SharePoint Search Fails with Correlation ID Provided
After performing a SharePoint 2013 upgrade we were having trouble with our search functions and got a rather generic error message. After doing a migration upgrade of SharePoint 2010 to SharePoint 2013, search failed with: Sorry, something went wrong. A correlation id is provided. We checked our Content Sources from Central Administration->Manage Services on Server->SharePointServer Search->Search Service Application->Content Sources and found that Full Crawls had completed successfully. You will find a TON of log enties for that correlation id, so finding the root cause is daunting. Buried in the results you will find a 500 Service Unavailable error connecting to the Metadata Management Service. In the Search Service Application, we saw that in Queries and Results->Search Dictionaries , we had an error: Managed Meta Data Error The Managed Metadata Service or Connection is currently not available. The Application Pool or Managed Metadata Web Service