Powershell Script to Create Seach service applicaiton in Sharepoint 2013

 

1) Clean up inactive Query/Crawl topology from SSA

foreach($ssa in Get-SPEnterpriseSearchServiceApplication){

    $ssa | get-SPenterpriseSearchCrawlTopology | where {$_.state -eq “Inactive”} | Remove-SPEnterpriseSearchCrawlTopology -confirm:$false

    $ssa | get-SPenterpriseSearchQueryTopology | where {$_.state -eq “Inactive”} | Remove-SPEnterpriseSearchQueryTopology -confirm:$false

}

2) Setting up some initial variables.

$SSAName = "SSA1"

$SVCAcct = "contoso\spsvc"

$SSI = Get-SPEnterpriseSearchServiceInstance -local

$err = $null

3) Start Services search services for SSI

Start-SPEnterpriseSearchServiceInstance -Identity $SSI

4) Create an Application Pool.

$AppPool = new-SPServiceApplicationPool -name $SSAName"-AppPool" -account $SVCAcct

5) Create the SearchApplication and set it to a variable  ( This might take couple minutes)

$SearchApp = New-SPEnterpriseSearchServiceApplication -Name $SSAName -applicationpool $AppPool -databasename $SSAName"_AdminDB"

6) Create search service application proxy

$SSAProxy = new-spenterprisesearchserviceapplicationproxy -name $SSAName"ApplicationProxy" -Uri $SearchApp.Uri.AbsoluteURI

7) Provision Search Admin Component. ( This might take couple minutes)

Set-SPEnterpriseSearchAdministrationComponent -searchapplication $SearchApp  -searchserviceinstance $SSI

8) Create a new Crawl Topology.

$CrawlTopo = $SearchApp | New-SPEnterpriseSearchCrawlTopology

9) Set Crawl Store variable.

$CrawlStore = $SearchApp | Get-SPEnterpriseSearchCrawlDatabase

10) Create a new Crawl Component.

New-SPEnterpriseSearchCrawlComponent -CrawlTopology $CrawlTopo -CrawlDatabase $CrawlStore -SearchServiceInstance $SSI

11) Activate the Crawl Topology. ( This might take couple minutes)

do

{

    $err = $null 

    $CrawlTopo | Set-SPEnterpriseSearchCrawlTopology -Active -ErrorVariable err

    if ($CrawlTopo.State -eq "Active")

    {

        $err = $null

    }

    Start-Sleep -Seconds 10

}

until ($err -eq $null)

12) Create a new Query Topology.

$QueryTopo = $SearchApp | New-SPenterpriseSEarchQueryTopology -partitions 1

13) Set Query Partition variable

$Partition1 = ($QueryTopo | Get-SPEnterpriseSearchIndexPartition)

14) Create a Query Component.

New-SPEnterpriseSearchQueryComponent -indexpartition $Partition1 -QueryTopology $QueryTopo -SearchServiceInstance $SSI

15) Create a variable for the Property Store DB.

$PropDB = $SearchApp | Get-SPEnterpriseSearchPropertyDatabase

16) Set the Query Partition to use the Property Store DB.

$Partition1 | Set-SPEnterpriseSearchIndexPartition -PropertyDatabase $PropDB

17) Activate the Query Topology. ( This might take couple minutes)

do

{

    $err = $null

    $QueryTopo | Set-SPEnterpriseSearchQueryTopology -Active -ErrorVariable err -ErrorAction SilentlyContinue

    Start-Sleep -Seconds 10

    if ($QueryTopo.State -eq "Active")

        {

            $err = $null

        }

}

until ($err -eq $null)

Write-host "Your search application $SSAName is now ready"

18) Remember to start SQSS service to make crawl and query work.