Removing a Query Processing Component Server in SharePoint 2013 Search

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Before

After

Script

Step #1 - Clone the Search Topology
$ssa = Get-SPEnterpriseSearchServiceApplication
$active = Get-SPEnterpriseSearchTopology -SearchApplication $ssa -Active
$clone = New-SPEnterpriseSearchTopology -SearchApplication $ssa -Clone –SearchTopology $active

Step #2 - Get the ComponentID to Move
# Get the Search Component ID To Move
$queryComponentID = (Get-SPEnterpriseSearchComponent -SearchTopology $clone -Identity QueryProcessingComponent1).componentID

Note: If you don't know the query component name, use this command to find. Get-SPEnterpriseSearchComponent -SearchTopology $clone

Step #3 - Remove the Search Component from the Original Server
# Remove Search Component
Remove-SPEnterpriseSearchComponent -Identity $queryComponentID.GUID -SearchTopology $clone -confirm:$false

Step #4 - Activate the Search Topology Again
# Activate Search Topology Again
Set-SPEnterpriseSearchTopology -Identity $clone

You are Done...!