Rebuilds the SharePoint configuration cache on the specified servers in parallel.

Repair-ConfigCacheParallel.ps1

#Requires -Version 4.0 
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction Stop

$serverNames = Get-SPServer | ? { $_.Role -ne "Invalid" } | % { $_.Address }

workflow Repair-ConfigCache
{
    param
    (
        [parameter(Mandatory=$true)][string[]]$ComputerNames,
        [parameter(Mandatory=$true)][string[]]$CachePath
    )

    foreach -Parallel -ThrottleLimit $($ComputerNames.Count) ( $computerName in $ComputerNames )
    {
        InlineScript { 

            $exception = "None"

            try
            {
                # get the original xml file count
                $xmlFileCount = (Get-ChildItem -Path $using:CachePath -Filter "*.xml" | Measure-Object).Count

                # stop the timer service
                Get-Service -Name "SPTimerV4" | Stop-Service -Force 

                # delete the xml files
                Get-ChildItem -Path $using:CachePath -Filter "*.xml" | Remove-Item -Force -Confirm:$False

                # update the cache.ini file to 1
                Set-Content -Path "$using:CachePath\cache.ini" -Value "1" 

                # start the timer service
                Get-Service -Name "SPTimerV4" | Start-Service 

                $stopWatch = [System.Diagnostics.StopWatch]::StartNew()

                # wait for the .xml files to populate (up to 5 minutes)
                while( $stopWatch.ElapsedMilliseconds -lt (1000 * 60 * 5) -and (Get-ChildItem -Path $using:CachePath -Filter "*.xml" | Measure-Object).Count -lt $xmlFileCount )
                {
                    Start-Sleep -Seconds 1
                }
            }
            catch
            {
                $exception = $_.Exception
            }
            finally
            {
                if( (Get-Service -Name "SPTimerV4").Status -ne "Running" )
                {
                    Get-Service -Name "SPTimerV4" | Start-Service 
                }

                [PSCustomObject] @{
                    "Computer"             = $computerName
                    "StartCacheFileCount"  = $xmlFileCount
                    "FinishCacheFileCount" = (Get-ChildItem -Path $using:CachePath -Filter "*.xml" | Measure-Object).Count
                    "TimerServiceStatus"   = (Get-Service -Name "SPTimerV4").Status 
                    "Exception"            = $exception
                }

            }
                   
        } -PSComputerName $computerName
    }
}

$configDatabase = Get-SPDatabase -Verbose:$false | ? { $_.TypeName -eq "Configuration Database" } 
$cacheDirectory = "C:\ProgramData\Microsoft\SharePoint\Config\$($configDatabase.Id)"

Repair-ConfigCache -ComputerNames $serverNames -CachePath $cacheDirectory | SORT Computer | FT Computer, StartCacheFileCount, FinishCacheFileCount, TimerServiceStatus, Exception  -Auto