The search request was unable to connect to the Search Service

Article ID: 2480674 - View products that this article applies to.
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Symptom

Recieving the error "The search request was unable to connect to the Search Service" when searching FAST Search from SharePoint, and common scenarios documented on TechNetdo not apply.

Cause

The TechNet article outlines the processes involved, and how any breakdown in communication may result in this error message. The processes may show up as "Dead' in the "nctrl status" output, or they may be running but unresponsive to requests. Both can indicate problems during initialization, and the following errors may be found in the logs of the three processes noted in section 2 of the TechNet article:

QRServer: Unrecognized attribute 'allowInsecureTransport'
QRProxy: Could not load file or assembly 'Microsoft.IdentityModel ...'
SAMWorker: Could not load type 'System.ServiceModel.Description.DispatcherSynchronizationBehavior'

All messages above indicate missing prerequisites that are required to be installed prior to starting FAST Search. They are normally installed by the FAST Search Prerequisite installer.

Resolution

The individual packages can be installed directly, from the full list of downloads available here:

http://technet.microsoft.com/en-us/library/ff381270.aspx
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Properties

Article ID: 2480674 - Last Review: May 3, 2012 - Revision: 5.0
APPLIES TO
  • Microsoft FAST Search Server 2010 for SharePoint
Keywords: 
KB2480674

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