Users reported that they couldn’t find a few specific documents when searching within SharePoint 2013.  Checking the crawl log showed documents with the error “The item failed due to an error occurring when sending or receiving data to the external content processing enrichment web service.”  I searched the ULS for one of the effected documents and found the error “System.Net.WebException: The remote server returned an error: (413) Request Entity Too Large.”  Checking the web.config for the content enrichment web service showed the maxReceivedMessageSize value was configured to 8 MB.

To resolve the error I increased the value of the maxReceivedMessageSize property and re-indexed the document library.

The interesting thing about this case is that the content enrichment web service is designed to add additional metadata to documents.  When the content enrichment web service failed to receive documents over 8 MB the documents didn’t appear within search at all, it wasn’t just the case that they appeared but without the extra metadata.

If you check the crawl logs for SharePoint 2013 you may see warnings similar to those below:

The item has been truncated in the index because it exceeds the maximum size.

This item was partially parsed. The item has been truncated in the index because it exceeds the maximum size.

This item was truncated because the parsed output was greater than the maximum number of allowed characters.

Microsoft have detailed the SharePoint 2013 Search boundaries and limits here and I’ll show how these boundaries and limits relate to the warnings above.

The item has been truncated in the index because it exceeds the maximum size.

This message relates to the indexed managed property size and according to the aforementioned documentation “This is the default maximum size of a managed property that is set to either “searchable” or “queryable”.”  The property limit can be configured between 0 and 2048KB.

In order to change the limit open an elevated SharePoint 2013 Management Shell.  To get the current property value run the code below.

$p = Get-SPEnterpriseSearchMetadataManagedProperty -Identity body -SearchApplication (Get-SPEnterpriseSearchServiceApplication)
$p.MaxCharactersInPropertyStoreIndex

To change the property value run the code below, substituting the value for your own requirements.

$prop1 = Get-SPEnterpriseSearchMetadataManagedProperty -Identity body -SearchApplication (Get-SPEnterpriseSearchServiceApplication)
$prop1.MaxCharactersInPropertyStoreIndex = “2048000”
$prop1.Update()

This item was partially parsed. The item has been truncated in the index because it exceeds the maximum size.

This message  relates to the retrievable managed property size and according to the aforementioned documentation “This is the default maximum size of a retrievable managed property.”  The property limit can be configured between 0 and 2048KB.

In order to change the limit open an elevated SharePoint 2013 Management Shell.  To get the current property value run the code below.

$p = Get-SPEnterpriseSearchMetadataManagedProperty -Identity body -SearchApplication (Get-SPEnterpriseSearchServiceApplication)
$p.MaxCharactersInPropertyStoreForRetrieval

To change the property value run the code below, substituting the value for your own requirements.

$prop2 = Get-SPEnterpriseSearchMetadataManagedProperty -Identity body -SearchApplication (Get-SPEnterpriseSearchServiceApplication)
$prop2.MaxCharactersInPropertyStoreForRetrieval = “2048000”
$prop2.Update()

This item was truncated because the parsed output was greater than the maximum number of allowed characters.

This message relates to the parsed content size of the document.  This has a boundary limit of 2 million characters that can’t be increased.  Search stops parsing a document once the limit of 2 million characters has been reached and any content past this point isn’t included in the index.

Once you’ve configured the indexed managed property and retrievable managed property sizes you need to run a full crawl.

The SharePoint Document ID Service is a Site Collection Feature which assigns unique IDs to documents within a Site Collection.  The unique document ID can be used to locate documents within a Site Collection irrespective of their location.  This is useful when documents may be moved around within a Site Collection due to work flows, or other processes.

To search by document ID, open the Service Service Application through Central Administration, then open the search schema, which is under Queries and Results.  Search for DocID in the managed properties box.

The search results should return a managed property with the name DocID and the Query property should be enabled.  The property should be mapped to the crawled property ows_dlc_DocId.

The Query property enables the ability to search specifically by the property.  Open your search center and in the search box enter DocID:%DOCID% where you replace %DOCID% with the document ID for which you wish to search.

Here I have a document with the ID RSTST-7-144

I have found the document using the search term DocId:RSTST-7-144

By default, SharePoint 2013 Search shows 5 options for each refiner, except result type, which has 6 options.

In order to change the number of options you need to edit the Filter_Default.html display template.  Do to this open Site settings, then Master pages and page layouts.  Drill through to  Display Templates -> Filters.  Download a copy of Filter_Default.html.

Open Filter_Default.html in a text editor and find the two values below.

Change the values for shortListSize as required and save the file.  Upload the file to the document library where you downloaded the copy and overwrite the existing file.  Refresh the search page to see the change.

Within SharePoint 2013 you have the ability to create an Asset Library.  This is a special type of SharePoint library, which is optimised for the storing of image, audio, or video files.  If you’re not familiar with this type of library take a look at this TechNet article.

One of the nice features of the Asset Library is the keywords column.  This enables you to assign metadata in the form of keywords, which can help with the discovery of library items using search.  For example, an image of an car could have the keywords transport or vehicle assigned to it.  Then, if a user searched for car, transport, or vehicle they would find the image.

I’m going to show the configuration required to enable searching for items using keywords.  Firstly, open the Asset Library settings and check the name of the keywords column.

Next, navigate to Central Administration and open the Search Service Application from Application Management > Manage service applications.  Open the Search Schema.

Click on Crawled Properties and enter keywords, then click the green arrow to search.

Click on the managed property called Keywords.  On the page that loads, tick the Searchable box and click Ok to save the changes.  Now, re-index the Asset Library, open the library settings, then Advanced settings.

Once the crawl has completed you’ll be able to search for images using keywords.

Opening SharePoint 2013 Search Service Application and viewing the crawl health reports results in the error “The chart cannot be rendered. This may be due to a misconfiguration of the Microsoft SharePoint Server State Service. For more information, contact your server administrator. ”

In order to resolve this error run the commands below from and elevated SharePoint PowerShell 2013 management shell.

$Service = New-SPStateServiceApplication -Name “State Service”
New-SPStateServiceDatabase -Name “State Service DB” -ServiceApplication $Service
New-SPStateServiceApplicationProxy -Name “State Service Proxy” -ServiceApplication $Service -DefaultProxyGroup

SharePoint 2013 search hides duplicate results by default.  In order to view duplicate search results following the following steps.

Edit the search result page and edit the Search Results web part

Expand the Settings section and tick the box for “Show View Duplicates link”.

Save the setting and publish the page.  When you search for a term, hover over a search result.  In the panel that loads click on VIEW DUPLICATES.

For information on how SharePoint calculates duplicates see this blog post.