functions/Remove-DbaPfDataCollectorCounter.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Remove-DbaPfDataCollectorCounter { <# .SYNOPSIS Removes a Performance Data Collector Counter. .DESCRIPTION Removes a Performance Data Collector Counter. .PARAMETER ComputerName The target computer. Defaults to localhost. .PARAMETER Credential Allows you to login to the target computer using alternative credentials. To use: $cred = Get-Credential, then pass $cred object to the -Credential parameter. .PARAMETER CollectorSet The name of the Collector Set to search. .PARAMETER Collector The name of the Collector to remove. .PARAMETER Counter The name of the Counter - in the form of '\Processor(_Total)\% Processor Time'. .PARAMETER InputObject Accepts the object output by Get-DbaPfDataCollectorSet via the pipeline. .PARAMETER WhatIf If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run. .PARAMETER Confirm If this switch is enabled, you will be prompted for confirmation before executing any operations that change state. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: PerfMon Author: Chrissy LeMaire (@cl), netnerds.net Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Remove-DbaPfDataCollectorCounter .EXAMPLE PS C:\> Remove-DbaPfDataCollectorCounter -ComputerName sql2017 -CollectorSet 'System Correlation' -Collector DataCollector01 -Counter '\LogicalDisk(*)\Avg. Disk Queue Length' Prompts for confirmation then removes the '\LogicalDisk(*)\Avg. Disk Queue Length' counter within the DataCollector01 collector within the System Correlation collector set on sql2017. .EXAMPLE PS C:\> Get-DbaPfDataCollectorCounter | Out-GridView -PassThru | Remove-DbaPfDataCollectorCounter -Confirm:$false Allows you to select which counters you'd like on localhost and does not prompt for confirmation. #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = "High")] param ( [DbaInstance[]]$ComputerName = $env:COMPUTERNAME, [PSCredential]$Credential, [Alias("DataCollectorSet")] [string[]]$CollectorSet, [Alias("DataCollector")] [string[]]$Collector, [parameter(Mandatory, ValueFromPipelineByPropertyName)] [Alias("Name")] [object[]]$Counter, [parameter(ValueFromPipeline)] [object[]]$InputObject, [switch]$EnableException ) begin { $setscript = { $setname = $args[0]; $removexml = $args[1] $CollectorSet = New-Object -ComObject Pla.DataCollectorSet $CollectorSet.SetXml($removexml) $CollectorSet.Commit($setname, $null, 0x0003) #add or modify. $CollectorSet.Query($setname, $Null) } } process { if ($InputObject.Credential -and (Test-Bound -ParameterName Credential -Not)) { $Credential = $InputObject.Credential } if (-not $InputObject -or ($InputObject -and (Test-Bound -ParameterName ComputerName))) { foreach ($computer in $ComputerName) { $InputObject += Get-DbaPfDataCollectorCounter -ComputerName $computer -Credential $Credential -CollectorSet $CollectorSet -Collector $Collector -Counter $Counter } } if ($InputObject) { if (-not $InputObject.CounterObject) { Stop-Function -Message "InputObject is not of the right type. Please use Get-DbaPfDataCollectorCounter." return } } foreach ($object in $InputObject) { $computer = $InputObject.ComputerName $null = Test-ElevationRequirement -ComputerName $computer -Continue $setname = $InputObject.DataCollectorSet $collectorname = $InputObject.DataCollector $xml = [xml]($InputObject.DataCollectorSetXml) foreach ($countername in $counter) { $node = $xml.SelectSingleNode("//Name[.='$collectorname']").SelectSingleNode("//Counter[.='$countername']") $null = $node.ParentNode.RemoveChild($node) $node = $xml.SelectSingleNode("//Name[.='$collectorname']").SelectSingleNode("//CounterDisplayName[.='$countername']") $null = $node.ParentNode.RemoveChild($node) } $plainxml = $xml.OuterXml if ($Pscmdlet.ShouldProcess("$computer", "Remove $countername from $collectorname with the $setname collection set")) { try { $results = Invoke-Command2 -ComputerName $computer -Credential $Credential -ScriptBlock $setscript -ArgumentList $setname, $plainxml -ErrorAction Stop -Raw Write-Message -Level Verbose -Message " $results" [pscustomobject]@{ ComputerName = $computer DataCollectorSet = $setname DataCollector = $collectorname Name = $counterName Status = "Removed" } } catch { Stop-Function -Message "Failure importing $Countername to $computer." -ErrorRecord $_ -Target $computer -Continue } } } } } |