gatling-maven plugin: reportsOnly appends /true to all paths

[Håkan]

Hi folks,

I am running Gatling 3.0.0-SNAPSHOT in a Jenkins instance and it generally works well. However, after a stress test failed to complete I am unable to generate the report using the gatling-maven plugin, either because I am doing it wrong or because there is some issue with the plugin:

I have set up the Jenkins job with this Maven goal: gatling:execute -Dgatling.reportsOnly -Dgatling.resultsFolder=/var/lib/jenkins/workspace/my-combo-stresstest/target/gatling/mycombosimulation-1521127678547

However, the path that is fed to Gatling is the one specified in -Dgatling.resultsFolder with "/true" appended. It appears to not make any difference if I use a trailing space or not, nor does it make any difference if I use an absolute path or not (i.e. -Dgatling.resultsFolder=mycombosimulation-1521127678547), neither does using single or double quotes around the path help.

09:37:36 [INFO] 09:37:36.681 a.e.s.Slf4jLogger - Slf4jLogger started

09:37:36 Parsing log file(s)...

09:37:36 java.lang.reflect.InvocationTargetException

09:37:36 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

09:37:36 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

09:37:36 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

09:37:36 at java.lang.reflect.Method.invoke(Method.java:498)

09:37:36 at io.gatling.mojo.MainWithArgsInFile.runMain(MainWithArgsInFile.java:50)

09:37:36 at io.gatling.mojo.MainWithArgsInFile.main(MainWithArgsInFile.java:33)

09:37:36 Caused by: java.lang.IllegalArgumentException: requirement failed: simulation directory '/var/lib/jenkins/workspace/my-combo-stresstest/target/gatling/mymentcombosimulation-1521127678547/true' doesn't exist

09:37:36 at scala.Predef$.require(Predef.scala:277)

09:37:36 at io.gatling.core.config.GatlingFiles$.simulationLogDirectory(GatlingFiles.scala:49)

09:37:36 at io.gatling.charts.stats.LogFileReader.<init>(LogFileReader.scala:50)

09:37:36 at io.gatling.app.RunResultProcessor.initLogFileReader(RunResultProcessor.scala:67)

09:37:36 at io.gatling.app.RunResultProcessor.processRunResult(RunResultProcessor.scala:49)

09:37:36 at io.gatling.app.Gatling$.start(Gatling.scala:77)

09:37:36 at io.gatling.app.Gatling$.fromArgs(Gatling.scala:44)

09:37:36 at io.gatling.app.Gatling$.main(Gatling.scala:36)

09:37:36 at io.gatling.app.Gatling.main(Gatling.scala)

09:37:36 ... 6 more

Does anyone have any idea what I could do to get around this? Maven versions 3.3.9, 3.5.2 and 3.5.3 have all been tested with exactly the same result.

Best regards,

Håkan

[Håkan]

gatling-maven plugin is 3.0.0-SNAPSHOT and I have run maven with the -U parameter to make sure everything is up to date.

[Stéphane LANDELLE]

Hi,

Do you compile Gatling 3 on your side, or do you fetch SNAPSHOTs from Sonatype's repo?

If the former, you're using old ones as they are no longer properly deployed, see https://github.com/gatling/gatling/issues/3406

Then, could you provide a reproducer, please? Can you reproduce locally without Jenkins?

Stéphane Landelle

GatlingCorp CEO

slan...@gatling.io

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[Håkan]

Hi Stéphane,

The issue is the same when running maven from the command line, without Jenkins.

Thanks for the heads up about the Sonatype repo. I wasn't aware of the SBT issue, but I will build locally and report back.

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[Håkan]

Locally compiled it doesn't play well with the base examples from the maven-plugin demo project.

INFO] 14:28:14.951 i.g.c.ZincCompiler$ - Compiling 11 Scala sources to /var/lib/jenkins/workspace/my-combo-stresstest/target/test-classes ...

[ERROR] 14:28:17.254 i.g.c.ZincCompiler$ - /var/lib/jenkins/workspace/my-combo-stresstest/src/test/scala/Engine.scala:7:10: value dataDirectory is not a member of io.gatling.core.config.GatlingPropertiesBuilder

possible cause: maybe a semicolon is missing before `value dataDirectory'?

        .dataDirectory(IDEPathHelper.dataDirectory.toString)

         ^

[ERROR] 14:28:17.445 i.g.c.ZincCompiler$ - /var/lib/jenkins/workspace/my-combo-stresstest/src/test/scala/Recorder.scala:7:8: value simulationOutputFolder is not a member of io.gatling.recorder.config.RecorderPropertiesBuilder

        props.simulationOutputFolder(IDEPathHelper.recorderOutputDirectory.toString)

              ^

[ERROR] 14:28:17.450 i.g.c.ZincCompiler$ - /var/lib/jenkins/workspace/my-combo-stresstest/src/test/scala/Recorder.scala:9:8: value bodiesFolder is not a member of io.gatling.recorder.config.RecorderPropertiesBuilder

        props.bodiesFolder(IDEPathHelper.bodiesDirectory.toString)

              ^

[ERROR] 14:28:20.027 i.g.c.ZincCompiler$ - three errors found

[ERROR] 14:28:20.029 i.g.c.ZincCompiler$ - Compilation crashed

[Stéphane LANDELLE]

Have a look at the fl branch

Stéphane Landelle

GatlingCorp CEO

slan...@gatling.io

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[Håkan]

Thanks for your prompt reply, Stéphane.

It now builds again, but the error itself persists: The (verified existing path) gets /true appended to it somehow.

Executed from the command line with maven 3.5.3, like this:

mvn gatling:execute -Dgatling.reportsOnly -Dgatling.resultsFolder=/var/lib/jenkins/workspace/my-combo-stresstest/target/gatling/mycombosimulation-1521127678547

And the error itself:

Parsing log file(s)...

java.lang.reflect.InvocationTargetException

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at io.gatling.mojo.MainWithArgsInFile.runMain(MainWithArgsInFile.java:50)

        at io.gatling.mojo.MainWithArgsInFile.main(MainWithArgsInFile.java:33)

Caused by: java.lang.IllegalArgumentException: requirement failed: simulation directory '/var/lib/jenkins/workspace/my-combo-stresstest/target/gatling/mycombosimulation-1521127678547/true' doesn't exist

        at scala.Predef$.require(Predef.scala:277)

        at io.gatling.core.config.GatlingFiles$.simulationLogDirectory(GatlingFiles.scala:49)

        at io.gatling.charts.stats.LogFileReader.<init>(LogFileReader.scala:51)

        at io.gatling.app.RunResultProcessor.initLogFileReader(RunResultProcessor.scala:68)

        at io.gatling.app.RunResultProcessor.processRunResult(RunResultProcessor.scala:50)

        at io.gatling.app.Gatling$.start(Gatling.scala:82)

        at io.gatling.app.Gatling$.fromArgs(Gatling.scala:47)

        at io.gatling.app.Gatling$.main(Gatling.scala:39)

        at io.gatling.app.Gatling.main(Gatling.scala)

        ... 6 more

Can you reproduce it?

[Stéphane LANDELLE]

OK, the problem is a misusage, the proper command is:

gatling:execute -Dgatling.reportsOnly=mycombosimulation-1521127678547 -Dgatling.resultsFolder=/var/lib/jenkins/workspace/my-combo-stresstest/target/gatling/

Stéphane Landelle

GatlingCorp CEO

slan...@gatling.io

To unsubscribe from this group and stop receiving emails from it, send an email to gatling+unsubscribe@googlegroups.com.

[Håkan]

You're absolutely right, it was a PEBKAC error just as I suspected.

Thank you very much. Perhaps I should help other confused users by helping document the usage of the maven plugin...

[Stéphane LANDELLE]

Yes, it would be great! https://github.com/gatling/gatling/blob/master/src/sphinx/extensions/maven_plugin.rst

Stéphane Landelle

GatlingCorp CEO

slan...@gatling.io

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