MSSQL on Windows: Redo blocked / sec

Microsoft.SQLServer.Windows.CollectionRule.DatabaseReplica.RedoBlockedSec (Rule)

Number of times the REDO thread was blocked in this database since this database was brought ONLINE.

Knowledge Base article:

Summary

Number of times the REDO thread was blocked in this database since this database was brought ONLINE.

Overridable Parameters

Name

Description

Default Value

Enabled

Enables or disables the workflow.

Yes

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.Windows.DatabaseReplica
CategoryPerformanceCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SQLServer.Windows.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.Windows.CollectionRule.DatabaseReplica.RedoBlockedSec" Enabled="true" Target="SqlDiscW!Microsoft.SQLServer.Windows.DatabaseReplica" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">
<Category>PerformanceCollection</Category>
<DataSources>
<DataSource ID="DS" TypeID="Microsoft.SQLServer.Windows.DataSource.SqlOsPerformanceReader">
<MachineName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/MachineName$</MachineName>
<NetbiosComputerName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/NetbiosComputerName$</NetbiosComputerName>
<InstanceName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/InstanceName$</InstanceName>
<ConnectionString>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/ConnectionString$</ConnectionString>
<InstanceVersion>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/Version$</InstanceVersion>
<InstanceEdition>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/Edition$</InstanceEdition>
<MonitoringType>$Target/Host/Host/Property[Type="SqlDiscW!Microsoft.SQLServer.Windows.DBEngine"]/MonitoringType$</MonitoringType>
<SqlExecTimeoutSeconds>60</SqlExecTimeoutSeconds>
<SqlTimeoutSeconds>15</SqlTimeoutSeconds>
<TimeoutSeconds>300</TimeoutSeconds>
<IntervalSeconds>900</IntervalSeconds>
<ObjectName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/PerformanceCounterObject$:Database Replica</ObjectName>
<PerfInstanceName>$Target/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DatabaseReplica"]/AvailabilityDatabaseName$</PerfInstanceName>
<PerfParams>
<NameOfHandler>SqlOsPerfCounterReader</NameOfHandler>
<PerformanceCounterObject>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/PerformanceCounterObject$</PerformanceCounterObject>
<CounterConfig>
<CategoryName>Database Replica</CategoryName>
<CounterName>Redo blocked/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 Replica</ObjectName>
<CounterName>Redo blocked/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>