FIX: Thread buildup in WCF receive host when receive location is disabled in BizTalk Server

Symptoms
Assume that you have a WCF receive location in Microsoft BizTalk Server 2010, BizTalk Server 2013 R2, or BizTalk Server 2013. You disable the receive location, and a client application continues to make calls to this disabled receive location. In this situation, the thread count and memory consumption of the WCF host grow. This growth keeps continuing while the receive location is disabled.
Cause
This issue occurs because the time-out value of WCF does not synchronize with the receive time-out when there is no data to poll. Additionally, WCF opens a new channel and waits for messages on the new channel, and this may cause a memory leak.
Resolution

Cumulative update information

This issue was first fixed in the following cumulative update of BizTalk Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
For information about the service packs and cumulative update list for BizTalk Server, see KB 2555976: Service pack and cumulative update list for BizTalk Server.

For more information about BizTalk Server hotfixes, see KB 2003907: Information about BizTalk hotfixes and Service Pack support.
Properties

Article ID: 3021233 - Last Review: 10/09/2015 23:34:00 - Revision: 3.0

Microsoft BizTalk Server Branch 2010, Microsoft BizTalk Server Developer 2010, Microsoft BizTalk Server Enterprise 2010, Microsoft BizTalk Server Standard 2010, Microsoft BizTalk Server 2013 R2 Branch, Microsoft BizTalk Server 2013 R2 Developer, Microsoft BizTalk Server 2013 R2 Enterprise, Microsoft BizTalk Server 2013 R2 Standard, Microsoft BizTalk Server 2013 Branch, Microsoft BizTalk Server 2013 Developer, Microsoft BizTalk Server 2013 Enterprise, Microsoft BizTalk Server 2013 Standard

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