Creating a versionable, self-contained (fat-/uber-) JAR for Gatling tests
Why
The reasoning behind this post is very similar to Creating a versionable, self-contained (fat-/uber-) JAR for Cucumber tests, but doesn't include the comment about the separation of unit tests and cucumber steps.
This means that the two reasons we'd want a fat JAR is:
- We want to have a versionable artefact for our Gatling tests
- We only want a single JAR downloaded, which contains our dependencies as well as simulations and scenarios, rather than all of the dependencies separately
As mentioned in the Cucumber post, we don't necessarily want both of these, but they're both achieved with this approach.
Before
A traditional setup for a Gatling project in Maven is as follows:
pom.xml
src/test/scala/me/jvt/hacking/BasicSimulation.scala
src/test/scala/me/jvt/hacking/OtherSimulation.scala
Our POM uses the gatling-maven-plugin to run our tests, hooking it into the verify phase:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>me.jvt.hacking</groupId>
<artifactId>fat-gatling-jar</artifactId>
<version>0.3</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<gatling.version>3.0.0</gatling.version>
<gatling-plugin.version>3.0.0</gatling-plugin.version>
<scala-maven-plugin.version>3.4.4</scala-maven-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>io.gatling.highcharts</groupId>
<artifactId>gatling-charts-highcharts</artifactId>
<version>${gatling.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>${scala-maven-plugin.version}</version>
</plugin>
<plugin>
<groupId>io.gatling</groupId>
<artifactId>gatling-maven-plugin</artifactId>
<version>${gatling-plugin.version}</version>
<executions>
<execution>
<id>BasicSimulation</id>
<goals>
<goal>test</goal>
</goals>
<phase>verify</phase>
<configuration>
<simulationClass>me.jvt.hacking.BasicSimulation</simulationClass>
</configuration>
</execution>
<execution>
<id>OtherSimulation</id>
<goals>
<goal>test</goal>
</goals>
<phase>verify</phase>
<configuration>
<simulationClass>me.jvt.hacking.OtherSimulation</simulationClass>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
When we perform a mvn clean verify:
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------< me.jvt.hacking:fat-gatling-jar >-------------------
[INFO] Building fat-gatling-jar 0.3
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ fat-gatling-jar ---
[INFO] Deleting /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ fat-gatling-jar ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ fat-gatling-jar ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ fat-gatling-jar ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ fat-gatling-jar ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ fat-gatling-jar ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ fat-gatling-jar ---
[INFO] Building jar: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/fat-gatling-jar-0.3.jar
[INFO]
[INFO] --- gatling-maven-plugin:3.0.0:test (BasicSimulation) @ fat-gatling-jar ---
Simulation me.jvt.hacking.BasicSimulation started...
================================================================================
2018-11-18 14:03:45 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_1 (OK=1 KO=0 )
> request_1 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[--------------------------------------------------------------------------] 0%
waiting: 0 / active: 1 / done: 0
================================================================================
================================================================================
2018-11-18 14:03:47 6s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_1 (OK=1 KO=0 )
> request_1 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[##########################################################################]100%
waiting: 0 / active: 0 / done: 1
================================================================================
Simulation me.jvt.hacking.BasicSimulation completed in 5 seconds
Parsing log file(s)...
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 2 (OK=2 KO=0 )
> min response time 32 (OK=32 KO=- )
> max response time 117 (OK=117 KO=- )
> mean response time 75 (OK=75 KO=- )
> std deviation 43 (OK=43 KO=- )
> response time 50th percentile 75 (OK=75 KO=- )
> response time 75th percentile 96 (OK=96 KO=- )
> response time 95th percentile 113 (OK=113 KO=- )
> response time 99th percentile 116 (OK=116 KO=- )
> mean requests/sec 0.333 (OK=0.333 KO=- )
---- Response Time Distribution ------------------------------------------------
> t < 25 ms 0 ( 0%)
> 25 ms < t < 50 ms 1 ( 50%)
> t > 50 ms 1 ( 50%)
> failed 0 ( 0%)
================================================================================
Reports generated in 0s.
Please open the following file: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/gatling/basicsimulation-20181118140340625/index.html
[INFO]
[INFO] --- gatling-maven-plugin:3.0.0:test (OtherSimulation) @ fat-gatling-jar ---
Simulation me.jvt.hacking.OtherSimulation started...
================================================================================
2018-11-18 14:03:57 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_2 (OK=1 KO=0 )
> request_2 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[--------------------------------------------------------------------------] 0%
waiting: 0 / active: 1 / done: 0
================================================================================
================================================================================
2018-11-18 14:03:58 6s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_2 (OK=1 KO=0 )
> request_2 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[##########################################################################]100%
waiting: 0 / active: 0 / done: 1
================================================================================
Simulation me.jvt.hacking.OtherSimulation completed in 5 seconds
Parsing log file(s)...
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 2 (OK=2 KO=0 )
> min response time 39 (OK=39 KO=- )
> max response time 105 (OK=105 KO=- )
> mean response time 72 (OK=72 KO=- )
> std deviation 33 (OK=33 KO=- )
> response time 50th percentile 72 (OK=72 KO=- )
> response time 75th percentile 89 (OK=89 KO=- )
> response time 95th percentile 102 (OK=102 KO=- )
> response time 99th percentile 104 (OK=104 KO=- )
> mean requests/sec 0.333 (OK=0.333 KO=- )
---- Response Time Distribution ------------------------------------------------
> t < 25 ms 0 ( 0%)
> 25 ms < t < 50 ms 1 ( 50%)
> t > 50 ms 1 ( 50%)
> failed 0 ( 0%)
================================================================================
Reports generated in 0s.
Please open the following file: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/gatling/othersimulation-20181118140352474/index.html
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 33.747 s
[INFO] Finished at: 2018-11-18T14:03:59Z
[INFO] ------------------------------------------------------------------------
Also notice the warning about the JAR not having anything to be included in it. This is expected, as at this stage we don't have anything in src/main to be included:
% ls -al target/*.jar
-rw-r--r-- 1 jamie jamie 2019 Nov 18 14:03 target/fat-gatling-jar-0.3.jar
% unzip -l target/*.jar
Archive: target/fat-gatling-jar-0.3.jar
Length Date Time Name
--------- ---------- ----- ----
0 2018-11-18 14:03 META-INF/
131 2018-11-18 14:03 META-INF/MANIFEST.MF
0 2018-11-18 14:03 META-INF/maven/
0 2018-11-18 14:03 META-INF/maven/me.jvt.hacking/
0 2018-11-18 14:03 META-INF/maven/me.jvt.hacking/fat-gatling-jar/
2563 2018-11-18 14:03 META-INF/maven/me.jvt.hacking/fat-gatling-jar/pom.xml
112 2018-11-18 14:03 META-INF/maven/me.jvt.hacking/fat-gatling-jar/pom.properties
--------- -------
2903 8 files
After
To enable the creation of a self-contained Gatling artefact, we first need to move our Gatling files from src/test to src/main to fit within Maven's directory structures:
pom.xml
src/main/scala/me/jvt/hacking/BasicSimulation.scala
src/main/scala/me/jvt/hacking/OtherSimulation.scala
Then, we need to make sure that the scala-maven-plugin is hooked in to to the compile phase, so our Scala files are built and available to be pulled into the JAR:
<groupId>me.jvt.hacking</groupId>
<artifactId>fat-gatling-jar</artifactId>
- <version>0.3</version>
+ <version>0.4</version>
+ <packaging>jar</packaging>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
@@ -22,7 +23,6 @@
<groupId>io.gatling.highcharts</groupId>
<artifactId>gatling-charts-highcharts</artifactId>
<version>${gatling.version}</version>
- <scope>test</scope>
</dependency>
</dependencies>
@@ -32,7 +32,49 @@
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>${scala-maven-plugin.version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>compile</goal>
+ <goal>testCompile</goal>
+ </goals>
+ </execution>
+ </executions>
</plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-shade-plugin</artifactId>
+ <version>3.1.1</version>
+ <configuration>
+ <filters>
+ <!-- https://stackoverflow.com/a/6743609 -->
+ <filter>
+ <artifact>*:*</artifact>
+ <excludes>
+ <exclude>META-INF/*.DSA</exclude>
+ <exclude>META-INF/*.SF</exclude>
+ <exclude>META-INF/*.RSA</exclude>
+ </excludes>
+ </filter>
+ </filters>
+ </configuration>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ <configuration>
+ <transformers>
+ <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+ <mainClass>io.gatling.app.Gatling</mainClass>
+ </transformer>
+ </transformers>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+
<plugin>
<groupId>io.gatling</groupId>
<artifactId>gatling-maven-plugin</artifactId>
Note that we're marking the packaging of the project as a jar because we've now got an actual artefact that this project creates.
% ls -al target/*.jar
-rw-r--r-- 1 jamie jamie 44578503 Nov 18 14:14 target/fat-gatling-jar-0.4.jar
-rw-r--r-- 1 jamie jamie 7559 Nov 18 14:14 target/original-fat-gatling-jar-0.4.jar
% unzip -l target/fat-gatling-jar-0.4.jar
Archive: target/fat-gatling-jar-0.4.jar
Length Date Time Name
--------- ---------- ----- ----
167 2018-11-18 14:14 META-INF/MANIFEST.MF
0 2018-11-18 14:14 META-INF/
0 2018-11-18 14:14 me/
0 2018-11-18 14:14 me/jvt/
0 2018-11-18 14:14 me/jvt/hacking/
5272 2018-11-18 14:14 me/jvt/hacking/BasicSimulation.class
5272 2018-11-18 14:14 me/jvt/hacking/OtherSimulation.class
0 2018-11-18 14:14 META-INF/maven/
0 2018-11-18 14:14 META-INF/maven/me.jvt.hacking/
0 2018-11-18 14:14 META-INF/maven/me.jvt.hacking/fat-gatling-jar/
4148 2018-11-18 14:12 META-INF/maven/me.jvt.hacking/fat-gatling-jar/pom.xml
112 2018-11-18 14:14 META-INF/maven/me.jvt.hacking/fat-gatling-jar/pom.properties
...
0 2018-11-18 14:14 META-INF/maven/com.eatthepath/
0 2018-11-18 14:14 META-INF/maven/com.eatthepath/fast-uuid/
5857 2018-01-26 21:04 META-INF/maven/com.eatthepath/fast-uuid/pom.xml
87 2018-01-26 21:04 META-INF/maven/com.eatthepath/fast-uuid/pom.properties
--------- -------
102144180 24150 files
Now, when we perform a mvn clean verify:
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------< me.jvt.hacking:fat-gatling-jar >-------------------
[INFO] Building fat-gatling-jar 0.4
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ fat-gatling-jar ---
[INFO] Deleting /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ fat-gatling-jar ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ fat-gatling-jar ---
[INFO] No sources to compile
[INFO]
[INFO] --- scala-maven-plugin:3.4.4:compile (default) @ fat-gatling-jar ---
[INFO] /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/src/main/scala:-1: info: compiling
[INFO] Compiling 2 source files to /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/classes at 1542550447891
[INFO] prepare-compile in 0 s
[INFO] compile in 5 s
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ fat-gatling-jar ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ fat-gatling-jar ---
[INFO] No sources to compile
[INFO]
[INFO] --- scala-maven-plugin:3.4.4:testCompile (default) @ fat-gatling-jar ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ fat-gatling-jar ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ fat-gatling-jar ---
[INFO] Building jar: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/fat-gatling-jar-0.4.jar
[INFO]
[INFO] --- maven-shade-plugin:3.1.1:shade (default) @ fat-gatling-jar ---
[INFO] Including io.gatling.highcharts:gatling-charts-highcharts:jar:3.0.0 in the shaded jar.
[INFO] Including org.scala-lang:scala-library:jar:2.12.7 in the shaded jar.
[INFO] Including io.gatling:gatling-charts:jar:3.0.0 in the shaded jar.
[INFO] Including io.gatling:gatling-core:jar:3.0.0 in the shaded jar.
[INFO] Including com.typesafe.akka:akka-slf4j_2.12:jar:2.5.17 in the shaded jar.
[INFO] Including org.simpleflatmapper:lightning-csv:jar:6.0.1 in the shaded jar.
[INFO] Including org.simpleflatmapper:sfm-util:jar:6.0.1 in the shaded jar.
[INFO] Including com.github.ben-manes.caffeine:caffeine:jar:2.6.2 in the shaded jar.
[INFO] Including io.pebbletemplates:pebble:jar:3.0.5 in the shaded jar.
[INFO] Including org.unbescape:unbescape:jar:1.1.6.RELEASE in the shaded jar.
[INFO] Including org.scala-lang.modules:scala-parser-combinators_2.12:jar:1.1.1 in the shaded jar.
[INFO] Including com.github.scopt:scopt_2.12:jar:3.7.0 in the shaded jar.
[INFO] Including io.gatling:jsonpath_2.12:jar:0.6.14 in the shaded jar.
[INFO] Including org.jodd:jodd-json:jar:5.0.5 in the shaded jar.
[INFO] Including org.jodd:jodd-bean:jar:5.0.5 in the shaded jar.
[INFO] Including org.jodd:jodd-core:jar:5.0.5 in the shaded jar.
[INFO] Including net.sf.saxon:Saxon-HE:jar:9.9.0-1 in the shaded jar.
[INFO] Including org.jodd:jodd-lagarto:jar:5.0.5 in the shaded jar.
[INFO] Including org.jodd:jodd-log:jar:5.0.5 in the shaded jar.
[INFO] Including com.tdunning:t-digest:jar:3.1 in the shaded jar.
[INFO] Including io.gatling:gatling-app:jar:3.0.0 in the shaded jar.
[INFO] Including io.gatling:gatling-http:jar:3.0.0 in the shaded jar.
[INFO] Including org.scala-lang.modules:scala-xml_2.12:jar:1.1.0 in the shaded jar.
[INFO] Including io.gatling:gatling-jms:jar:3.0.0 in the shaded jar.
[INFO] Including org.apache.geronimo.specs:geronimo-jms_1.1_spec:jar:1.1.1 in the shaded jar.
[INFO] Including io.gatling:gatling-jdbc:jar:3.0.0 in the shaded jar.
[INFO] Including io.gatling:gatling-redis:jar:3.0.0 in the shaded jar.
[INFO] Including net.debasishg:redisclient_2.12:jar:3.7 in the shaded jar.
[INFO] Including commons-pool:commons-pool:jar:1.6 in the shaded jar.
[INFO] Including io.gatling:gatling-graphite:jar:3.0.0 in the shaded jar.
[INFO] Including org.hdrhistogram:HdrHistogram:jar:2.1.10 in the shaded jar.
[INFO] Including io.gatling:gatling-recorder:jar:3.0.0 in the shaded jar.
[INFO] Including org.scala-lang.modules:scala-swing_2.12:jar:2.0.1 in the shaded jar.
[INFO] Including com.fasterxml.jackson.core:jackson-databind:jar:2.9.7 in the shaded jar.
[INFO] Including com.fasterxml.jackson.core:jackson-annotations:jar:2.9.0 in the shaded jar.
[INFO] Including com.fasterxml.jackson.core:jackson-core:jar:2.9.7 in the shaded jar.
[INFO] Including org.json4s:json4s-jackson_2.12:jar:3.6.1 in the shaded jar.
[INFO] Including org.json4s:json4s-core_2.12:jar:3.6.1 in the shaded jar.
[INFO] Including org.json4s:json4s-ast_2.12:jar:3.6.1 in the shaded jar.
[INFO] Including org.json4s:json4s-scalap_2.12:jar:3.6.1 in the shaded jar.
[INFO] Including com.thoughtworks.paranamer:paranamer:jar:2.8 in the shaded jar.
[INFO] Including org.bouncycastle:bcpkix-jdk15on:jar:1.60 in the shaded jar.
[INFO] Including org.bouncycastle:bcprov-jdk15on:jar:1.60 in the shaded jar.
[INFO] Including io.netty:netty-codec-http:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-codec:jar:4.1.30.Final in the shaded jar.
[INFO] Including com.typesafe.akka:akka-actor_2.12:jar:2.5.17 in the shaded jar.
[INFO] Including io.gatling:gatling-http-client:jar:3.0.0 in the shaded jar.
[INFO] Including io.gatling:gatling-netty-util:jar:3.0.0 in the shaded jar.
[INFO] Including io.netty:netty-buffer:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-common:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-handler:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-transport:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-handler-proxy:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-codec-socks:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-resolver-dns:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-resolver:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-codec-dns:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-transport-native-epoll:jar:linux-x86_64:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-transport-native-unix-common:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-codec-http2:jar:4.1.30.Final in the shaded jar.
[INFO] Including io.netty:netty-tcnative-boringssl-static:jar:2.0.15.Final in the shaded jar.
[INFO] Including com.sun.activation:javax.activation:jar:1.2.0 in the shaded jar.
[INFO] Including org.slf4j:slf4j-api:jar:1.7.25 in the shaded jar.
[INFO] Including com.typesafe.scala-logging:scala-logging_2.12:jar:3.9.0 in the shaded jar.
[INFO] Including ch.qos.logback:logback-classic:jar:1.2.3 in the shaded jar.
[INFO] Including ch.qos.logback:logback-core:jar:1.2.3 in the shaded jar.
[INFO] Including io.gatling:gatling-commons:jar:3.0.0 in the shaded jar.
[INFO] Including org.scala-lang:scala-reflect:jar:2.12.7 in the shaded jar.
[INFO] Including com.typesafe:config:jar:1.3.3 in the shaded jar.
[INFO] Including com.dongxiguo:fastring_2.12:jar:1.0.0 in the shaded jar.
[INFO] Including io.suzaku:boopickle_2.12:jar:1.3.0 in the shaded jar.
[INFO] Including org.typelevel:spire-macros_2.12:jar:0.16.0 in the shaded jar.
[INFO] Including com.softwaremill.quicklens:quicklens_2.12:jar:1.4.11 in the shaded jar.
[INFO] Including org.scala-lang.modules:scala-java8-compat_2.12:jar:0.9.0 in the shaded jar.
[INFO] Including com.eatthepath:fast-uuid:jar:0.1 in the shaded jar.
[INFO] Replacing original artifact with shaded artifact.
[INFO] Replacing /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/fat-gatling-jar-0.4.jar with /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/fat-gatling-jar-0.4-shaded.jar
[INFO] Dependency-reduced POM written at: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/dependency-reduced-pom.xml
[INFO]
[INFO] --- gatling-maven-plugin:3.0.0:test (BasicSimulation) @ fat-gatling-jar ---
Simulation me.jvt.hacking.BasicSimulation started...
================================================================================
2018-11-18 14:14:29 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_1 (OK=1 KO=0 )
> request_1 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[--------------------------------------------------------------------------] 0%
waiting: 0 / active: 1 / done: 0
================================================================================
================================================================================
2018-11-18 14:14:31 6s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_1 (OK=1 KO=0 )
> request_1 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[##########################################################################]100%
waiting: 0 / active: 0 / done: 1
================================================================================
Simulation me.jvt.hacking.BasicSimulation completed in 5 seconds
Parsing log file(s)...
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 2 (OK=2 KO=0 )
> min response time 31 (OK=31 KO=- )
> max response time 99 (OK=99 KO=- )
> mean response time 65 (OK=65 KO=- )
> std deviation 34 (OK=34 KO=- )
> response time 50th percentile 65 (OK=65 KO=- )
> response time 75th percentile 82 (OK=82 KO=- )
> response time 95th percentile 96 (OK=96 KO=- )
> response time 99th percentile 98 (OK=98 KO=- )
> mean requests/sec 0.333 (OK=0.333 KO=- )
---- Response Time Distribution ------------------------------------------------
> t < 25 ms 0 ( 0%)
> 25 ms < t < 50 ms 1 ( 50%)
> t > 50 ms 1 ( 50%)
> failed 0 ( 0%)
================================================================================
Reports generated in 0s.
Please open the following file: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/gatling/basicsimulation-20181118141424648/index.html
[INFO]
[INFO] --- gatling-maven-plugin:3.0.0:test (OtherSimulation) @ fat-gatling-jar ---
Simulation me.jvt.hacking.OtherSimulation started...
================================================================================
2018-11-18 14:14:42 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_2 (OK=1 KO=0 )
> request_2 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[--------------------------------------------------------------------------] 0%
waiting: 0 / active: 1 / done: 0
================================================================================
================================================================================
2018-11-18 14:14:43 6s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_2 (OK=1 KO=0 )
> request_2 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[##########################################################################]100%
waiting: 0 / active: 0 / done: 1
================================================================================
Simulation me.jvt.hacking.OtherSimulation completed in 5 seconds
Parsing log file(s)...
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 2 (OK=2 KO=0 )
> min response time 40 (OK=40 KO=- )
> max response time 89 (OK=89 KO=- )
> mean response time 65 (OK=65 KO=- )
> std deviation 25 (OK=25 KO=- )
> response time 50th percentile 65 (OK=65 KO=- )
> response time 75th percentile 77 (OK=77 KO=- )
> response time 95th percentile 87 (OK=87 KO=- )
> response time 99th percentile 89 (OK=89 KO=- )
> mean requests/sec 0.333 (OK=0.333 KO=- )
---- Response Time Distribution ------------------------------------------------
> t < 25 ms 0 ( 0%)
> 25 ms < t < 50 ms 1 ( 50%)
> t > 50 ms 1 ( 50%)
> failed 0 ( 0%)
================================================================================
Reports generated in 0s.
Please open the following file: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/target/gatling/othersimulation-20181118141437364/index.html
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 40.180 s
[INFO] Finished at: 2018-11-18T14:14:44Z
[INFO] ------------------------------------------------------------------------
It builds as before, but as we can see, there's a bit more in there which relates to building the JAR.
We set the Gatling class as our main to allow us to run the JAR on its own, allowing us to specify the simulation on the command-line:
% java -jar target/fat-gatling-jar-0.4.jar -s me.jvt.hacking.BasicSimulation
14:20:32.782 [main] INFO io.gatling.core.config.GatlingConfiguration$ - Gatling will try to use 'gatling.conf' as custom config file.
...
14:20:34.374 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Write request WritableRequest{request=DefaultFullHttpRequest(decodeResult: success, version: HTTP/1.1, content: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 0, cap: 0))
GET / HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Connection: close
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20100101 Firefox/16.0
accept-encoding: gzip
origin: https://gatling.io
host: gatling.io, content=null}
14:20:34.380 [gatling-http-1-1] DEBUG io.netty.handler.ssl.SslHandler - [id: 0x6aeb6892, L:/192.168.0.19:52922 - R:gatling.io/52.47.152.183:443] HANDSHAKEN: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
14:20:34.456 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpResponse(decodeResult: success, version: HTTP/1.1)
HTTP/1.1 200 OK
Server: nginx/1.12.1
Date: Sun, 18 Nov 2018 14:20:34 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
X-Powered-By: PHP/7.0.31
Link: <https://gatling.io/wp-json/>; rel="https://api.w.org/"
Link: <https://gatling.io/?p=3640>; rel=shortlink
X-Cache: HIT'
14:20:34.458 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 8192, cap: 8192/8192, unwrapped: PooledUnsafeDirectByteBuf(ridx: 8517, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.459 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 7867, cap: 7867/7867, unwrapped: PooledUnsafeDirectByteBuf(ridx: 16384, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.461 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 8192, cap: 8192/8192, unwrapped: PooledUnsafeDirectByteBuf(ridx: 8192, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.461 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 8192, cap: 8192/8192, unwrapped: PooledUnsafeDirectByteBuf(ridx: 16384, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.484 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 325, cap: 325/325, unwrapped: PooledUnsafeDirectByteBuf(ridx: 327, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.485 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 8192, cap: 8192/8192, unwrapped: PooledUnsafeDirectByteBuf(ridx: 8525, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.485 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 7859, cap: 7859/7859, unwrapped: PooledUnsafeDirectByteBuf(ridx: 16384, widx: 16384, cap: 16413)), decoderResult: success)'
14:20:34.488 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 1741, cap: 1741/1741, unwrapped: PooledUnsafeDirectByteBuf(ridx: 1743, widx: 1748, cap: 1777)), decoderResult: success)'
14:20:34.488 [gatling-http-1-1] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='EmptyLastHttpContent'
14:20:34.491 [main] DEBUG io.gatling.http.engine.HttpEngine - Warm up request https://gatling.io successful
14:20:34.493 [main] INFO io.gatling.http.engine.HttpEngine - Warm up done
14:20:34.537 [main] DEBUG io.gatling.http.cache.HttpCaches - HTTP/2 disabled
Simulation me.jvt.hacking.BasicSimulation started...
14:20:34.609 [GatlingSystem-akka.actor.default-dispatcher-4] DEBUG io.gatling.http.engine.tx.HttpTxExecutor - Sending request=request_1 uri=http://computer-database.gatling.io/: scenario=BasicSimulation, userId=1
14:20:34.614 [GatlingSystem-akka.actor.default-dispatcher-4] DEBUG io.gatling.core.controller.inject.open.OpenWorkload - Start user #1
14:20:34.615 [GatlingSystem-akka.actor.default-dispatcher-4] DEBUG io.gatling.core.controller.inject.open.OpenWorkload - Injecting 1 users in scenario BasicSimulation, continue=false
14:20:34.616 [GatlingSystem-akka.actor.default-dispatcher-4] INFO io.gatling.core.controller.inject.Injector - StoppedInjecting
14:20:34.693 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Write request WritableRequest{request=DefaultFullHttpRequest(decodeResult: success, version: HTTP/1.1, content: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 0, cap: 0))
GET / HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
DNT: 1
Accept-Language: en-US,en;q=0.5
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0
accept-encoding: gzip, deflate
origin: http://computer-database.gatling.io
host: computer-database.gatling.io, content=null}
14:20:34.733 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpResponse(decodeResult: success, version: HTTP/1.1)
HTTP/1.1 303 See Other
Server: nginx/1.12.1
Date: Sun, 18 Nov 2018 14:20:34 GMT
Content-Length: 0
Connection: keep-alive
Keep-Alive: timeout=5
Location: /computers'
14:20:34.734 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='EmptyLastHttpContent'
14:20:34.749 [gatling-http-1-2] DEBUG io.gatling.http.engine.tx.HttpTxExecutor - Sending request=request_1 uri=http://computer-database.gatling.io/computers: scenario=BasicSimulation, userId=1
14:20:34.749 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Write request WritableRequest{request=DefaultFullHttpRequest(decodeResult: success, version: HTTP/1.1, content: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 0, cap: 0))
GET /computers HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
DNT: 1
Accept-Language: en-US,en;q=0.5
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0
Referer: http://computer-database.gatling.io/
accept-encoding: gzip, deflate
origin: http://computer-database.gatling.io
host: computer-database.gatling.io, content=null}
14:20:34.785 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpResponse(decodeResult: success, version: HTTP/1.1)
HTTP/1.1 200 OK
Server: nginx/1.12.1
Date: Sun, 18 Nov 2018 14:20:34 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 7197
Connection: keep-alive
Keep-Alive: timeout=5'
14:20:34.785 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 837, cap: 837/837, unwrapped: PooledUnsafeDirectByteBuf(ridx: 1024, widx: 1024, cap: 1024)), decoderResult: success)'
14:20:34.786 [gatling-http-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultLastHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 6360, cap: 6360/6360, unwrapped: PooledUnsafeDirectByteBuf(ridx: 6360, widx: 6360, cap: 16384)), decoderResult: success)'
14:20:34.807 [gatling-http-1-2] DEBUG io.gatling.core.action.Pause - Pausing for 5000ms (real=4980ms)
================================================================================
2018-11-18 14:20:38 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_1 (OK=1 KO=0 )
> request_1 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[--------------------------------------------------------------------------] 0%
waiting: 0 / active: 1 / done: 0
================================================================================
14:20:39.806 [GatlingSystem-akka.actor.default-dispatcher-5] DEBUG io.gatling.core.action.Exit - End user #1
14:20:39.812 [GatlingSystem-akka.actor.default-dispatcher-5] INFO io.gatling.core.controller.inject.Injector - All users of scenario BasicSimulation are stopped
14:20:39.812 [GatlingSystem-akka.actor.default-dispatcher-5] INFO io.gatling.core.controller.inject.Injector - Stopping
14:20:39.813 [GatlingSystem-akka.actor.default-dispatcher-4] INFO io.gatling.core.controller.Controller - Injector has stopped, initiating graceful stop
================================================================================
2018-11-18 14:20:39 6s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=2 KO=0 )
> request_1 (OK=1 KO=0 )
> request_1 Redirect 1 (OK=1 KO=0 )
---- BasicSimulation -----------------------------------------------------------
[##########################################################################]100%
waiting: 0 / active: 0 / done: 1
================================================================================
14:20:39.900 [GatlingSystem-akka.actor.default-dispatcher-3] INFO io.gatling.core.controller.Controller - StatsEngineStopped
Simulation me.jvt.hacking.BasicSimulation completed in 5 seconds
Parsing log file(s)...
14:20:39.950 [main] INFO io.gatling.charts.stats.LogFileReader - Collected ArrayBuffer(/home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/results/basicsimulation-20181118142033626/simulation.log) from basicsimulation-20181118142033626
14:20:39.957 [main] INFO io.gatling.charts.stats.LogFileReader - First pass
14:20:39.963 [main] INFO io.gatling.charts.stats.LogFileReader - First pass done: read 5 lines
14:20:39.971 [main] INFO io.gatling.charts.stats.LogFileReader - Second pass
14:20:39.999 [main] INFO io.gatling.charts.stats.LogFileReader - Second pass: read 5 lines
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 2 (OK=2 KO=0 )
> min response time 37 (OK=37 KO=- )
> max response time 122 (OK=122 KO=- )
> mean response time 80 (OK=80 KO=- )
> std deviation 43 (OK=43 KO=- )
> response time 50th percentile 80 (OK=80 KO=- )
> response time 75th percentile 101 (OK=101 KO=- )
> response time 95th percentile 118 (OK=118 KO=- )
> response time 99th percentile 121 (OK=121 KO=- )
> mean requests/sec 0.333 (OK=0.333 KO=- )
---- Response Time Distribution ------------------------------------------------
> t < 25 ms 0 ( 0%)
> 25 ms < t < 50 ms 1 ( 50%)
> t > 50 ms 1 ( 50%)
> failed 0 ( 0%)
================================================================================
Reports generated in 0s.
Please open the following file: /home/jamie/workspaces/jvt.me/tmp/fat-gatling-jar/results/basicsimulation-20181118142033626/index.html
We ideally should remove our gatling-maven-plugin and instead run our JARs separately:
<groupId>me.jvt.hacking</groupId>
<artifactId>fat-gatling-jar</artifactId>
- <version>0.4</version>
+ <version>0.5</version>
<packaging>jar</packaging>
<properties>
@@ -14,7 +14,7 @@
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<gatling.version>3.0.0</gatling.version>
- <gatling-plugin.version>3.0.0</gatling-plugin.version>
+ <maven-exec.version>1.2.1</maven-exec.version>
<scala-maven-plugin.version>3.4.4</scala-maven-plugin.version>
</properties>
@@ -76,28 +76,36 @@
</plugin>
<plugin>
- <groupId>io.gatling</groupId>
- <artifactId>gatling-maven-plugin</artifactId>
- <version>${gatling-plugin.version}</version>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>exec-maven-plugin</artifactId>
+ <version>${maven-exec.version}</version>
<executions>
<execution>
<id>BasicSimulation</id>
<goals>
- <goal>test</goal>
+ <goal>java</goal>
</goals>
- <phase>verify</phase>
+ <phase>integration-test</phase>
<configuration>
- <simulationClass>me.jvt.hacking.BasicSimulation</simulationClass>
+ <mainClass>io.gatling.app.Gatling</mainClass>
+ <arguments>
+ <argument>-s</argument>
+ <argument>me.jvt.hacking.BasicSimulation</argument>
+ </arguments>
</configuration>
</execution>
<execution>
<id>OtherSimulation</id>
<goals>
- <goal>test</goal>
+ <goal>java</goal>
</goals>
- <phase>verify</phase>
+ <phase>integration-test</phase>
<configuration>
- <simulationClass>me.jvt.hacking.OtherSimulation</simulationClass>
+ <mainClass>io.gatling.app.Gatling</mainClass>
+ <arguments>
+ <argument>-s</argument>
+ <argument>me.jvt.hacking.OtherSimulation</argument>
+ </arguments>
</configuration>
</execution>
</executions>
Notes
You may receive the following error if your Maven shade configuration doesn't include the excludes mentioned in this StackOverflow post:
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.SecurityException: Invalid signature file digest for Manifest main attributes
at sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:330)
at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:263)
at java.util.jar.JarVerifier.processEntry(JarVerifier.java:318)
at java.util.jar.JarVerifier.update(JarVerifier.java:230)
at java.util.jar.JarFile.initializeVerifier(JarFile.java:383)
at java.util.jar.JarFile.ensureInitialization(JarFile.java:612)
at java.util.jar.JavaUtilJarAccessImpl.ensureInitialization(JavaUtilJarAccessImpl.java:69)
at sun.misc.URLClassPath$JarLoader$2.getManifest(URLClassPath.java:991)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:451)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)
You may also want to tweak your bounds for response times so your graphs are a little more useful than the defaults.
This blog post is supported by the repo fat-gatling-jar.
