Wednesday, May 2, 2012

Search service is not able to connect to the machine that hosts the administration component

A SP2010 Farm with 1 SSA(Search service application). Trying to provision another SSA using UI or Powershell, either ways results in the same behavior. The provisioning completes successfully however when you navigate to the SSA management page for the particular app, it displays the above message with the GUID of the administration component. Key point to observe here is that the search pool account used by SSA1 is the account under which the OSearchv4 service runs. SSA2 which is being provisioned now uses a different service account.

I checked the databases that got created once SSA2 was provisioned and noticed that only the new service account is getting added to them as owner. ULS logs in verbose mode indicates that the OSearchV4 service account is trying to access SSA2's databases and cannot login. Hence the solution to my problem was to simply add the OSearchv4 service account as dbowner to the newly created databases and then wait for some time for the administration component to get provisioned.

Alternatively the below powerhshell can also be executed,
$searchapp=New-SPEnterpriseSearchServiceApplication "SSA2 name"

$searchinstance= Get-SPEnterpriseSearchServiceInstance "servername" 
$searchadmin=Get-SPEnterpriseSearchAdministrationComponent -SearchApplication $searchapp
$searchadmin=Set-SPEnterpriseSearchAdministrationComponent -SearchApplication $searchapp -SearchServiceInstance $searchinstance

Remember to wait at least 5 mins for the provisioning to complete.

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