Checking out Ambari source

Follow the instructions under Checkout source code section of "How to contribute" guide.

We'll refer to the top-level "ambari" directory as AMBARI_DIR in this document.

Tools needed to build Ambari

The following tools are needed to build Ambari from source.

Alternatively, you can easily launch a VM that is preconfigured with all the tools that you need.  See the Pre-Configured Development Environment section in the Quick Start Guide.

• xCode (if using Mac - free download from the apple store)
• JDK 8 (Ambari 2.6 and below can be compiled with JDK 7, from Ambari 2.7, it can be compiled with at least JDK 8)
• Apache Maven 3.3.9 or later
  Tip: In order to persist your changes to the JAVA_HOME environment variable and add Maven to your path, create the following files:
  
  File: ~/.profile

   

  Code Block
  source ~/.bashrc

   

  File: ~/.bashrc

   

  Code Block
  export PATH=/usr/local/apache-maven-3.3.9/bin:$PATH export JAVA_HOME=$(/usr/libexec/java_home) export _JAVA_OPTIONS="-Xmx2048m -XX:MaxPermSize=512m -Djava.awt.headless=true"

  
  

• Python 2.6 (Ambari 2.7 or later require Python 2.7 as minimum supported version)

• Python setuptools:
  for Python 2.6: Download setuptools and run:

  Code Block
  sh setuptools-0.6c11-py2.6.egg

  for Python 2.7:  Download setuptools and run:

  Code Block
  sh setuptools-0.6c11-py2.7.egg

  
  

• rpmbuild (rpm-build package)

• g++ (gcc-c++ package)

Running Unit Tests

• mvn clean test

• Run unit tests in a single module:

  Code Block
  mvn -pl ambari-server test

  
  

• Run only Java tests:

  Code Block
  mvn -pl ambari-server -DskipPythonTests

  
  

• Run only specific Java tests:

  Code Block
  mvn -pl ambari-server -DskipPythonTests -Dtest=AgentHostInfoTest test

  
  

• Run only Python tests:

  Code Block
  mvn -pl ambari-server -DskipSurefireTests test

  
  

• Run only specific Python tests:

  Code Block
  mvn -pl ambari-server -DskipSurefireTests -Dpython.test.mask=TestUtils.py test

  
  

• Run only Checkstyle and RAT checks:

  Code Block
  mvn -pl ambari-server -DskipTests test

  
  

NOTE: Please make sure you have npm in the path before running the unit tests.

Generating Findbugs Report

• mvn clean install

This will generate xml and html report unders target/findbugs. You can also add flags to skip unit tests to generate report faster.

Building Ambari

Note: if you can an error that too many files are open while building, then run: ulimit -n 10000 (for example)

To build Ambari RPMs, run the following.

Note: Replace ${AMBARI_VERSION} with a 4-digit version you want the artifacts to be (e.g., -DnewVersion=1.6.1.1)

Note: If running into errors while compiling the ambari-metrics package due to missing the artifacts of jms, jmxri, jmxtools:

The work around is to manually install the three missing artifacts:

# Update the revision property to the release version
mvn versions:set-property -Dproperty=revision -DnewVersion=2.8.0.0.0 

mvn -B clean install package rpm:rpm -DskipTests -Dpython.ver="python >= 2.6" -Preplaceurl

# Update the revision property to the release version
mvn versions:set-property -Dproperty=revision -DnewVersion=2.8.0.0.0 
 
mvn -B clean install package rpm:rpm -DskipTests -Psuse11 -Dpython.ver="python >= 2.6" -Preplaceurl

# Update the revision property to the release version
mvn versions:set-property -Dproperty=revision -DnewVersion=2.8.0.0.0 
 
mvn -B clean install package jdeb:jdeb -DskipTests -Dpython.ver="python >= 2.6" -Preplaceurl

mvn versions:set -DnewVersion=${AMBARI_VERSION}
 
#Note: The ambari-metrics project is not wired up to the main ambari project. However there is a dependency on ambari-metrics-common to build the ambari-server RPM. 
#Hence you also need to set ambari-metrics project version as well.
pushd ambari-metrics
mvn versions:set -DnewVersion=${AMBARI_VERSION}
popd
 
mvn -B clean install package rpm:rpm -DskipTests -Dpython.ver="python >= 2.6" -Preplaceurl

mvn versions:set -DnewVersion=${AMBARI_VERSION}
 
#Note: The ambari-metrics project is not wired up to the main ambari project. However there is a dependency on ambari-metrics-common to build the ambari-server RPM. 
#Hence you also need to set ambari-metrics project version as well.
pushd ambari-metrics
mvn versions:set -DnewVersion=${AMBARI_VERSION}
popd
 
mvn -B clean install package rpm:rpm -DskipTests -Psuse11 -Dpython.ver="python >= 2.6" -Preplaceurl

mvn versions:set -DnewVersion=${AMBARI_VERSION}
 
#Note: The ambari-metrics project is not wired up to the main ambari project. However there is a dependency on ambari-metrics-common to build the ambari-server RPM. 
#Hence you also need to set ambari-metrics project version as well.
pushd ambari-metrics
mvn versions:set -DnewVersion=${AMBARI_VERSION}
popd
 
mvn -B clean install package jdeb:jdeb -DskipTests -Dpython.ver="python >= 2.6" -Preplaceurl

Ambari Server will create following packages

• RPM will be created under AMBARI_DIR/ambari-server/target/rpm/ambari-server/RPMS/noarch.
• DEB will be created under AMBARI_DIR/ambari-server/target/

Ambari Agent will create following packages

• RPM will be created under AMBARI_DIR/ambari-agent/target/rpm/ambari-agent/RPMS/x86_64.
• DEB will be created under AMBARI_DIR/ambari-agent/target

Optional parameters:

• -X -e: add these options for more verbose output by Maven.  Useful when debugging Maven issues.
• -DdefaultStackVersion=STACK-VERSION
• Sets the default stack and version to be used for installation (e.g., -DdefaultStackVersion=HDP-1.3.0)
• -DenableExperimental=true
• Enables experimental features to be available via Ambari Web (default is false)
• All views can be packaged in RPM by adding -Dviews parameter
  • mvn -B clean install package rpm:rpm -Dviews -DskipTests
• Specific views can be built by adding --projects parameter to the -Dviews
  • mvn -B clean install package rpm:rpm --projects ambari-web,ambari-project,ambari-views,ambari-admin,contrib/views/files,contrib/views/pig,ambari-server,ambari-agent,ambari-client,ambari-shell -Dviews -DskipTests
    
    

NOTE: Run everything as root below.

Building Ambari Metrics

If you plan on installing the Ambari Metrics service, you will also need to build the Ambari Metrics project. 

cd ambari-metrics
mvn clean package -Dbuild-rpm -DskipTests

For Ubuntu:
cd ambari-metrics
mvn clean package -Dbuild-deb -DskipTests

Note:

The metrics rpms will be found at: ambari-metrics-assembly/target/. These would be need for installing the Ambari Metrics service.

Running the Ambari Server

First, install the Ambari Server RPM.

On RHEL/CentOS:

yum install ambari-server/target/rpm/ambari-server/RPMS/noarch/ambari-server-*.noarch.rpm 

On SUSE/SLES:

zypper install ambari-server/target/rpm/ambari-server/RPMS/noarch/ambari-server-*.noarch.rpm 

On Ubuntu 12:

 
dpkg --install ambari-server/target/ambari-server-*.deb          # Will fail with missing dependencies errors
apt-get update                                                   # Update locations of dependencies
apt-get install -f                                               # Install all failed dependencies
dpkg --install ambari-server/target/ambari-server-*.deb          # Will succeed

Initialize Ambari Server:

ambari-server setup

Start up Ambari Server:

ambari-server start

See Ambari Server log:

tail -f /var/log/ambari-server/ambari-server.log

To access Ambari, go to

http://{ambari-server-hostname}:8080

from your web browser and log in with username admin and password admin.

Install and Start the Ambari Agent Manually on Each Host in the Cluster

Install the Ambari Agent RPM.

On RHEL/CentOS:

yum install ambari-agent/target/rpm/ambari-agent/RPMS/x86_64/ambari-agent-*.rpm

SUSE/SLES:

zypper install ambari-agent/target/rpm/ambari-agent/RPMS/x86_64/ambari-agent-*.rpm

Ubuntu12:

dpkg --install ambari-agent/target/ambari-agent-*.deb

Edit the location of Ambari Server in /etc/ambari-agent/conf/ambari-agent.ini by editing the hostname line.

Start Ambari Agent:

ambari-agent start

See Ambari Agent log:

tail -f /var/log/ambari-agent/ambari-agent.log

Setting up Ambari in Eclipse

$ mvn clean eclipse:eclipse

After doing the above you should be able to import the project via Eclipse "Import > Maven > Existing Maven Project". Choose the root directory where you cloned the git repository. You should be able to see the following projects on eclipse:

ambari
|
|- ambari-project
|- ambari-server
|- ambari-agent
|- ambari-web

Select the top-level "ambari pom.xml" and click Finish.

Coding Guidelines for Ambari