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Windows 上的 MSSQL: 雜湊貯體中資料列鏈結的平均長度

Microsoft.SQLServer.Windows.MonitorType.DBFilegroupFx.HashIndexAvgChainLength (UnitMonitorType)

此監視器類型會檢查 Windows 上雜湊貯體中資料列鏈結的平均長度。

Element properties:

RunAsMicrosoft.SQLServer.Core.RunAs.Monitoring
AccessibilityInternal
Support Monitor RecalculateFalse

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SQLServer.Windows.DataSource.HashIndexAvgChainLength Default
BagFilter ConditionDetection Microsoft.SQLServer.Windows.ConditionDetection.HashIndexDataMapper Default
HealthState ConditionDetection System.ExpressionFilter Default
WarningState ConditionDetection System.ExpressionFilter Default

Overrideable Parameters:

IDParameterTypeSelectorDisplay NameDescription
IntervalSecondsint$Config/IntervalSeconds$間隔 (秒)每次重複執行工作流程之間的時間間隔 (秒)。
SyncTimestring$Config/SyncTime$同步處理時間同步處理時間使用 24 小時制。可予省略。
SqlExecTimeoutSecondsint$Config/SqlExecTimeoutSeconds$
SqlTimeoutSecondsint$Config/SqlTimeoutSeconds$資料庫連線的逾時 (秒)若工作流程無法在指定的期限之內存取資料庫，將會失敗並登錄一則事件。
TimeoutSecondsint$Config/TimeoutSeconds$逾時 (秒)指定流程被關閉及標示為失敗之前，允許執行的時間。
EmptyBucketPercentThresholdstring$Config/EmptyBucketPercentThreshold$空貯體百分比臨界值表示雜湊索引中空貯體數目的空貯體百分比臨界值。
AvgChainLengthThresholdstring$Config/AvgChainLengthThreshold$平均鏈結長度臨界值表示雜湊貯體中資料列鏈結平均長度的平均鏈結長度臨界值。
ErrorTopLinesstring$Config/ErrorTopLines$顯示索引計數最佳做法中，未設定之索引的顯示計數。

Source Code:

<UnitMonitorType ID="Microsoft.SQLServer.Windows.MonitorType.DBFilegroupFx.HashIndexAvgChainLength" Accessibility="Internal" RunAs="SqlCoreLib!Microsoft.SQLServer.Core.RunAs.Monitoring">

  <MonitorTypeStates>

    <MonitorTypeState ID="Health"/>

    <MonitorTypeState ID="Warning"/>

  </MonitorTypeStates>

  <Configuration>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="MachineName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="NetbiosComputerName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ConnectionString" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceVersion" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceEdition" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="MonitoringType" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="DatabaseName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="IntervalSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SyncTime" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlExecTimeoutSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlTimeoutSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="TimeoutSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="EmptyBucketPercentThreshold" type="xsd:integer"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="AvgChainLengthThreshold" type="xsd:integer"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ErrorTopLines" type="xsd:integer"/>

  </Configuration>

  <OverrideableParameters>

    <OverrideableParameter ID="IntervalSeconds" ParameterType="int" Selector="$Config/IntervalSeconds$"/>

    <OverrideableParameter ID="SyncTime" ParameterType="string" Selector="$Config/SyncTime$"/>

    <OverrideableParameter ID="SqlExecTimeoutSeconds" ParameterType="int" Selector="$Config/SqlExecTimeoutSeconds$"/>

    <OverrideableParameter ID="SqlTimeoutSeconds" ParameterType="int" Selector="$Config/SqlTimeoutSeconds$"/>

    <OverrideableParameter ID="TimeoutSeconds" ParameterType="int" Selector="$Config/TimeoutSeconds$"/>

    <OverrideableParameter ID="EmptyBucketPercentThreshold" ParameterType="string" Selector="$Config/EmptyBucketPercentThreshold$"/>

    <OverrideableParameter ID="AvgChainLengthThreshold" ParameterType="string" Selector="$Config/AvgChainLengthThreshold$"/>

    <OverrideableParameter ID="ErrorTopLines" ParameterType="string" Selector="$Config/ErrorTopLines$"/>

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource TypeID="Microsoft.SQLServer.Windows.DataSource.HashIndexAvgChainLength" ID="DS">

        <MachineName>$Config/MachineName$</MachineName>

        <NetbiosComputerName>$Config/NetbiosComputerName$</NetbiosComputerName>

        <InstanceName>$Config/InstanceName$</InstanceName>

        <ConnectionString>$Config/ConnectionString$</ConnectionString>

        <InstanceVersion>$Config/InstanceVersion$</InstanceVersion>

        <InstanceEdition>$Config/InstanceEdition$</InstanceEdition>

        <MonitoringType>$Config/MonitoringType$</MonitoringType>

        <SqlExecTimeoutSeconds>$Config/SqlExecTimeoutSeconds$</SqlExecTimeoutSeconds>

        <SqlTimeoutSeconds>$Config/SqlTimeoutSeconds$</SqlTimeoutSeconds>

        <TimeoutSeconds>$Config/TimeoutSeconds$</TimeoutSeconds>

        <IntervalSeconds>$Config/IntervalSeconds$</IntervalSeconds>

        <SyncTime>$Config/SyncTime$</SyncTime>

        <EmptyBucketPercentThreshold>$Config/EmptyBucketPercentThreshold$</EmptyBucketPercentThreshold>

        <AvgChainLengthThreshold>$Config/AvgChainLengthThreshold$</AvgChainLengthThreshold>

        <ErrorTopLines>$Config/ErrorTopLines$</ErrorTopLines>

      </DataSource>

      <ConditionDetection ID="BagFilter" TypeID="Microsoft.SQLServer.Windows.ConditionDetection.HashIndexDataMapper">

        <DatabaseName>$Config/DatabaseName$</DatabaseName>

        <Publisher>SQLMonitoringWindows</Publisher>

        <ManagementGroupName>$Target/ManagementGroup/Name$</ManagementGroupName>

      </ConditionDetection>

      <ConditionDetection ID="HealthState" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Property[@Name='Status']</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">Health</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

      <ConditionDetection ID="WarningState" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Property[@Name='Status']</XPathQuery>

            </ValueExpression>

            <Operator>NotEqual</Operator>

            <ValueExpression>

              <Value Type="String">Health</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="Health">

        <Node ID="HealthState">

          <Node ID="BagFilter">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="Warning">

        <Node ID="WarningState">

          <Node ID="BagFilter">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>