, [System.DateTime]$When = (Get-
          Date).ToUniversalTime())

          $dim = New-Object Amazon.CloudWatch.Model.Dimension
          $dim.Name = "StackId"
         $dim.Value = $StackId

$dat = New-Object Amazon.CloudWatch.Model.MetricDatum
$dat.Timestamp = $When
$dat.MetricName = $Name
$dat.Unit = $Unit
$dat.Value = $Value

#Write-Host $dat.MetricName $dat.Value $dat.Unit $dat.Timestamp

$dat.Dimensions = New-Object -TypeName System.Collections.Generic.List[Amazon.CloudWatch.Model.Dimension]
$dat.Dimensions.Add($dim)
$dat
}

   $now = (Get-Date).ToUniversalTime()
   $m1 = (CreateMetric -Name "Job Count" -Value "$jobCount" -StackId 
        $Stack -When $now)
   $m2 = (CreateMetric -Name "Task Count" -Value "$taskCount" -StackId 
       $Stack -When $now)
    $m3 = (CreateMetric -Name "Core Hours" -Value "$coreHours" -StackId 
         $Stack -When $now)
    $m4 = (CreateMetric -Name "Node Count" -Value "$nodeCount" -StackId 
         $Stack -When $now)
     $m5 = (CreateMetric -Name "Cores Per Machine" -Value 
         "$coresPerMachine" -StackId $Stack -When $now)
      $m6 = (CreateMetric -Name "Machine Hours" -Value "$machineHours" -
        StackId $Stack -When $now)
      $m7 = (CreateMetric -Name "Global Hours" -Value "$globalHours" -
         StackId $Stack -When $now)

      #Next line I am getting issue   
      Write-CWMetricData -Namespace "HPC Cluster Metrics" -MetricData 
          $m1, $m2, $m3, $m4, $m5, $m6, $m7 -Region $Region
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1 回答 1

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在适用于 PowerShell 的 AWS 工具中，"A WebException with status NameResolutionFailure was thrown."这通常意味着您错误地指定了区域。这是因为该区域用于为您尝试访问的支持 Web 服务解析 DNS，在本例中为您给定区域的 CloudWatch 服务。

请参阅文档以获取有效区域列表，或在此处评论您尝试使用的区域，我们可以帮助您选择正确的区域。

延伸阅读

于 2017-09-22T21:38:21.933 回答