Clear SharePoint Cache Powershell

Ever need to clear your farms' configuration cache? Kind of a pain huh? Having to hit each server, deleting all those xml files...resetting the config on all of them....well, powershell to the rescue! 

While working an issue with Jeff Tindilier from MS premier support, he sent me the following powershell script which saves soooo much time!

It will discover all servers in your farm, stop sptimer on each, delete the xml's, reset config file, start sptimer, on all servers!

# Clear the SharePoint Timer Cache
#
# 2009 Mickey Kamp Parbst Jervin (mickeyjervin.wordpress.com)
# 2011 Adapted by Nick Hobbs (nickhobbs.wordpress.com) to work with SharePoint 2010,
# display more progress information, restart all timer services in the farm,
# and make reusable functions.
# 2012 Adapted by Dwayne Selsig (www.dwayneselsig.eu) to also work with SharePoint 2013.
# Added loading of SharePoint Snapin for Powershell. Also this script only queries
# the SharePoint servers.
# Output program information
Write-Host -foregroundcolor White ""
Write-Host -foregroundcolor White "Clear SharePoint Timer Cache"
#**************************************************************************************
# Constants
#**************************************************************************************
Set-Variable timerServiceName -option Constant -value "SPTimerV4"
Set-Variable timerServiceInstanceName -option Constant -value "Microsoft SharePoint Foundation Timer"
#**************************************************************************************
# Functions
#**************************************************************************************
#<summary>
# Loads the SharePoint Powershell Snapin.
#</summary>
Function Load-SharePoint-Powershell
{
If ((Get-PsSnapin |?{$_.Name -eq "Microsoft.SharePoint.PowerShell"})-eq $null)
{
    Write-Host -ForegroundColor White " - Loading SharePoint Powershell Snapin"
Add-PsSnapin Microsoft.SharePoint.PowerShell -ErrorAction Stop
}
}
#<summary>
# Stops the SharePoint Timer Service on each server in the SharePoint Farm.
#</summary>
#<param name="$farm">The SharePoint farm object.</param>
function StopSharePointTimerServicesInFarm($farm)
{
Write-Host ""
# Iterate through each server in the farm, and each service in each server
foreach($server in $farm)
{
foreach($instance in $server.ServiceInstances)
{
# If the server has the timer service then stop the service
if($instance.TypeName -eq $timerServiceInstanceName)
{
[string]$serverName = $server.Name
Write-Host -foregroundcolor DarkGray -NoNewline "Stop '$timerServiceName' service on server: "
Write-Host -foregroundcolor Gray $serverName
$service = Get-WmiObject -ComputerName $serverName Win32_Service -Filter "Name='$timerServiceName'"
sc.exe \\$serverName stop $timerServiceName > $null
# Wait until this service has actually stopped
WaitForServiceState $serverName $timerServiceName "Stopped"
break;
}
}
}
Write-Host ""
}
#<summary>
# Waits for the service on the server to reach the required service state.
# This can be used to wait for the "SharePoint 2010 Timer" service to stop or to start
#</summary>
#<param name="$serverName">The name of the server with the service to monitor.</param>
#<param name="$serviceName">The name of the service to monitor.</param>
#<param name="$serviceState">The service state to wait for, e.g. Stopped, or Running.</param>
function WaitForServiceState([string]$serverName, [string]$serviceName, [string]$serviceState)
{
Write-Host -foregroundcolor DarkGray -NoNewLine "Waiting for service '$serviceName' to change state to $serviceState on server $serverName"
do
{
Start-Sleep 1
Write-Host -foregroundcolor DarkGray -NoNewLine "."
$service = Get-WmiObject -ComputerName $serverName Win32_Service -Filter "Name='$serviceName'"
}
while ($service.State -ne $serviceState)
Write-Host -foregroundcolor DarkGray -NoNewLine " Service is "
Write-Host -foregroundcolor Gray $serviceState
}
#<summary>
# Starts the SharePoint Timer Service on each server in the SharePoint Farm.
#</summary>
#<param name="$farm">The SharePoint farm object.</param>
function StartSharePointTimerServicesInFarm($farm)
{
Write-Host ""
# Iterate through each server in the farm, and each service in each server
foreach($server in $farm)
{
foreach($instance in $server.ServiceInstances)
{
# If the server has the timer service then start the service
if($instance.TypeName -eq $timerServiceInstanceName)
{
[string]$serverName = $server.Name
Write-Host -foregroundcolor DarkGray -NoNewline "Start '$timerServiceName' service on server: "
Write-Host -foregroundcolor Gray $serverName
$service = Get-WmiObject -ComputerName $serverName Win32_Service -Filter "Name='$timerServiceName'"
sc.exe \\$serverName start $timerServiceName > $null
WaitForServiceState $serverName $timerServiceName "Running"
break;
}
}
}
Write-Host ""
}
#<summary>
# Removes all xml files recursive on an UNC path
#</summary>
#<param name="$farm">The SharePoint farm object.</param>
function DeleteXmlFilesFromConfigCache($farm)
{
Write-Host ""
Write-Host -foregroundcolor DarkGray "Delete xml files"
[string] $path = ""
# Iterate through each server in the farm, and each service in each server
foreach($server in $farm)
{
foreach($instance in $server.ServiceInstances)
{
# If the server has the timer service delete the XML files from the config cache
if($instance.TypeName -eq $timerServiceInstanceName)
{
[string]$serverName = $server.Name
Write-Host -foregroundcolor DarkGray -NoNewline "Deleting xml files from config cache on server: "
Write-Host -foregroundcolor Gray $serverName
# Remove all xml files recursive on an UNC path
$path = "\\" + $serverName + "\c$\ProgramData\Microsoft\SharePoint\Config\*-*\*.xml"
Remove-Item -path $path -Force
break
}
}
}
Write-Host ""
}
#<summary>
# Clears the SharePoint cache on an UNC path
#</summary>
#<param name="$farm">The SharePoint farm object.</param>
function ClearTimerCache($farm)
{
Write-Host ""
Write-Host -foregroundcolor DarkGray "Clear the cache"
[string] $path = ""
# Iterate through each server in the farm, and each service in each server
foreach($server in $farm)
{
foreach($instance in $server.ServiceInstances)
{
# If the server has the timer service then force the cache settings to be refreshed
if($instance.TypeName -eq $timerServiceInstanceName)
{
[string]$serverName = $server.Name
Write-Host -foregroundcolor DarkGray -NoNewline "Clearing timer cache on server: "
Write-Host -foregroundcolor Gray $serverName
# Clear the cache on an UNC path
# 1 = refresh all cache settings
$path = "\\" + $serverName + "\c$\ProgramData\Microsoft\SharePoint\Config\*-*\cache.ini"
Set-Content -path $path -Value "1"
break
}
}
}
Write-Host ""
}
#**************************************************************************************
# Main script block
#**************************************************************************************
# Load SharePoint Powershell Snapin
Load-SharePoint-Powershell
# Get the local farm instance
$farm = Get-SPServer | where {$_.Role -match "Application"}
# Stop the SharePoint Timer Service on each server in the farm
StopSharePointTimerServicesInFarm $farm
# Delete all xml files from cache config folder on each server in the farm
DeleteXmlFilesFromConfigCache $farm
# Clear the timer cache on each server in the farm
ClearTimerCache $farm
# Start the SharePoint Timer Service on each server in the farm
StartSharePointTimerServicesInFarm $farm