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Mirror of Apache Kafka

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checkstyle
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clients/src
clients/src
 
 
config
config
 
 
connect
connect
 
 
core/src
core/src
 
 
docs
docs
 
 
examples
examples
 
 
gradle
gradle
 
 
log4j-appender/src
log4j-appender/src
 
 
streams/src
streams/src
 
 
tests
tests
 
 
tools/src/main/java/org/apache/kafka/tools
tools/src/main/java/org/apache/kafka/tools
 
 
vagrant
vagrant
 
 
.gitignore
.gitignore
 
 
CONTRIBUTING.md
CONTRIBUTING.md
 
 
HEADER
HEADER
 
 
LICENSE
LICENSE
 
 
NOTICE
NOTICE
 
 
README.md
README.md
 
 
Vagrantfile
Vagrantfile
 
 
build.gradle
build.gradle
 
 
doap_Kafka.rdf
doap_Kafka.rdf
 
 
gradle.properties
gradle.properties
 
 
gradlew
gradlew
 
 
gradlew.bat
gradlew.bat
 
 
kafka-merge-pr.py
kafka-merge-pr.py
 
 
scala.gradle
scala.gradle
 
 
settings.gradle
settings.gradle
 
 
wrapper.gradle
wrapper.gradle
 
 

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Apache Kafka

See our web site for details on the project.

You need to have Gradle and Java installed.

Java 7 should be used for building in order to support both Java 7 and Java 8 at runtime.

First bootstrap and download the wrapper

cd kafka_source_dir
gradle

Now everything else will work.

Building a jar and running it

./gradlew jar

Follow instructions in http://kafka.apache.org/documentation.html#quickstart

Building source jar

./gradlew srcJar

Building javadocs and scaladocs

./gradlew javadoc
./gradlew javadocJar # builds a jar from the javadocs
./gradlew scaladoc
./gradlew scaladocJar # builds a jar from the scaladocs
./gradlew docsJar # builds both javadoc and scaladoc jar

Running unit tests

./gradlew test

Forcing re-running unit tests w/o code change

./gradlew cleanTest test

Running a particular unit test

./gradlew -Dtest.single=RequestResponseSerializationTest core:test

Running a particular test method within a unit test

./gradlew core:test --tests kafka.api.ProducerFailureHandlingTest.testCannotSendToInternalTopic
./gradlew clients:test --tests org.apache.kafka.clients.MetadataTest.testMetadataUpdateWaitTime

Running a particular unit test with log4j output

Change the log4j setting in either clients/src/test/resources/log4j.properties or core/src/test/resources/log4j.properties

./gradlew -i -Dtest.single=RequestResponseSerializationTest core:test

Building a binary release gzipped tar ball

./gradlew clean
./gradlew releaseTarGz

The above command will fail if you haven't set up the signing key. To bypass signing the artifact, you can run:

./gradlew releaseTarGz -x signArchives

The release file can be found inside ./core/build/distributions/.

Cleaning the build

./gradlew clean

Running a task on a particular version of Scala (either 2.10.6 or 2.11.7)

Note that if building the jars with a version other than 2.10, you need to set the SCALA_BINARY_VERSION variable or change it in bin/kafka-run-class.sh to run the quick start.

You can pass either the major version (eg 2.11) or the full version (eg 2.11.7):

./gradlew -PscalaVersion=2.11 jar
./gradlew -PscalaVersion=2.11 test
./gradlew -PscalaVersion=2.11 releaseTarGz

Running a task for a specific project

This is for core, examples and clients

./gradlew core:jar
./gradlew core:test

Listing all gradle tasks

./gradlew tasks

Building IDE project

Note that this is not strictly necessary (IntelliJ IDEA has good built-in support for Gradle projects, for example).

./gradlew eclipse
./gradlew idea

Building the jar for all scala versions and for all projects

./gradlew jarAll

Running unit tests for all scala versions and for all projects

./gradlew testAll

Building a binary release gzipped tar ball for all scala versions

./gradlew releaseTarGzAll

Publishing the jar for all version of Scala and for all projects to maven

./gradlew uploadArchivesAll

Please note for this to work you should create/update ~/.gradle/gradle.properties and assign the following variables

mavenUrl=
mavenUsername=
mavenPassword=
signing.keyId=
signing.password=
signing.secretKeyRingFile=

Publishing the jars without signing to a local repository

./gradlew -Dorg.gradle.project.skipSigning=true -Dorg.gradle.project.mavenUrl=file://path/to/repo uploadArchivesAll

Building the test jar

./gradlew testJar

Determining how transitive dependencies are added

./gradlew core:dependencies --configuration runtime

Running checkstyle on the java code

./gradlew checkstyleMain checkstyleTest

Limit the number of processes for each task

./gradlew -Dorg.gradle.project.maxParallelForks=1 test

This will most commonly be useful for automated builds where the full resources of the host running the build and tests may not be dedicated to Kafka's build.

Running in Vagrant

See vagrant/README.md.

Contribution

Apache Kafka is interested in building the community; we would welcome any thoughts or patches. You can reach us on the Apache mailing lists.

To contribute follow the instructions here:

About

Mirror of Apache Kafka

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Readme
Apache-2.0 license

Contributing

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