Using PowerShell to alter SharePoint Search Topology

When creating a new search service, either a cloud search service or a normal one, it is best practice to break out the components across multiple servers in the SharePoint farm. This is easily accomplished through PowerShell.

The script below is for a three server farm (one application server and two web front end servers) and will break out the services as follows:

APP01	Crawl Component Content Processing Component Analytics Processing Component
WFE01	Administration Component Query Component Index Component
WFE02	Administration Component Query Component Index Component

Before running the script, replace the Environment Details section with the relevant information and ensure that the search service instance is started on all the servers by using the Start-SPEnterpriseSearchServiceInstance command. If you run a Get-SPEnterpriseSearchServiceInstance for each server, they should return as Online.

Add-PSSnapin Microsoft.SharePoint.PowerShell

# ***** Environment Details *****

$SSAName = "Search Service Application Name"

$APP01 = "Application Server"

$WFE01 = "Web Front End Server 1"

$WFE02 = "Web Front End Server 2"

# Get Service Instance on all servers

$col = $host.ui.RawUI.ForegroundColor

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "Getting Search Service Instance"

$host.ui.RawUI.ForegroundColor = "Green"

$SSI1 = Get-SPEnterpriseSearchServiceInstance -Identity $APP01

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "... $APP01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

$SSI2 = Get-SPEnterpriseSearchServiceInstance -Identity $WFE01

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "... $WFE01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

$SSI3 = Get-SPEnterpriseSearchServiceInstance -Identity $WFE02

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "... $WFE02"

Write-Output " "

Write-Output "Complete."

Write-Output " "

# Retrieve Search Service Instance and create topology

Write-Output "Creating Topology"

$SSA = Get-SPEnterpriseSearchServiceApplication -Identity $SSAName

$Topology = New-SPEnterpriseSearchTopology -SearchApplication $ssa

Write-Output "...Crawl Component on $APP01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchCrawlComponent -SearchTopology $Topology -SearchServiceInstance $SSI1

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Content Processing Component on $APP01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchContentProcessingComponent -SearchTopology $Topology -SearchServiceInstance $SSI1

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Analytics Processing Component on $APP01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchAnalyticsProcessingComponent -SearchTopology $Topology -SearchServiceInstance $SSI1

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Administration Component on $WFE01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchAdminComponent -SearchTopology $Topology -SearchServiceInstance $SSI2

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Query Component on $WFE01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchQueryProcessingComponent -SearchTopology $Topology -SearchServiceInstance $SSI2

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Index Component on $WFE01"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchIndexComponent -SearchTopology $Topology -SearchServiceInstance $SSI2 -IndexPartition 0

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Administration Component on $WFE02"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchAdminComponent -SearchTopology $Topology -SearchServiceInstance $SSI3

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Query Component on $WFE02"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchQueryProcessingComponent -SearchTopology $Topology -SearchServiceInstance $SSI3

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "...Index Component on $WFE02"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

New-SPEnterpriseSearchIndexComponent -SearchTopology $Topology -SearchServiceInstance $SSI3 -IndexPartition 0

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output " "

Write-Output "Complete"

# Activate Search Toplogy

Write-Output "Applying new Topology"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

Set-SPEnterpriseSearchTopology -Identity $Topology

$host.ui.RawUI.ForegroundColor = "Blue"

Write-Output "Compete"

$host.ui.RawUI.ForegroundColor = "DarkGreen"

Get-SPEnterpriseSearchTopology -SearchApplication $ssa

Get-SPEnterpriseSearchStatus -SearchApplication $ssa -Text

$host.ui.RawUI.ForegroundColor = $col

Further detail can be found in this Technet article.

 

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