Question

我安装了Java 1.8.0_151和JMeter 5.1。尝试发送HTTP2请求时出现以下错误：

java.util.concurrent.ExecutionException: java.lang.IllegalStateException: No Client ALPNProcessors!
at org.eclipse.jetty.util.FuturePromise.get(FuturePromise.java:138)
at com.blazemeter.jmeter.http2.sampler.HTTP2Connection.connect(HTTP2Connection.java:69)
at com.blazemeter.jmeter.http2.sampler.HTTP2Request.setConnection(HTTP2Request.java:280)
at com.blazemeter.jmeter.http2.sampler.HTTP2Request.sample(HTTP2Request.java:140)
at com.blazemeter.jmeter.http2.sampler.HTTP2Request.sample(HTTP2Request.java:117)
at org.apache.jmeter.threads.JMeterThread.doSampling(JMeterThread.java:622)
at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:546)
at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:486)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:253)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: No Client ALPNProcessors!
    at org.eclipse.jetty.alpn.client.ALPNClientConnectionFactory.<init>(ALPNClientConnectionFactory.java:57)
    at org.eclipse.jetty.http2.client.HTTP2Client.lambda$doStart$1(HTTP2Client.java:155)
    at org.eclipse.jetty.http2.client.HTTP2Client$ClientSelectorManager.newConnection(HTTP2Client.java:438)
    at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:222)
    at org.eclipse.jetty.io.ManagedSelector.access$1500(ManagedSelector.java:60)
    at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:825)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:754)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:672)
    ... 1 more
    Suppressed: java.lang.IllegalStateException: org.eclipse.jetty.alpn.ALPN must be on JVM boot classpath
        at org.eclipse.jetty.alpn.java.client.OpenJDK8ClientALPNProcessor.init(OpenJDK8ClientALPNProcessor.java:43)
        at org.eclipse.jetty.alpn.client.ALPNClientConnectionFactory.<init>(ALPNClientConnectionFactory.java:77)
        ... 8 more

我已经将alpn-boot-8.1.11.v20170118.jar（根据我的Java版本）下载到jmeter \ lib文件夹，并将以下记录添加到jmeter.bat：set JVM_ARGS="-Xbootclasspath/p:D:\apache-jmeter-5.1\apache-jmeter-5.1\lib\alpn-boot-8.1.11.v20170118.jar;"。 HTTP2请求仍然无法正确发送。我错过了什么？预先谢谢?

Answer 1

您的步骤看起来不错，我只能想到2个HTTP2采样器不起作用的原因：

alpn-boot库的错误路径，您可以使用dir command进行检查，例如：
```
dir d:\apache-jmeter-5.1\apache-jmeter-5.1\lib\alpn-boot-8.1.11.v20170118.jar
```
您应该看到类似以下内容的
：
检查JMeter使用的Java版本，因为它可能不是1.8.0_151，而是PATH中最先出现的Java版本。为了确保JMeter使用正确的Java运行时，可以在jmeter.bat文件中明确声明它：
```
set PATH=d:\java\bin;%PATH%
```

最后，您可以使用JSR223 Sampler打印Java版本和有效的Java参数，相关代码如下所示：

log.info('Java version: ' + System.getProperty('java.version'))
java.lang.management.ManagementFactory.getRuntimeMXBean().getInputArguments().each {
    log.info("Effective JVM argument: " + "$it")
}

如果应用了以上清单项，则您应该能够正常执行HTTP2请求：

还要注意，根据9 Easy Solutions for a JMeter Load Test “Out of Memory” Failure，您应该始终使用最新版本的JMeter，因此请考虑升级到JMeter 5.2（或JMeter Downloads页上提供的最新稳定版本）。尽快地。

Answer 2

还要检查此线程： HTTP2 request sample crashes with Jmeter4, Java 10 No Client ALPNProcessors。它在这里说： 尤其是，jetty-alpn-openjdk8-client依赖关系无效，不适用于Java 9+。对于Java 9+，应改为使用jetty-alpn-java-client。

JMeter HTTP2请求错误（Java 8，JMeter 5.1）

2 个答案: