This is the source code repository of the Stratosphere research project.

See www.stratosphere.eu for project details, publications, etc

ozone is the codename of the latest Stratosphere distribution.

Build Status:

Below are three short tutorials that guide you through the first steps: Building, running and developing.

This tutorial shows how to build Stratosphere on your own system. Please open a bug report if you have any troubles!

• Unix-like environment (We use Linux, Mac OS X, it should run with cygwin)
• git
• maven
• Java 6 or 7

.

git clone https://github.com/dimalabs/ozone.git
cd ozone
mvn -DskipTests clean package # this will take up to 5 minutes

Stratosphere is now installed in stratosphere-dist/target If you’re a Debian/Ubuntu user, you’ll find a .deb package. We will continue with the generic case.

cd stratosphere-dist/target/stratosphere-dist-0.2-ozone-bin/stratosphere-0.2-ozone/

Note: The directory structure here looks like the contents of the official release distribution.

We will run a simple “Word Count” example. The easiest way to start Stratosphere on your local machine is so-called "local-mode":

./bin/start-local.sh

Get some test data:

 wget -O hamlet.txt http:https://www.gutenberg.org/cache/epub/1787/pg1787.txt

Start the job:

./bin/pact-client.sh run --jarfile ./examples/pact/pact-examples-0.2-ozone-WordCount.jar --arguments 1 file:https://`pwd`/hamlet.txt file:https://`pwd`/wordcount-result.txt

You will find a file called wordcount-result.txt in your current directory.

(And get a nice execution plan overview for free!)

./bin/start-local.sh
./bin/pact-webfrontend.sh start

Get some test data: wget -O ~/hamlet.txt http:https://www.gutenberg.org/cache/epub/1787/pg1787.txt

• Point your browser to to http:https://localhost:8080/launch.html. Upload the WordCount.jar using the upload form in the lower right box. The jar is located in ./examples/pact/pact-examples-0.2-ozone-WordCount.jar.

• Select the WordCount jar from the list of available jars (upper left).

• Enter the argument line in the lower-left box: 1 file:https://<path to>/hamlet.txt file:https://<wherever you want the>/wordcount-result.txt

• Hit “Run Job”

To contribute back to the project or develop your own jobs for Stratosphere, you need a working development environment. We use Eclipse and IntelliJ for development. Here we focus on Eclipse.

Import the Stratosphere source code using Maven's Import tool:

• Select "Import" from the "File"-menu.
• Expand "Maven" node, select "Existing Maven Projects", and click "next" button
• Select the root directory by clicking on the "Browse" button and navigate to the top folder of the cloned Stratosphere Git repository.
• Ensure that all projects are selected and click the "Finish" button.

Create a new Eclipse Project that requires Stratosphere in its Build Path!

Use this skeleton as an entry point for your own Jobs: It allows you to hit the “Run as” -> “Java Application” feature of Eclipse. (You have to stop the application manually, because only one instance can run at a time)

public class Tutorial implements PlanAssembler, PlanAssemblerDescription {

	public static void execute(Plan toExecute) throws Exception {
		LocalExecutor executor = new LocalExecutor();
		executor.start();
		long runtime = executor.executePlan(toExecute);
		System.out.println("runtime:  " + runtime);
		executor.stop();
	}

	@Override
	public Plan getPlan(String... args) {
		// your Plan goes here
	}

	@Override
	public String getDescription() {
		return "Usage: …. "; // TODO
	}

	public static void main(String[] args) throws Exception {
		Tutorial tut = new Tutorial();
		Plan toExecute = tut.getPlan( /* Arguments */);
		execute(toExecute);
	}
}

Don’t hesitate to ask!

Open an issue on github, if you need our help.

We have a mailing list for our users: https://lists.tu-berlin.de/mailman/listinfo/stratosphere-users

There is our (old) official Wiki.

We are in the progress of migrating it to the GitHub Wiki

Please make edits to the Wiki if you find inconsistencies or Open an issue

This is an active open-source project. We are always open to people who want to use the system or contribute to it.

The development community lives on GitHub and our [mailing list](https://lists.tu-berlin.de/mailman/listinfo/stratosphere-dev (But we prefer github)

We use the github Pull Request system for the development of Stratosphere. Just open a request if you want to contribute.

• Bug reports
• Bug fixes
• Documentation
• Tools that ease the use and development of Stratosphere
• Well-written Stratosphere jobs

Let us know if you have created a system that uses Stratosphere, so that we can link to you.