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MSSQL 2014: Failed to allocate memory for Common Language Runtime (CLR)

Microsoft.SQLServer.2014.Failed_to_allocate_memory_for_Common_Language_Runtime__CLR__5_Rule (Rule)

The rule triggers an alert when SQL Server is unable to allocate memory for CLR.

Knowledge Base article:

Summary

This error may happen when SQL Server is starting. During start up sequence, SQL Server needs a few kilobytes of memory to run the Common Language Runtime. If this memory is not available SQL Server may not be able to start.

Causes

This error is raised when there is not enough memory to run the CLR.

Resolutions

First, try to restart the server. If SQLServer fails to start, check Windows system and application logs to identify errors related to system overload or memory pressure. Verify that there are no hardware issues. Increase the amount of available memory. Restart the computer and try to start SQL Server again. If the problem persists, contact a product vendor.

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:

TargetMicrosoft.SQLServer.2014.DBEngine
CategoryEventCollection
EnabledTrue
Event_ID6289
Event Source$Target/Property[Type="SQL2014Core!Microsoft.SQLServer.2014.DBEngine"]/ServiceName$
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
RemotableTrue
Alert Message
MSSQL 2014: Failed to allocate memory for Common Language Runtime (CLR)
{0}
Event LogApplication
CommentMom2014ID='{60AA6DE5-6CAA-4E24-B038-972C9ED6AC6A}';MOM2014GroupID={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.2014.Failed_to_allocate_memory_for_Common_Language_Runtime__CLR__5_Rule" Target="SQL2014Core!Microsoft.SQLServer.2014.DBEngine" Enabled="true" ConfirmDelivery="true" Remotable="true" Comment="Mom2014ID='{60AA6DE5-6CAA-4E24-B038-972C9ED6AC6A}';MOM2014GroupID={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>6289</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>PublisherName</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>$Target/Property[Type="SQL2014Core!Microsoft.SQLServer.2014.DBEngine"]/ServiceName$</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

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

      <Priority>1</Priority>

      <Severity>2</Severity>

      <AlertMessageId>$MPElement[Name="Microsoft.SQLServer.2014.Failed_to_allocate_memory_for_Common_Language_Runtime__CLR__5_Rule.AlertMessage"]$</AlertMessageId>

      <AlertParameters>

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

      </AlertParameters>

      <Suppression>

        <SuppressionValue/>

      </Suppression>

    </WriteAction>

  </WriteActions>

</Rule>