Question

我有一个powershell代码，它接受一个数组，遍历每个元素并更新另一个服务器上的SQL数据库。

似乎陷入了以下代码

do{
    try{
        $cmd_update = New-Object System.Data.SqlClient.SqlCommand($sql_update,$conn_update)
        $found = $cmd_update.ExecuteNonQuery()   
        $num_moved=$num_moved+1
        $timestamp = Get-Date
        Add-Content D:\Script\Output_SCHOOLS_Default_Group.log "Moving $ip, SEP version $sep_version to $group_name, $timestamp`r" 
        Write-host Moving $ip, SEP version $sep_version to $group_name, $timestamp
        $transactionComplete = $true
    } 
    catch{
        $transactionComplete = $false
    }
} until ($transactionComplete)

直到$ transactionComplete，它才会保持这种状态，这可能永远不会发生，具体取决于系统瓶颈。

如果1分钟过去且$ transactionComplete仍为假，我如何退出外观？

Answer 1

您可以再引入一个条件来检查执行的总时间是否超过一分钟。

例如，

$MaxTime = new-timespan -Minutes 1
$StopWatch = [Diagnostics.StopWatch]::StartNew()
do{                
    try{    
        $cmd_update = New-Object System.Data.SqlClient.SqlCommand($sql_update,$conn_update)
        $found = $cmd_update.ExecuteNonQuery()   
        $num_moved=$num_moved+1  
        $timestamp = Get-Date                        
        Add-Content D:\Script\Output_SCHOOLS_Default_Group.log "Moving $ip, SEP version $sep_version to $group_name, $timestamp`r" 
        Write-host Moving $ip, SEP version $sep_version to $group_name, $timestamp
        $transactionComplete = $true
    } 
    catch{
        $transactionComplete = $false
    }
} until ($transactionComplete -or (-not $StopWatch.Elapsed))

Answer 2

将它放在循环之前：

$start = Get-Date

并将其放在catch块的末尾：

if (((Get-Date)-$start).TotalMinutes -gt 1) {
    $transactionComplete = $true
    }

Powershell陷入无限循环

2 个答案: