"Upgrade Required" Status in SharePoint 2013 Central Administration Servers in Farm

Problem -

 

"Upgrade Required" error message in SharePoint 2013 server farm?

Background –

After the service pack installation was completed I notice that “Upgrade Require” message was

appearing in Central admin server farm as shown in below screenshot.

I run the configuration wizard right after the installation of Service Pack but the farm status 

continues to show “upgrade required” 

Resolution -


   1. Find out the error in the upgrade log.

   2. To know what objects needed upgrade in the farm. I ran stsadm.exe -o      localupgradestatus after running this I got the list of object and summary out of them filter the “need to upgraded” record.

 <object>
    <name>Microsoft.SharePoint. Administration.SPIisWebSite</name>
    <type>Microsoft.SharePoint. Administration.SPIisWebSite</type>
    <level>5</level>
    <status>Needs Upgrade</status>
 </object>

[25] content database(s) encountered.
[0] content database(s) still need upgrade or cannot be upgraded.
[30] site collection(s) are contained in the content databases.
[0] site collection(s) still need upgrade.
[40] other objects encountered, [1] of them still need upgrade or cannot be upgr
aded.

     I tried to ran the PSConfig.exe   

3. I tried to ran the PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures But it was getting failed every time with the following error message

An exception of type Microsoft.SharePoint.Upgrade.SPUpgradeException was thrown.

Additional exception information: Action 15.0.1.0 of Microsoft.SharePoint.Upgr

     ade.SPIisWebSiteWssSequence failed. 

    4. I also ran the below script that loops through the web applications and pings each one confirming that web application is exists or not 

          $webapps = Get-SPWebApplication

           foreach($web in $webapps)

            {

             ping $web.url.replace(“http:”,””).replace(“https”,””).replace(“/”,””) -n 1

            }

 

    5. I found that few of the web applications removed from SharePoint Central admin but it was still appearing in IIS.

I tried to delete the blank web application from SharePoint Central admin UI as show in      below screenshot 

 

but I was not able to delete it from UI and received the below error.

An object of the type Microsoft.SharePoint. Administration.SPIisWebsiteUnprovisioningJobDefinition named "Unprovisioning SharePoint - 47017" already exists under the parent Microsoft.SharePoint.Administration.SPWebService named "". Rename your object or delete the existing object

        

I used below PowerShell script to delete the orphan Web Application object

      Get-SPTimerJob | where {$_.name -like "*SharePoint - 444*”} |ft id,name

      copy the Timer Job Id

      $job = Get-SPTimerJob -Identity <paste the id here>

      $job.Delete()

After that I deleted the web application successfully using below PS command

 Remove-SPWebApplication http://sharepoint40/ -Confirm  -DeleteIISSite    -RemoveContentDatabases

       After removing all the unused/orphan web application site and application pool from IIS.

   I ran the below PS Script again

PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures

And finally, “Upgrade Require” message disappeared !