MSSQL on Linux: DB Log Flushes per Second

Microsoft.SQLServer.Linux.CollectionRule.Database.LogFlushesPerSec (Rule)

Collects the "Log flushes per second" performance counter for each database of SQL DB Engine on Linux. The rule is disabled by default. Use overrides to enable it when necessary.

Knowledge Base article:

Summary

Collects Log flushes per second for each database of SQL DB Engine on Linux.

Overridable Parameters

Name

Description

Default Value

Enabled

Enables or disables the workflow.

No

Interval (seconds)

The recurring interval of time in seconds in which to run the workflow.

900

Timeout (seconds)

Specifies the time the workflow is allowed to run before being closed and marked as failed.

300

Timeout for query execution (seconds)

The workflow will fail and register an event, if the query execution takes longer than the specified period.

60

Timeout for database connection (seconds)

The workflow will fail and register an event, if it cannot access the database during the specified period.

15

Element properties:

TargetMicrosoft.SQLServer.Linux.Database
CategoryPerformanceCollection
EnabledFalse
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SQLServer.Linux.DataSource.SqlOsPerformanceReader Default
Mapper ConditionDetection System.Performance.DataGenericMapper Default
WriteToDB WriteAction Microsoft.SystemCenter.CollectPerformanceData Default
WriteToDW WriteAction Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData Default

Source Code:

<Rule ID="Microsoft.SQLServer.Linux.CollectionRule.Database.LogFlushesPerSec" Enabled="false" Target="SqlDiscL!Microsoft.SQLServer.Linux.Database" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">
<Category>PerformanceCollection</Category>
<DataSources>
<DataSource ID="DS" TypeID="Microsoft.SQLServer.Linux.DataSource.SqlOsPerformanceReader">
<MachineName>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/MachineName$</MachineName>
<NetbiosComputerName>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/NetbiosComputerName$</NetbiosComputerName>
<InstanceName>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/InstanceName$</InstanceName>
<ConnectionString>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/ConnectionString$</ConnectionString>
<InstanceVersion>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/Version$</InstanceVersion>
<InstanceEdition>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/Edition$</InstanceEdition>
<SqlExecTimeoutSeconds>60</SqlExecTimeoutSeconds>
<SqlTimeoutSeconds>15</SqlTimeoutSeconds>
<TimeoutSeconds>300</TimeoutSeconds>
<IntervalSeconds>900</IntervalSeconds>
<ObjectName>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/PerformanceCounterObject$:Databases</ObjectName>
<PerfInstanceName>$Target/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.Database"]/DatabaseName$</PerfInstanceName>
<PerfParams>
<NameOfHandler>SqlOsPerfCounterReader</NameOfHandler>
<PerformanceCounterObject>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/PerformanceCounterObject$</PerformanceCounterObject>
<CounterConfig>
<CategoryName>Databases</CategoryName>
<CounterName>Log Flushes/sec</CounterName>
<BaseCounterName/>
<InstanceSelector>0</InstanceSelector>
<NeedsPrefix>1</NeedsPrefix>
<InstanceIndex>0</InstanceIndex>
</CounterConfig>
</PerfParams>
</DataSource>
</DataSources>
<ConditionDetection ID="Mapper" TypeID="SystemPerf!System.Performance.DataGenericMapper">
<ObjectName>SQL Database</ObjectName>
<CounterName>Log Flushes/sec</CounterName>
<InstanceName/>
<Value>$Data/Property[@Name='CounterValue']$</Value>
</ConditionDetection>
<WriteActions>
<WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectPerformanceData"/>
<WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>
</WriteActions>
</Rule>