Consider the following scenario:
You have a multi-node system that is running Windows RT, Windows 8, or Windows Server 2012.
You run an application on multiple nodes.
In this scenario, the full service freezes or the application performance decreases if multiple nodes work for the application at the same time.
This issue occurs because the working tasks on different nodes race with one another. Therefore, the leftover tasks are unpicked up when the thread pool is empty.
To resolve this issue, install update rollup 2975331. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base:
2975331 August 2014 update rollup for Windows RT, Windows 8, and Windows Server 2012
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates