The crawl history Web Part does not display on the Search Administration page in SharePoint Server 2010

Symptoms

Assume that the crawl history retains 90 days of crawl history logs in Microsoft SharePoint Server 2010. In this situation, the crawl history Web Part does not display on the Search Administration page. 

Note The crawl history table contains lots of rows when it retains more than 90 days of crawl history logs.  

Resolution

To resolve this issue, apply this following hotfix packages: 

• 2516471 Description of the SharePoint Server 2010 hotfix package (osrchwfe-x-none.msp): April 26, 2011

• 2516472 Description of the SharePoint Server 2010 hotfix package (sts-x-none.msp): April 26, 2011

Note After you apply these hotfix packages, you must set the crawl history’s retention period to a value less than 90 days. This will reduce the number of rows in the crawl history table. To do this, run the following PowerShell commands.

1. Get the Search Service Application ID:
   

   Get-SPServiceApplication 

2. Get the Search Service Application object:
   

   $searchApp = Get-SPServiceApplication | Where {$_.Id -eq "Search Service Application ID"} 

3. Set the CrawlLogCleanUpIntervalInDays property:
   

   Set CrawlLogCleanUpIntervalInDays. 
   $searchApp.CrawlLogCleanUpIntervalInDays = Retention Period$searchApp.Update()

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.