johrstrom
commented
3 years ago Thanks for the ticket! It's strange that this would happen to you. Looking back through the code, if this were an issue it would mean nobody could run distributed tests, which doesn't seem to be the case.
Can you comment out the skip tg and see if it runs in a distributed mode then? I think there could be an issue with the fact that there are multiple listeners and the way JMeter initialized everything on the client side before starting the test on the remove server.
GaspardZeBear
Hi,
Bug ? : Jmeter 5.2.1, plugin 0.6.0
Issue : When remotly launched, the prometheus plugin 0.6.0 generates an exception when trying to increment in jsr223 script counters defined as metrics . It works when launched locally. The counters defined into a prometheus listener work in both cases..
Illustration with the plugin demo scenario :
Hereunder details
Thanks for help ! Your plugin is great
Local launch
curl -vvv http://local:9270 2>&1 | grep jsr223 | grep total < # HELP jsr223_can_fail_total success ratio of the can_fail_sampler < # TYPE jsr223_can_fail_total counter < jsr223_can_fail_total 16.0 < # HELP jsr223_assertions_total default help string < # TYPE jsr223_assertions_total counter < jsr223_assertions_total{label="less than 2kB",} 16.0 < # HELP jsr223_count_total the total number of samplers < # TYPE jsr223_count_total counter < jsr223_count_total{label="can_fail_sampler",} 16.0 < # HELP jsr223_animals_total default help string < # TYPE jsr223_animalstotal counter **< jsr223_animals_total{color="G",size="S",mammal="N",} 1.0 < jsr223_animals_total{color="R",size="L",mammal="N",} 1.0 < jsr223_animals_total{color="R",size="S",mammal="Y",} 2.0 < jsr223_animals_total{color="B",size="M",mammal="Y",} 1.0 < jsr223_animalstotal{color="R",size="M",mammal="Y",} 1.0** < # HELP jsr223_success_total the total number of successful samplers < # TYPE jsr223_success_total counter < jsr223_success_total{label="can_fail_sampler",} 10.0
Remote launch : jsr223_animals_total not present
curl -vvv http://remote: 9270 2>&1 | grep jsr223 | grep total < # HELP jsr223_can_fail_total success ratio of the can_fail_sampler < # TYPE jsr223_can_fail_total counter < jsr223_can_fail_total 32.0 < # HELP jsr223_count_total the total number of samplers < # TYPE jsr223_count_total counter < jsr223_count_total{label="can_fail_sampler",} 32.0 < # HELP jsr223_success_total the total number of successful samplers
Traces
2020-10-21 08:50:20,174 WARN c.g.j.l.PrometheusListener: Prometheus server has not yet been initialized, doing it now 2020-10-21 08:50:20,175 ERROR c.g.j.c.CollectorElement: Didn't create new collector because of error, java.lang.NullPointerException: null at com.github.johrstrom.collector.CollectorElement.makeNewCollectors(CollectorElement.java:70) [prometheus-plugin-0.6.0.jar:?] at com.github.johrstrom.config.PrometheusMetricsConfig.testStarted(PrometheusMetricsConfig.java:44) [prometheus-plugin-0.6.0.jar:?] at com.github.johrstrom.config.PrometheusMetricsConfig.testStarted(PrometheusMetricsConfig.java:59) [prometheus-plugin-0.6.0.jar:?] at org.apache.jmeter.engine.StandardJMeterEngine.notifyTestListenersOfStart(StandardJMeterEngine.java:208) [ApacheJMeter_core.jar:5.2.1] at org.apache.jmeter.engine.StandardJMeterEngine.run(StandardJMeterEngine.java:381) [ApacheJMeter_core.jar:5.2.1] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_262] ...... 2020-10-21 08:50:23,367 ERROR o.a.j.p.j.s.JSR223Sampler: Problem in JSR223 script JSR223 Sampler, message: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method labels() on null object javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method labels() on null object at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:324) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.jsr223.GroovyCompiledScript.eval(GroovyCompiledScript.java:72) ~[groovy-all-2.4.16.jar:2.4.16] at javax.script.CompiledScript.eval(CompiledScript.java:92) ~[?:1.8.0_262] at org.apache.jmeter.util.JSR223TestElement.processFileOrScript(JSR223TestElement.java:223) ~[ApacheJMeter_core.jar:5.2.1] at org.apache.jmeter.protocol.java.sampler.JSR223Sampler.sample(JSR223Sampler.java:71) [ApacheJMeter_java.jar:5.2.1] at org.apache.jmeter.threads.JMeterThread.doSampling(JMeterThread.java:627) [ApacheJMeter_core.jar:5.2.1] at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:551) [ApacheJMeter_core.jar:5.2.1] at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:490) [ApacheJMeter_core.jar:5.2.1] at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:257) [ApacheJMeter_core.jar:5.2.1] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_262] Caused by: java.lang.NullPointerException: Cannot invoke method labels() on null object at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:47) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:34) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) ~[groovy-all-2.4.16.jar:2.4.16] at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:144) ~[groovy-all-2.4.16.jar:2.4.16] at Script41.run(Script41.groovy:10) ~[?:?] at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:321) ~[groovy-all-2.4.16.jar:2.4.16]