Perguntas[jmeter](coding)

Tenho um requisito para executar um teste de carga baseado no TPS.

10 requests per second - 10 minutes
20 requests per second - 10 minutes
50 requests per second - 10 minutes
100 requests per second - 30 minutes

A duração total do teste deve ser de uma hora.

Tentei fazer isso usando o Ultimate thread group, o throughput controller e o throughput timer. Mas o design parece muito bagunçado e complicado.

Por favor, nos esclareça se temos algum grupo de threads específico para executar um teste de carga com base no TPS?

Desde já, obrigado..

Tenho a seguinte descrição de grupo de threads com 120 usuários, um tempo de inicialização de 60 segundos e o teste deve ser executado (adicionalmente?) por 120 segundos.

Depois de executar o teste, eu queria ver meus threads ativos ao longo do tempo. Eu esperaria ter 120 threads após 60 segundos. No entanto, eu obtenho o seguinte gráfico:

O que eu entendi errado?

Tenho um plano de teste JMeter com um sampler fictício e um Constant Throughput Timer adicionado como seu filho. Quero atingir uma meta de 10 TPS, então defino o throughput para 600 amostras por minuto, Usuários - 10. No entanto, após executar o teste, esperava que ele atingisse 10 TPS, mas não está funcionando como esperado. Alguém pode me ajudar a identificar o que posso estar fazendo errado?

 <?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.6.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan" enabled="true">
      <boolProp name="TestPlan.functional_mode">false</boolProp>
      <boolProp name="TestPlan.tearDown_on_shutdown">false</boolProp>
      <boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
    </TestPlan>
    <hashTree>
      <Arguments guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
        <collectionProp name="Arguments.arguments">
          <elementProp name="TPM_TO_ACHIEVE" elementType="Argument">
            <stringProp name="Argument.name">TPM_TO_ACHIEVE</stringProp>
            <stringProp name="Argument.value">${__P(TPM_TO_ACHIEVE,600.0)}</stringProp>
            <stringProp name="Argument.metadata">=</stringProp>
          </elementProp>
          <elementProp name="TOTALDURATION" elementType="Argument">
            <stringProp name="Argument.name">TOTALDURATION</stringProp>
            <stringProp name="Argument.value">${__P(sz_duration,60)}</stringProp>
            <stringProp name="Argument.metadata">=</stringProp>
          </elementProp>
          <elementProp name="API_Invoked" elementType="Argument">
            <stringProp name="Argument.name">API_Invoked</stringProp>
            <stringProp name="Argument.value">true</stringProp>
            <stringProp name="Argument.metadata">=</stringProp>
          </elementProp>
        </collectionProp>
      </Arguments>
      <hashTree/>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group">
        <intProp name="ThreadGroup.num_threads">10</intProp>
        <intProp name="ThreadGroup.ramp_time">10</intProp>
        <stringProp name="ThreadGroup.duration">${TOTALDURATION}</stringProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
        <boolProp name="ThreadGroup.scheduler">true</boolProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <intProp name="LoopController.loops">-1</intProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
      </ThreadGroup>
      <hashTree>
        <IfController guiclass="IfControllerPanel" testclass="IfController" testname="If Controller">
          <boolProp name="IfController.evaluateAll">false</boolProp>
          <boolProp name="IfController.useExpression">false</boolProp>
          <stringProp name="IfController.condition">&quot;${API_Invoked}&quot;==&quot;true&quot;</stringProp>
        </IfController>
        <hashTree>
          <kg.apc.jmeter.samplers.DummySampler guiclass="kg.apc.jmeter.samplers.DummySamplerGui" testclass="kg.apc.jmeter.samplers.DummySampler" testname="jp@gc - Dummy Sampler">
            <boolProp name="WAITING">true</boolProp>
            <boolProp name="SUCCESFULL">true</boolProp>
            <stringProp name="RESPONSE_CODE">200</stringProp>
            <stringProp name="RESPONSE_MESSAGE">OK</stringProp>
            <stringProp name="REQUEST_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
            <stringProp name="RESPONSE_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
            <stringProp name="RESPONSE_TIME">${__Random(50,500)}</stringProp>
            <stringProp name="LATENCY">${__Random(1,50)}</stringProp>
            <stringProp name="CONNECT">${__Random(1,5)}</stringProp>
            <stringProp name="URL"></stringProp>
            <stringProp name="RESULT_CLASS">org.apache.jmeter.samplers.SampleResult</stringProp>
          </kg.apc.jmeter.samplers.DummySampler>
          <hashTree>
            <ConstantThroughputTimer guiclass="TestBeanGUI" testclass="ConstantThroughputTimer" testname="Constant Throughput Timer">
              <stringProp name="throughput">${TPM_TO_ACHIEVE}</stringProp>
              <intProp name="calcMode">2</intProp>
            </ConstantThroughputTimer>
            <hashTree/>
          </hashTree>
        </hashTree>
        <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree">
          <boolProp name="ResultCollector.error_logging">true</boolProp>
          <objProp>
            <name>saveConfig</name>
            <value class="SampleSaveConfiguration">
              <time>true</time>
              <latency>true</latency>
              <timestamp>true</timestamp>
              <success>true</success>
              <label>true</label>
              <code>true</code>
              <message>true</message>
              <threadName>true</threadName>
              <dataType>true</dataType>
              <encoding>false</encoding>
              <assertions>true</assertions>
              <subresults>true</subresults>
              <responseData>false</responseData>
              <samplerData>false</samplerData>
              <xml>false</xml>
              <fieldNames>true</fieldNames>
              <responseHeaders>false</responseHeaders>
              <requestHeaders>false</requestHeaders>
              <responseDataOnError>false</responseDataOnError>
              <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
              <assertionsResultsToSave>0</assertionsResultsToSave>
              <bytes>true</bytes>
              <sentBytes>true</sentBytes>
              <url>true</url>
              <threadCounts>true</threadCounts>
              <idleTime>true</idleTime>
              <connectTime>true</connectTime>
            </value>
          </objProp>
          <stringProp name="filename"></stringProp>
        </ResultCollector>
        <hashTree/>
        <kg.apc.jmeter.vizualizers.CorrectedResultCollector guiclass="kg.apc.jmeter.vizualizers.TransactionsPerSecondGui" testclass="kg.apc.jmeter.vizualizers.CorrectedResultCollector" testname="jp@gc - Transactions per Second">
          <boolProp name="ResultCollector.error_logging">false</boolProp>
          <objProp>
            <name>saveConfig</name>
            <value class="SampleSaveConfiguration">
              <time>true</time>
              <latency>true</latency>
              <timestamp>true</timestamp>
              <success>true</success>
              <label>true</label>
              <code>true</code>
              <message>true</message>
              <threadName>true</threadName>
              <dataType>true</dataType>
              <encoding>false</encoding>
              <assertions>true</assertions>
              <subresults>true</subresults>
              <responseData>false</responseData>
              <samplerData>false</samplerData>
              <xml>false</xml>
              <fieldNames>true</fieldNames>
              <responseHeaders>false</responseHeaders>
              <requestHeaders>false</requestHeaders>
              <responseDataOnError>false</responseDataOnError>
              <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
              <assertionsResultsToSave>0</assertionsResultsToSave>
              <bytes>true</bytes>
              <sentBytes>true</sentBytes>
              <url>true</url>
              <threadCounts>true</threadCounts>
              <idleTime>true</idleTime>
              <connectTime>true</connectTime>
            </value>
          </objProp>
          <stringProp name="filename"></stringProp>
          <longProp name="interval_grouping">1000</longProp>
          <boolProp name="graph_aggregated">false</boolProp>
          <stringProp name="include_sample_labels"></stringProp>
          <stringProp name="exclude_sample_labels"></stringProp>
          <stringProp name="start_offset"></stringProp>
          <stringProp name="end_offset"></stringProp>
          <boolProp name="include_checkbox_state">false</boolProp>
          <boolProp name="exclude_checkbox_state">false</boolProp>
        </kg.apc.jmeter.vizualizers.CorrectedResultCollector>
        <hashTree/>
        <ResultCollector guiclass="StatVisualizer" testclass="ResultCollector" testname="Aggregate Report">
          <boolProp name="ResultCollector.error_logging">false</boolProp>
          <objProp>
            <name>saveConfig</name>
            <value class="SampleSaveConfiguration">
              <time>true</time>
              <latency>true</latency>
              <timestamp>true</timestamp>
              <success>true</success>
              <label>true</label>
              <code>true</code>
              <message>true</message>
              <threadName>true</threadName>
              <dataType>true</dataType>
              <encoding>false</encoding>
              <assertions>true</assertions>
              <subresults>true</subresults>
              <responseData>false</responseData>
              <samplerData>false</samplerData>
              <xml>false</xml>
              <fieldNames>true</fieldNames>
              <responseHeaders>false</responseHeaders>
              <requestHeaders>false</requestHeaders>
              <responseDataOnError>false</responseDataOnError>
              <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
              <assertionsResultsToSave>0</assertionsResultsToSave>
              <bytes>true</bytes>
              <sentBytes>true</sentBytes>
              <url>true</url>
              <threadCounts>true</threadCounts>
              <idleTime>true</idleTime>
              <connectTime>true</connectTime>
            </value>
          </objProp>
          <stringProp name="filename"></stringProp>
        </ResultCollector>
        <hashTree/>
      </hashTree>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

Eu tenho um cenário como este,

Login request

Request-1

Request-2

Request-3

Agora, quero executar esse cenário com 10.000 usuários dessa forma: primeiro, todos os 10.000 usuários são alcançados e, Login requestem seguida, todos os 10.000 usuários são atingidos Requests-1, 2 & 3de uma vez (significa que todas as 10.000 solicitações são acionadas ao mesmo tempo de uma só vez).

Alguém pode compartilhar a configuração do Jmeter para este cenário? Obrigado :-)

Iniciar solicitação HTTP 1: o grupo de threads 1 começa a enviar a solicitação 1 a uma taxa de 0,3 TPS.

Usando o sinal do pré-processador de comunicação entre threads Próxima etapa: Depois que uma solicitação 1 é finalizada com sucesso, um sinal é enviado ao grupo de threads 2.

Simular solicitação HTTP 2: Thread Group 2, após receber o sinal, aguarda 10 segundos e envia a solicitação 2

Atualmente a saída do plano de teste não envia Solicitação HTTP 2 para cada Solicitação HTTP 1

Estou executando o script JMeter na instância AWS EC2 para 4.000 usuários virtuais com 60 segundos como RampUp. Adicionei algumas solicitações dentro do Runtime Controller e dei 20 minutos como tempo limite para o Runtime Controller. Estou executando na máquina EC2 que tem 248 GB. Percebi que a execução não será concluída mesmo após o tempo limite. Percebi que poucos usuários virtuais se desconectaram ou concluíram a execução. Mas para poucos a execução não está completa. Além disso, não vejo as atualizações no console. Estou usando o comando abaixo para executar, JVM_ARGS="-Xms1g -Xmx200g" ./jmeter -n -t Load-Test-01.jmx -l TestResults4000UsersMachine1.csv

Estou cometendo algum erro aqui?

Em anexo está a captura de tela do console,

Listado abaixo está um .jmxarquivo que contém um plano de teste com dois Ultimate Thread Groups, ambos com um ouvinte de transações por segundo e um amostrador e ambos os amostradores com um temporizador de modelagem de taxa de transferência.

O plano de teste está configurado para executar todos os grupos de threads consecutivamente, mas quando executo o plano de teste, apenas o primeiro UTG é executado. Quando desativo o primeiro, o segundo é executado. Quando defino o plano de teste para executar os UTGs em paralelo, ambos funcionam bem.

Os UTGs não suportam corridas consecutivas? Estou fazendo algo errado?

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.6.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan">
      <stringProp name="TestPlan.comments">This example test plan demonstrates 
how Throughput Shaping Timer is used
to limit Requests per Second 
to desired shape.</stringProp>
      <boolProp name="TestPlan.serialize_threadgroups">true</boolProp>
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
    </TestPlan>
    <hashTree>
      <kg.apc.jmeter.threads.UltimateThreadGroup guiclass="kg.apc.jmeter.threads.UltimateThreadGroupGui" testclass="kg.apc.jmeter.threads.UltimateThreadGroup" testname="jp@gc - Ultimate Thread Group">
        <collectionProp name="ultimatethreadgroupdata">
          <collectionProp name="-167714363">
            <stringProp name="1691">50</stringProp>
            <stringProp name="0">0</stringProp>
            <stringProp name="48">0</stringProp>
            <stringProp name="1572">15</stringProp>
            <stringProp name="53">5</stringProp>
          </collectionProp>
        </collectionProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <intProp name="LoopController.loops">-1</intProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
      </kg.apc.jmeter.threads.UltimateThreadGroup>
      <hashTree>
        <kg.apc.jmeter.samplers.DummySampler guiclass="kg.apc.jmeter.samplers.DummySamplerGui" testclass="kg.apc.jmeter.samplers.DummySampler" testname="jp@gc - Dummy Sampler">
          <boolProp name="SUCCESFULL">true</boolProp>
          <stringProp name="RESPONSE_CODE">200</stringProp>
          <stringProp name="RESPONSE_MESSAGE">OK</stringProp>
          <stringProp name="RESPONSE_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
          <stringProp name="RESPONSE_TIME">${__Random(1,10)}</stringProp>
          <stringProp name="TestPlan.comments">Pretty fast response time gives us huge possible RPS rate</stringProp>
          <boolProp name="WAITING">false</boolProp>
          <stringProp name="REQUEST_DATA"></stringProp>
          <stringProp name="LATENCY"></stringProp>
          <stringProp name="CONNECT"></stringProp>
          <stringProp name="URL"></stringProp>
          <stringProp name="RESULT_CLASS">org.apache.jmeter.samplers.SampleResult</stringProp>
        </kg.apc.jmeter.samplers.DummySampler>
        <hashTree>
          <kg.apc.jmeter.timers.VariableThroughputTimer guiclass="kg.apc.jmeter.timers.VariableThroughputTimerGui" testclass="kg.apc.jmeter.timers.VariableThroughputTimer" testname="jp@gc - Throughput Shaping Timer">
            <collectionProp name="load_profile">
              <collectionProp name="1914237040">
                <stringProp name="49">1</stringProp>
                <stringProp name="1000">1000</stringProp>
                <stringProp name="1567">10</stringProp>
              </collectionProp>
              <collectionProp name="394057850">
                <stringProp name="1507423">1000</stringProp>
                <stringProp name="49">1</stringProp>
                <stringProp name="53">5</stringProp>
              </collectionProp>
            </collectionProp>
            <stringProp name="TestPlan.comments">Table below sets request rate shcedule ant preview graph instantly shows effect of changes.</stringProp>
          </kg.apc.jmeter.timers.VariableThroughputTimer>
          <hashTree/>
        </hashTree>
        <kg.apc.jmeter.vizualizers.CorrectedResultCollector guiclass="kg.apc.jmeter.vizualizers.TransactionsPerSecondGui" testclass="kg.apc.jmeter.vizualizers.CorrectedResultCollector" testname="jp@gc - Transactions per Second">
          <boolProp name="ResultCollector.error_logging">false</boolProp>
          <objProp>
            <name>saveConfig</name>
            <value class="SampleSaveConfiguration">
              <time>true</time>
              <latency>true</latency>
              <timestamp>true</timestamp>
              <success>true</success>
              <label>true</label>
              <code>true</code>
              <message>true</message>
              <threadName>true</threadName>
              <dataType>true</dataType>
              <encoding>false</encoding>
              <assertions>true</assertions>
              <subresults>true</subresults>
              <responseData>false</responseData>
              <samplerData>false</samplerData>
              <xml>false</xml>
              <fieldNames>true</fieldNames>
              <responseHeaders>false</responseHeaders>
              <requestHeaders>false</requestHeaders>
              <responseDataOnError>false</responseDataOnError>
              <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
              <assertionsResultsToSave>0</assertionsResultsToSave>
              <bytes>true</bytes>
              <sentBytes>true</sentBytes>
              <url>true</url>
              <threadCounts>true</threadCounts>
              <idleTime>true</idleTime>
              <connectTime>true</connectTime>
            </value>
          </objProp>
          <stringProp name="filename"></stringProp>
          <longProp name="interval_grouping">1000</longProp>
          <boolProp name="graph_aggregated">false</boolProp>
          <stringProp name="include_sample_labels"></stringProp>
          <stringProp name="exclude_sample_labels"></stringProp>
          <stringProp name="start_offset"></stringProp>
          <stringProp name="end_offset"></stringProp>
          <boolProp name="include_checkbox_state">false</boolProp>
          <boolProp name="exclude_checkbox_state">false</boolProp>
        </kg.apc.jmeter.vizualizers.CorrectedResultCollector>
        <hashTree/>
      </hashTree>
      <kg.apc.jmeter.threads.UltimateThreadGroup guiclass="kg.apc.jmeter.threads.UltimateThreadGroupGui" testclass="kg.apc.jmeter.threads.UltimateThreadGroup" testname="jp@gc - Ultimate Thread Group">
        <collectionProp name="ultimatethreadgroupdata">
          <collectionProp name="-167631597">
            <stringProp name="1691">50</stringProp>
            <stringProp name="0">0</stringProp>
            <stringProp name="48">0</stringProp>
            <stringProp name="1572">15</stringProp>
            <stringProp name="10">10</stringProp>
          </collectionProp>
        </collectionProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <intProp name="LoopController.loops">-1</intProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
      </kg.apc.jmeter.threads.UltimateThreadGroup>
      <hashTree>
        <kg.apc.jmeter.samplers.DummySampler guiclass="kg.apc.jmeter.samplers.DummySamplerGui" testclass="kg.apc.jmeter.samplers.DummySampler" testname="jp@gc - Dummy Sampler">
          <boolProp name="SUCCESFULL">true</boolProp>
          <stringProp name="RESPONSE_CODE">200</stringProp>
          <stringProp name="RESPONSE_MESSAGE">OK</stringProp>
          <stringProp name="RESPONSE_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
          <stringProp name="RESPONSE_TIME">${__Random(1,10)}</stringProp>
          <stringProp name="TestPlan.comments">Pretty fast response time gives us huge possible RPS rate</stringProp>
          <boolProp name="WAITING">false</boolProp>
          <stringProp name="REQUEST_DATA"></stringProp>
          <stringProp name="LATENCY"></stringProp>
          <stringProp name="CONNECT"></stringProp>
          <stringProp name="URL"></stringProp>
          <stringProp name="RESULT_CLASS">org.apache.jmeter.samplers.SampleResult</stringProp>
        </kg.apc.jmeter.samplers.DummySampler>
        <hashTree>
          <kg.apc.jmeter.timers.VariableThroughputTimer guiclass="kg.apc.jmeter.timers.VariableThroughputTimerGui" testclass="kg.apc.jmeter.timers.VariableThroughputTimer" testname="jp@gc - Throughput Shaping Timer">
            <collectionProp name="load_profile">
              <collectionProp name="-136768949">
                <stringProp name="49">1</stringProp>
                <stringProp name="1537214">2000</stringProp>
                <stringProp name="1567">10</stringProp>
              </collectionProp>
              <collectionProp name="81940520">
                <stringProp name="1537214">2000</stringProp>
                <stringProp name="49">1</stringProp>
                <stringProp name="53">5</stringProp>
              </collectionProp>
            </collectionProp>
            <stringProp name="TestPlan.comments">Table below sets request rate shcedule ant preview graph instantly shows effect of changes.</stringProp>
          </kg.apc.jmeter.timers.VariableThroughputTimer>
          <hashTree/>
        </hashTree>
        <kg.apc.jmeter.vizualizers.CorrectedResultCollector guiclass="kg.apc.jmeter.vizualizers.TransactionsPerSecondGui" testclass="kg.apc.jmeter.vizualizers.CorrectedResultCollector" testname="jp@gc - Transactions per Second">
          <boolProp name="ResultCollector.error_logging">false</boolProp>
          <objProp>
            <name>saveConfig</name>
            <value class="SampleSaveConfiguration">
              <time>true</time>
              <latency>true</latency>
              <timestamp>true</timestamp>
              <success>true</success>
              <label>true</label>
              <code>true</code>
              <message>true</message>
              <threadName>true</threadName>
              <dataType>true</dataType>
              <encoding>false</encoding>
              <assertions>true</assertions>
              <subresults>true</subresults>
              <responseData>false</responseData>
              <samplerData>false</samplerData>
              <xml>false</xml>
              <fieldNames>false</fieldNames>
              <responseHeaders>false</responseHeaders>
              <requestHeaders>false</requestHeaders>
              <responseDataOnError>false</responseDataOnError>
              <saveAssertionResultsFailureMessage>false</saveAssertionResultsFailureMessage>
              <assertionsResultsToSave>0</assertionsResultsToSave>
              <bytes>true</bytes>
              <threadCounts>true</threadCounts>
            </value>
          </objProp>
          <stringProp name="filename"></stringProp>
          <longProp name="interval_grouping">1000</longProp>
          <boolProp name="graph_aggregated">false</boolProp>
          <stringProp name="include_sample_labels"></stringProp>
          <stringProp name="exclude_sample_labels"></stringProp>
          <stringProp name="start_offset"></stringProp>
          <stringProp name="end_offset"></stringProp>
          <boolProp name="include_checkbox_state">false</boolProp>
          <boolProp name="exclude_checkbox_state">false</boolProp>
        </kg.apc.jmeter.vizualizers.CorrectedResultCollector>
        <hashTree/>
      </hashTree>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

Vejo esta opção Executar desmontagem de grupos de threads após o encerramento dos threads principais. Mas se eu adicionar um grupo de threads desmontáveis ​​em meu plano de teste e configurar uma solicitação HTTP simples, vejo que isso sempre é executado, independentemente de a caixa de seleção estar marcada ou não no plano de teste. Então, qual é o propósito desta caixa de seleção no Plano de Teste. Alguém também pode esclarecer se o grupo de threads desmontados sempre será executado se estiver presente no plano de teste ou não. Estou recebendo respostas contraditórias de vários blogs.

Tenho poucos elementos ThreadGroup no script Jmeter. E eu quero executá-lo um após o outro em ciclo infinito. Como eu posso fazer isso?

Add this for validation of stackoverflow
"information_for_calculation_period": {
             "is_alimony_received": false,
            "is_recipient_of_foreign_income": true,
            "is_under23_and_unscholarshipped_student": false,
            "is_recipient_of_educational_benefits": false,
            "is_served_military_service_by_conscription": false,
            "is_recipient_of_judges_retirement_benefit": false,
            "is_compensation_received_for_duties": false,
            "is_under_long_term_medical_treatment": true,
            "is_recipient_of_one_time_service_termination_benefit": false,
            "is_recipient_of_law_enforcement_pension": true, 
            "is_pregnant_family_member_during_income_period_or_application": false          

import java.util.Random;
import java.util.regex.Pattern;
 import java.util.regex.Matcher;


String responseData = prev.getResponseDataAsString();
// log.info("the response data is : " + responseData);

Pattern pattern = Pattern.compile("<option value=\"(.+?)\">(.+?)</option>");
// log.info("pattern is : " + pattern);
Matcher matcher = pattern.matcher(responseData);
// log.info("matcher is :" + matcher);

while(matcher.find())
{
    log.info("the cities are : " + matcher.group(1));
    String extractedCity = matcher.group(1);
    log.info("the extracted city is : " + extractedCity);
    vars.put("Depart_city" , extractedCity);
}[log level output of the code](https://isstatic.askoverflow.dev/ANKbl.png)

consigo extrair os dados, mas não consigo escolher um valor aleatório do resultado e armazená-lo em uma variável jmeter