HDInsight Yarn Cluster Service Three-State Consecutive Threshold Unit Monitor Type

Microsoft.HDInsight.UnitMonitorType.YarnServiceThreeStateConsecutiveThreshold (UnitMonitorType)

This three-state unit monitor type compares specified Yarn Cluster Service metric against defined thresholds. Monitor chages its state if metric is constantly over the threshold for specified number of last samples.

Element properties:

Show References:
- Unit Monitors (1)

RunAs	Default
Accessibility	Internal
Support Monitor Recalculate	False

Member Modules:

ID	Module Type	TypeId	RunAs
DS	DataSource	Microsoft.HDInsight.Module.YarnServiceMetricsPerformanceDataSource	Default
ConsecutiveSamples	ConditionDetection	System.Performance.ConsecutiveSamplesCondition	Default
CriticalCondition	ConditionDetection	System.ExpressionFilter	Default
HealthyCondition	ConditionDetection	System.ExpressionFilter	Default
WarningCondition	ConditionDetection	System.ExpressionFilter	Default

Overrideable Parameters:

ID	ParameterType	Selector	Display Name	Description
IntervalSeconds	int	$Config/IntervalSeconds$	Interval (sec)
SyncTime	string	$Config/SyncTime$	Sync Time
TimeoutSeconds	int	$Config/TimeoutSeconds$	Timeout (sec)
WarningThreshold	double	$Config/WarningThreshold$	Warning Threshold
CriticalThreshold	double	$Config/CriticalThreshold$	Critical Threshold
NumSamples	int	$Config/NumSamples$	Number of Samples	Number of samples over the threshold collected before monitor changes its state. This number multiplied by the interval determines monitor's reaction time.

Source Code:

<UnitMonitorType ID="Microsoft.HDInsight.UnitMonitorType.YarnServiceThreeStateConsecutiveThreshold" Accessibility="Internal">

  <MonitorTypeStates>

    <MonitorTypeState ID="Healthy" NoDetection="false"/>

    <MonitorTypeState ID="Warning" NoDetection="false"/>

    <MonitorTypeState ID="Critical" NoDetection="false"/>

  </MonitorTypeStates>

  <Configuration>

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

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" minOccurs="0" maxOccurs="1" name="SyncTime" type="xsd:string"/>

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

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

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

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

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

  </Configuration>

  <OverrideableParameters>

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

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

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

    <OverrideableParameter ID="WarningThreshold" Selector="$Config/WarningThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="CriticalThreshold" Selector="$Config/CriticalThreshold$" ParameterType="double"/>

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

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource ID="DS" TypeID="Microsoft.HDInsight.Module.YarnServiceMetricsPerformanceDataSource">

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

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

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

        <PropertyName>$Config/PropertyName$</PropertyName>

        <CounterName>$Config/PropertyName$</CounterName>

      </DataSource>

      <ConditionDetection ID="ConsecutiveSamples" TypeID="Perf!System.Performance.ConsecutiveSamplesCondition">

        <Threshold>$Config/WarningThreshold$</Threshold>

        <Direction>greater</Direction>

      </ConditionDetection>

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

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">SampleValue</XPathQuery>

                </ValueExpression>

                <Operator>LessEqual</Operator>

                <ValueExpression>

                  <Value Type="Double">$Config/WarningThreshold$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">SampleValue</XPathQuery>

                </ValueExpression>

                <Operator>LessEqual</Operator>

                <ValueExpression>

                  <Value Type="Double">$Config/CriticalThreshold$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

      </ConditionDetection>

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

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Integer">Value</XPathQuery>

                </ValueExpression>

                <Operator>GreaterEqual</Operator>

                <ValueExpression>

                  <Value Type="Integer">$Config/NumSamples$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">SampleValue</XPathQuery>

                </ValueExpression>

                <Operator>Greater</Operator>

                <ValueExpression>

                  <Value Type="Double">$Config/WarningThreshold$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">SampleValue</XPathQuery>

                </ValueExpression>

                <Operator>LessEqual</Operator>

                <ValueExpression>

                  <Value Type="Double">$Config/CriticalThreshold$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

      </ConditionDetection>

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

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Integer">Value</XPathQuery>

                </ValueExpression>

                <Operator>GreaterEqual</Operator>

                <ValueExpression>

                  <Value Type="Integer">$Config/NumSamples$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">SampleValue</XPathQuery>

                </ValueExpression>

                <Operator>Greater</Operator>

                <ValueExpression>

                  <Value Type="Double">$Config/CriticalThreshold$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="Healthy">

        <Node ID="HealthyCondition">

          <Node ID="ConsecutiveSamples">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="Warning">

        <Node ID="WarningCondition">

          <Node ID="ConsecutiveSamples">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="Critical">

        <Node ID="CriticalCondition">

          <Node ID="ConsecutiveSamples">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>