MSSQL 2016: Failed to create AppDomain

Microsoft.SQLServer.2016.Failed_to_create_AppDomain_5_Rule (Rule)

The rule triggers an alert when an application tried to create an application domain, but failed. This may be caused when there is not enough memory to start the application domain.

Knowledge Base article:

Summary

An application tried to create an application domain, but failed. This may be caused when there is not enough memory to start the application domain.

Causes

This error occurs when there is not enough memory available to create a new AppDomain.

Resolutions

Verify that there are no hardware issues. Check Windows system and application logs to identify errors related to system stress or memory. Increase the amount of available memory. Consider the following solutions to increase available memory:

Increase the size of the paging file.
Restart the server with the -g memory_to_reserve option to increase the amount of memory that SQL Server will leave available for memory allocations within the SQL Server process.
Add physical memory. On a 32-bit system you can add more than 4 GB physical memory if you use Microsoft Windows Address Windowing Extension (AWE).
Restart the computer and run again. If the problem persists, contact a product support provider.

External

For more information see "Using AWE" in SQL Server 2016 Books Online.

For more information see "Using the SQL Server Service Startup Options" in SQL Server 2016 Books Online.

Overrideable Parameters

Name	Description	Default Value
Enabled	Enables or disables the workflow.	Yes
Priority	Defines Alert Priority.	1
Severity	Defines Alert Severity.	2

Element properties:

Target

Microsoft.SQLServer.2016.DBEngine

Category

EventCollection

Enabled

True

Event_ID

6517

Event Source

$Target/Property[Type="SQL2016Core!Microsoft.SQLServer.2016.DBEngine"]/ServiceName$

Alert Generate

True

Alert Severity

Error

Alert Priority

Normal

Remotable

True

Alert Message

MSSQL 2016: Failed to create AppDomain

{0}

Event Log

Application

Comment

Mom2016ID='{F5B309A3-6BDF-4E0E-B928-D00493ABBFC4}';MOM2016GroupID={467ECC75-C5DA-42BD-955C-A73BBB51AF74}

Member Modules:

ID	Module Type	TypeId	RunAs
_F6DA1507_12AF_11D3_AB21_00A0C98620CE_	DataSource	Microsoft.Windows.EventProvider	Default
GenerateAlert	WriteAction	System.Health.GenerateAlert	Default

Source Code:

<Rule ID="Microsoft.SQLServer.2016.Failed_to_create_AppDomain_5_Rule" Target="SQL2016Core!Microsoft.SQLServer.2016.DBEngine" Enabled="true" ConfirmDelivery="true" Remotable="true" Comment="Mom2016ID='{F5B309A3-6BDF-4E0E-B928-D00493ABBFC4}';MOM2016GroupID={467ECC75-C5DA-42BD-955C-A73BBB51AF74}">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="_F6DA1507_12AF_11D3_AB21_00A0C98620CE_" Comment="{F6DA1507-12AF-11D3-AB21-00A0C98620CE}" TypeID="Windows!Microsoft.Windows.EventProvider">

      <ComputerName>$Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

      <LogName>Application</LogName>

      <Expression>

        <And>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>EventDisplayNumber</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>6517</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>PublisherName</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>$Target/Property[Type="SQL2016Core!Microsoft.SQLServer.2016.DBEngine"]/ServiceName$</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="GenerateAlert" TypeID="SystemHealth!System.Health.GenerateAlert">

      <Priority>1</Priority>

      <Severity>2</Severity>

      <AlertMessageId>$MPElement[Name="Microsoft.SQLServer.2016.Failed_to_create_AppDomain_5_Rule.AlertMessage"]$</AlertMessageId>

      <AlertParameters>

        <AlertParameter1>Event ID: $Data/EventDisplayNumber$. $Data/EventDescription$</AlertParameter1>

      </AlertParameters>

      <Suppression>

        <SuppressionValue/>

      </Suppression>

    </WriteAction>

  </WriteActions>

</Rule>