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MySQL Server Key Cache Hit Percent Collection

Microsoft.MySQLServer.ManagedServer.Unix.KeyCacheHitPct.Collection (Rule)

This rule collects the current percent of hits on the Key Cache

Knowledge Base article:

Summary

This rule collects performance data for the MySQL Server\ Key Cache Hit Pct performance counter. The collected values are accessible in performance views. This metric exposes the total percentage of key cache hits by the MySQL Server.

Element properties:

TargetMicrosoft.MySQLServer.ManagedServer.Unix
CategoryPerformanceCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.Oss.WSMan.PerfCounterProvider Default
WriteToDB WriteAction Microsoft.SystemCenter.CollectPerformanceData Default
WriteToDW WriteAction Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData Default

Source Code:

<Rule ID="Microsoft.MySQLServer.ManagedServer.Unix.KeyCacheHitPct.Collection" Target="Microsoft.MySQLServer.ManagedServer.Unix" Remotable="true" Enabled="onStandardMonitoring">

  <Category>PerformanceCollection</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Oss!Microsoft.Oss.WSMan.PerfCounterProvider">

      <Interval>300</Interval>

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

      <Uri>http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/MySQL_ServerStatistics?__cimnamespace=root/mysql</Uri>

      <Filter/>

      <SplitItems>true</SplitItems>

      <ObjectName>MySQL Server</ObjectName>

      <CounterName>Key Cache Hit Pct</CounterName>

      <InstanceName>$Data/WsManData/*[local-name(.)='MySQL_ServerStatistics']/*[local-name(.)='InstanceID']$</InstanceName>

      <Value>$Data/WsManData/*[local-name(.)='MySQL_ServerStatistics']/*[local-name(.)='KeyCacheHitPct']$</Value>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectPerformanceData"/>

    <WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>

  </WriteActions>

</Rule>