我想测试一个服务,看看它在存在并发请求时的行为如何。为此,我使用并发线程组,每秒添加一个新请求,直到 100 秒内达到 100 个请求。
该方案执行后似乎可以运行,但 CLI 模式下的结果与 GUI 模式下的结果不同。特别是,在 CLI 模式下,永远不会生成具有单个请求的情况(从具有 2 个并发请求的情况开始执行)。
这是我的测试计划:
<?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="Single Service Test">
<elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
<collectionProp name="Arguments.arguments">
<elementProp name="contentType" elementType="Argument">
<stringProp name="Argument.name">contentType</stringProp>
<stringProp name="Argument.value">application/json</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="method" elementType="Argument">
<stringProp name="Argument.name">method</stringProp>
<stringProp name="Argument.value">GET</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="url" elementType="Argument">
<stringProp name="Argument.name">url</stringProp>
<stringProp name="Argument.value">localhost</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="port" elementType="Argument">
<stringProp name="Argument.name">port</stringProp>
<stringProp name="Argument.value">8080</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="endpoint" elementType="Argument">
<stringProp name="Argument.name">endpoint</stringProp>
<stringProp name="Argument.value">service_a</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="n" elementType="Argument">
<stringProp name="Argument.name">n</stringProp>
<stringProp name="Argument.value">10000000</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
</collectionProp>
</elementProp>
</TestPlan>
<hashTree>
<com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroup guiclass="com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroupGui" testclass="com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroup" testname=" Concurrency Thread Group">
<elementProp name="ThreadGroup.main_controller" elementType="com.blazemeter.jmeter.control.VirtualUserController"/>
<stringProp name="ThreadGroup.on_sample_error">stoptestnow</stringProp>
<stringProp name="TargetLevel">100</stringProp>
<stringProp name="RampUp">100</stringProp>
<stringProp name="Steps">100</stringProp>
<stringProp name="Hold"></stringProp>
<stringProp name="LogFilename"></stringProp>
<stringProp name="Iterations"></stringProp>
<stringProp name="Unit">S</stringProp>
</com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroup>
<hashTree>
<HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="${__groovy(org.apache.jmeter.threads.JMeterContextService.getNumberOfThreads())}_Requests" enabled="true">
<stringProp name="HTTPSampler.domain">${url}</stringProp>
<stringProp name="HTTPSampler.port">${port}</stringProp>
<stringProp name="HTTPSampler.protocol">http</stringProp>
<stringProp name="HTTPSampler.path">${endpoint}</stringProp>
<stringProp name="HTTPSampler.method">${method}</stringProp>
<boolProp name="HTTPSampler.use_keepalive">true</boolProp>
<boolProp name="HTTPSampler.postBodyRaw">false</boolProp>
<elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
<collectionProp name="Arguments.arguments">
<elementProp name="n" elementType="HTTPArgument">
<boolProp name="HTTPArgument.always_encode">false</boolProp>
<stringProp name="Argument.value">${n}</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
<boolProp name="HTTPArgument.use_equals">true</boolProp>
<stringProp name="Argument.name">n</stringProp>
</elementProp>
</collectionProp>
</elementProp>
<stringProp name="HTTPSampler.implementation">HttpClient4</stringProp>
</HTTPSamplerProxy>
<hashTree>
<HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="HTTP Header Manager" enabled="true">
<collectionProp name="HeaderManager.headers">
<elementProp name="" elementType="Header">
<stringProp name="Header.name">Content-Type</stringProp>
<stringProp name="Header.value">${contentType}</stringProp>
</elementProp>
</collectionProp>
</HeaderManager>
<hashTree/>
</hashTree>
</hashTree>
</hashTree>
</hashTree>
</jmeterTestPlan>
即使在 CLI 模式下,如何通过单个请求从案例开始执行?
我无法理解你的“永远不会生成单个请求的情况”声明是什么意思。
并发线程组中不存在“请求”这样的东西,有:
因此,如果您的“单个请求”是这样的:
不会执行任何操作,因为预期测试持续时间为 0 秒
对于您提供的测试计划,我看不出 GUI 和非 GUI 执行之间有任何区别
对于未来:如果 JMeter 测试执行出现任何问题,首先检查 jmeter.log 文件是否有任何可疑条目。如果没有足够的信息,您可以为您正在使用的组件/插件启用 JMeter 调试日志记录。