FIX: MQSeries adapter can't receive messages larger than fragment size and causes high CPU and network traffic in BizTalk Server

Assume that you are using the MQSeries adapter to receive and process messages in Microsoft BizTalk Server, and you have an MQSeries queue that contains messages that are larger than the fragment size that is configured on the Adapter. In this situation, the BizTalk server may go into a loop and consume high network traffic and CPU activity. Additionally, the BizTalk server may consume many large temporary files until the BizTalk process crashes.

This problem is fixed in the following cumulative updates for BizTalk Server:

Cumulative Update 5 for Microsoft BizTalk Server 2016

Cumulative Update 8 for Microsoft BizTalk Server 2013 R2

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For information about the service packs and cumulative update list for BizTalk Server, click the following article number to view the article in the Microsoft Knowledge Base:

2555976 Service pack and cumulative update list for BizTalk Server

For more information about BizTalk Server hotfixes, click the following article number to view the article in the Microsoft Knowledge Base:

2003907 Information about BizTalk hotfixes and Service Pack support