0
我正在PowerShell腳本中運行DTEXEC.exe命令，試圖捕獲並將輸出記錄到文件中。有時輸出不完整，我試圖弄清楚爲什麼會出現這種情況，以及可能會做些什麼。似乎從來沒有得到記錄的線條是最有趣：通過PowerShell運行的命令的捕獲輸出有時不完整
DTEXEC: The package execution returned DTSER_SUCCESS(0)
Started: 10:58:43 a.m.
Finished: 10:59:24 a.m.
Elapsed: 41.484 seconds
輸出似乎總是不完全對執行少於〜25秒鐘，這可能是一個線索包（沒有多大的輸出或者快速完成）。
我正在使用.NET System.Diagnostics.Process和ProcessStartInfo來設置和運行命令，並將stdout和stderror重定向到事件處理程序，每個事件處理程序附加到隨後寫入磁盤的StringBuilder。
該問題感覺像是計時問題或緩衝問題。爲了解決計時問題，我試圖使用Monitor.Enter/Exit。如果這是一個緩衝問題，我不知道如何強制進程不緩衝stdout和stderror。
環境是 - PowerShell的2運行CLR版本2 - SQL 2008的32位DTEXEC.exe - 主機操作系統：XP Service Pack 3的
下面的代碼：
function Execute-SSIS-Package
{
param([String]$fileName)
$cmd = GetDTExecPath
$proc = New-Object System.Diagnostics.Process
$proc.StartInfo.FileName = $cmd
$proc.StartInfo.Arguments = "/FILE ""$fileName"" /CHECKPOINTING OFF /REPORTING ""EWP"""
$proc.StartInfo.RedirectStandardOutput = $True
$proc.StartInfo.RedirectStandardError = $True
$proc.StartInfo.WorkingDirectory = Get-Location
$proc.StartInfo.UseShellExecute = $False
$proc.StartInfo.CreateNoWindow = $False
Write-Host $proc.StartInfo.FileName $proc.StartInfo.Arguments
$cmdOut = New-Object System.Text.StringBuilder
$errorEvent = Register-ObjectEvent -InputObj $proc `
-Event "ErrorDataReceived" `
-MessageData $cmdOut `
-Action `
{
param
(
[System.Object] $sender,
[System.Diagnostics.DataReceivedEventArgs] $e
)
try
{
[System.Threading.Monitor]::Enter($Event.MessageData)
Write-Host -ForegroundColor "DarkRed" $e.Data
[void](($Event.MessageData).AppendLine($e.Data))
}
catch
{
Write-Host -ForegroundColor "Red" "Error capturing processes std error" $Error
}
finally
{
[System.Threading.Monitor]::Exit($Event.MessageData)
}
}
$outEvent = Register-ObjectEvent -InputObj $proc `
-Event "OutputDataReceived" `
-MessageData $cmdOut `
-Action `
{
param
(
[System.Object] $sender,
[System.Diagnostics.DataReceivedEventArgs] $e
)
try
{
[System.Threading.Monitor]::Enter($Event.MessageData)
#Write-Host $e.Data
[void](($Event.MessageData).AppendLine($e.Data))
}
catch
{
Write-Host -ForegroundColor "Red" "Error capturing processes std output" $Error
}
finally
{
[System.Threading.Monitor]::Exit($Event.MessageData)
}
}
$isStarted = $proc.Start()
$proc.BeginOutputReadLine()
$proc.BeginErrorReadLine()
while (!$proc.HasExited)
{
Start-Sleep -Milliseconds 100
}
Start-Sleep -Milliseconds 1000
$procExitCode = $proc.ExitCode
$procStartTime = $proc.StartTime
$procFinishTime = Get-Date
$proc.Close()
$proc.CancelOutputRead()
$proc.CancelErrorRead()
$result = New-Object PsObject -Property @{
ExitCode = $procExitCode
StartTime = $procStartTime
FinishTime = $procFinishTime
ElapsedTime = $procFinishTime.Subtract($procStartTime)
StdErr = ""
StdOut = $cmdOut.ToString()
}
return $result
}