blob: 78ab7435b489e16ea61f1b8ad75b7e177d2f9893 [file] [log] [blame]
Build instructions for Hadoop
* Unix System
* JDK 1.6
* Maven 3.0
* Findbugs 1.3.9 (if running findbugs)
* ProtocolBuffer 2.4.1+ (for MapReduce)
* Autotools (if compiling native code)
* Internet connection for first build (to fetch all Maven and Hadoop dependencies)
Maven main modules:
hadoop (Main Hadoop project)
- hadoop-project (Parent POM for all Hadoop Maven modules. )
(All plugins & dependencies versions are defined here.)
- hadoop-project-dist (Parent POM for modules that generate distributions.)
- hadoop-annotations (Generates the Hadoop doclet used to generated the Javadocs)
- hadoop-assemblies (Maven assemblies used by the different modules)
- hadoop-common-project (Hadoop Common)
- hadoop-hdfs-project (Hadoop HDFS)
- hadoop-mapreduce-project (Hadoop MapReduce)
- hadoop-tools (Hadoop tools like Streaming, Distcp, etc.)
- hadoop-dist (Hadoop distribution assembler)
Where to run Maven from?
It can be run from any module. The only catch is that if not run from utrunk
all modules that are not part of the build run must be installed in the local
Maven cache or available in a Maven repository.
Maven build goals:
* Clean : mvn clean
* Compile : mvn compile [-Pnative]
* Run tests : mvn test [-Pnative]
* Create JAR : mvn package
* Run findbugs : mvn compile findbugs:findbugs
* Run checkstyle : mvn compile checkstyle:checkstyle
* Install JAR in M2 cache : mvn install
* Deploy JAR to Maven repo : mvn deploy
* Run clover : mvn test -Pclover [-DcloverLicenseLocation=${}/.clover.license]
* Run Rat : mvn apache-rat:check
* Build javadocs : mvn javadoc:javadoc
* Build distribution : mvn package [-Pdist][-Pdocs][-Psrc][-Pnative][-Dtar]
* Change Hadoop version : mvn versions:set -DnewVersion=NEWVERSION
Build options:
* Use -Pnative to compile/bundle native code
* Use -Dsnappy.prefix=(/usr/local) & -Dbundle.snappy=(false) to compile
Snappy JNI bindings and to bundle Snappy SO files
* Use -Pdocs to generate & bundle the documentation in the distribution (using -Pdist)
* Use -Psrc to create a project source TAR.GZ
* Use -Dtar to create a TAR with the distribution (using -Pdist)
Tests options:
* Use -DskipTests to skip tests when running the following Maven goals:
'package', 'install', 'deploy' or 'verify'
* -Dtest.exclude=<TESTCLASSNAME>
* -Dtest.exclude.pattern=**/<TESTCLASSNAME1>.java,**/<TESTCLASSNAME2>.java
Building distributions:
Create binary distribution without native code and without documentation:
$ mvn package -Pdist -DskipTests -Dtar
Create binary distribution with native code and with documentation:
$ mvn package -Pdist,native,docs -DskipTests -Dtar
Create source distribution:
$ mvn package -Psrc -DskipTests
Create source and binary distributions with native code and documentation:
$ mvn package -Pdist,native,docs,src -DskipTests -Dtar
Create a local staging version of the website (in /tmp/hadoop-site)
$ mvn clean site; mvn site:stage -DstagingDirectory=/tmp/hadoop-site