Get a warning in event log.

Log Name:      Application
Source:        BizTalk Server
Date:          3/5/2015 9:23:59 AM
Event ID:      5740
Task Category: BizTalk Server
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      BizTalk_Server
Description:
The adapter "SQL" raised an error message. Details "The Messaging Engine is shutting down. ".
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="BizTalk Server" />
    <EventID Qualifiers="32960">5740</EventID>
    <Level>3</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-03-05T01:23:59.000000000Z" />
    <EventRecordID>83145</EventRecordID>
    <Channel>Application</Channel>
    <Computer>BizTalk_Server</Computer>
    <Security />
  </System>
  <EventData>
    <Data>SQL</Data>
    <Data>The Messaging Engine is shutting down. </Data>
  </EventData>
</Event>