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Ozone is a work in progress and currently lives in a branchthere is no official release. To use it, you have to build a package and deploy a cluster.

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Build Ozone

  git clone git://git.apache.org/hadoop.git
  cd hadoop && git checkout trunk
  mvn clean package install -Phdds -DskipTests=true -Dmaven.javadoc.skip=true -Pdist -Dtar -DskipShade

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This will give you a tarball in your distribution directory. Here is an example of the tarball that will be generated.

* `~~/apache/hadoop/hadoop-dist/target/hadoop-project-dist-3.2.0-SNAPSHOT.tar.gz`

At this point, we have an option to set up a physical cluster or run ozone via docker.

Start an Ozone cluster using docker

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Start Cluster Using Docker

After building the package, run the following command in the git root directory.

  cd $(git rev-parse --show-toplevel)/dev-support/compose/ozone
  docker-compose up -d

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To Shutdown the cluster, please run the command docker-compose down

Running commands against ozone

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Run Commands Against Ozone

To run commands on your dozone Ozone cluster please ssh into the data nodeany DataNode.

  docker-compose exec datanode bash

 Now we

The Ozone command shell is documented here.

Alternatively, you can try running freon can run oz command shell or freon. Here is an example of running freon, the load generator for ozone.   The following command creates a volume, ten buckets and writes one hundred keys to each bucket using corona.

  cd hadoop/bin
  ./hdfs freon -mode offline -validateWrites -numOfVolumes 1 -numOfBuckets 10 -numOfKeys 100

You can check the KSM OzoneManager UI to see the activity generated by corona. The docker-compose configuration forwards port 9874 of the docker host to the OzoneManager web UI.

http://localhost:9874/

While you are there, please check out the ozone documentation.

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