HDInsight API Synthetic Transaction Monitor Type

Microsoft.HDInsight.UnitMonitorType.SyntheticTransaction (UnitMonitorType)

This two-state unit monitor type executes synthetic transaction against Ambari API and checks the response status code.

Element properties:

Member Modules:

Overrideable Parameters:

Source Code:

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

  <MonitorTypeStates>

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

    <MonitorTypeState ID="Unhealthy" 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="UnhealthyStatusPattern" type="xsd:string"/>

  </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"/>

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

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

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

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

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

        <BaseUri>$Target/Property[Type="Microsoft.HDInsight.Ambari"]/AmbariUri$</BaseUri>

        <TransactionUriSegment>$Target/Property[Type="Microsoft.HDInsight.Ambari"]/ClustersQueryUriSegment$</TransactionUriSegment>

      </DataSource>

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

        <Expression>

          <Or>

            <Expression>

              <Not>

                <Expression>

                  <Exists>

                    <ValueExpression>

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

                    </ValueExpression>

                  </Exists>

                </Expression>

              </Not>

            </Expression>

            <Expression>

              <RegExExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>DoesNotMatchRegularExpression</Operator>

                <Pattern>$Config/UnhealthyStatusPattern$</Pattern>

              </RegExExpression>

            </Expression>

          </Or>

        </Expression>

      </ConditionDetection>

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

        <Expression>

          <RegExExpression>

            <ValueExpression>

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

            </ValueExpression>

            <Operator>MatchesRegularExpression</Operator>

            <Pattern>$Config/UnhealthyStatusPattern$</Pattern>

          </RegExExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="Healthy">

        <Node ID="HealthyCondition">

          <Node ID="DS"/>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="Unhealthy">

        <Node ID="UnhealthyCondition">

          <Node ID="DS"/>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>