如何在我的代码中集成并行性

Question

到目前为止，我的代码一个接一个地工作，但我需要它们并行运行：

这是我的代码。

$TIMESTAMP = Get-Date; 
$TIMESTAMP = $TIMESTAMP.ToString("yyyy-MM-dd-07:00");
#Patterns
$DB_NAME_MIRROR = "mirroring_<X>(<Y>)";
$primarykey = $STORAGE_ACCOUNT_BACKUP_KEY; 
#strdatabasebackup
$STORAGE_URI_BACKUP = "example/(<Y>)<X>.bacpac";
#Arrays 
$DB_ARRAY = @("dbdom_mpinto","dbdom_penalolen","dbdom_coquimbo","dbdom_elquisco","dbdom_temuco","dbdom_imelbosque","dbdom_lareina","dbdom_buin");
#Replace timestamp 
$DB_NAME_MIRROR = $DB_NAME_MIRROR.Replace('<Y>',$TIMESTAMP); 
$STORAGE_URI_BACKUP = $STORAGE_URI_BACKUP.Replace('<Y>',$TIMESTAMP);
#Debugging....
#Write-Host $DB_NAME_MIRROR;
#Write-Host $STORAGE_URI_BACKUP;
#Database import 
foreach ($DB in $DB_ARRAY)  {
$DB_NAME_IMPORT = $DB_NAME_MIRROR.Replace('<X>',$DB);
$URL_FILE_BACKUP = $STORAGE_URI_BACKUP.Replace('<X>',$DB);
#Debugging
Write-Host $DB_NAME_IMPORT   
Write-Host $URL_FILE_BACKUP
}

如何并行编写代码

Answer 1

有几种方法可以完成"多线程/并行"工作。

• 工作
• 工作流程
• 运行空间

使用 PowerShell 进行并行处理

Start-Job -Name EventJob01 -ScriptBlock {Get-EventLog -Log system} -Credential domain01user01

Workflow Some-TasksToRun
{
<Commands>
}
$rp = [runspacefactory]::CreateRunspace(1,5)
$ps = [powershell]::Create()
$ps.RunspacePool = $rp
...

"blogs.technet.microsoft.com/uktechnet/2016/06/20/parallel-processing-with-powershell">

另请参阅有关运行空间的长篇讨论：

"serverfault.com/questions/626711/how-do-i-run-my-powershell-scripts-in-parallel-without-using-jobs">