如果在 Windows Powershell 中失败，如何重新启动特定命令？

Question

在 ps1 文件中，我启动了 2 个单独的进程，如下所示：如您所见，唯一的区别是 CPU 亲和力。

$Process1 = Start-Process -FilePath 'C:\Windows\system32\notepad.exe' -PassThru
$Process1.ProcessorAffinity = 65535
$Process1.PriorityClass = 'RealTime'

$Process2 = Start-Process -FilePath 'C:\Windows\system32\notepad.exe' -PassThru
$Process2.ProcessorAffinity = 4294901760
$Process2.PriorityClass = 'RealTime'

有时，2 个进程之一随机失败并显示： 问题事件名称：BEX64

发生此类故障时，必须立即重新启动进程。所以我遇到了这个问题。

Can I monitor within the PS1 file the 2 processes and if one fails to restart it? The monitoring process must be able to distinguish which of the 2 processes has failed, so that the correct affinity is used to restart it.

如果您有涉及 windows 批处理脚本的解决方案，请访问 How to RESTART a specific command if it fails in Windows Batch file?

谢谢

Answer 1

$Process1 = Start-Process -FilePath 'C:\Windows\system32\notepad.exe' -PassThru
$Process1.ProcessorAffinity = 1
$Process1.PriorityClass = 'RealTime'
Write-Host Process ID $process1.Id started with CPU affinity $Process1.ProcessorAffinity

$Process2 = Start-Process -FilePath 'C:\Windows\system32\notepad.exe' -PassThru
$Process2.ProcessorAffinity = 2
$Process2.PriorityClass = 'RealTime'
Write-Host Process ID $process2.Id started with CPU affinity $Process2.ProcessorAffinity

while($true){
    foreach($process in $Process1,$Process2){
        if($process.hasexited){

            Write-Host "Process ID $($process.id) has exited, restarting."
            $priority = $process.PriorityClass
            $affinity = $process.ProcessorAffinity
            if($newprocess = $process.Start()){
                Write-Host Successfully restarted process ID $process.Id with CPU affinity $process.ProcessorAffinity
                $process.PriorityClass = $priority
                $process.ProcessorAffinity = $affinity
                Write-Host Priority Class set back to $process.PriorityClass
                Write-Host Process affinity set back to $process.ProcessorAffinity
            }
        }
    }
    Start-Sleep -Milliseconds 500
}

如果在 Windows Powershell 中失败，如何重新启动特定命令？

How to RESTART a specific command if it fails in Windows Powershell?

powershell

scripting