Apache Hadoop with Spark and Zeppelin

This bundle is a 6 node cluster designed to scale out. Built around Apache Hadoop components, it contains the following units:

• 1 NameNode (HDFS)
• 1 ResourceManager (YARN)
• 3 Slaves (DataNode and NodeManager)
• 1 Spark
  • 1 Plugin (colocated on the Spark unit)
  • 1 Zeppelin (colocated on the Spark unit)

Usage

Deploy this bundle using juju-quickstart:

juju quickstart apache-hadoop-spark-zeppelin

See juju quickstart --help for deployment options, including machine constraints and how to deploy a locally modified version of bundle.yaml.

Verify the deployment

The services provide extended status reporting to indicate when they are ready:

juju status --format=tabular

This is particularly useful when combined with watch to track the on-going progress of the deployment:

watch -n 0.5 juju status --format=tabular

The charm for each core component (namenode, resourcemanager, spark, zeppelin) also each provide a smoke-test action that can be used to verify that each component is functioning as expected. You can run them all and then watch the action status list:

juju action do namenode/0 smoke-test
juju action do resourcemanager/0 smoke-test
juju action do spark/0 smoke-test
juju action do zeppelin/0 smoke-test
watch -n 0.5 juju action status

Eventually, all of the actions should settle to status: completed. If any go instead to status: failed then it means that component is not working as expected. You can get more information about that component's smoke test:

juju action fetch <action-id>

Access the Zeppelin web interface

To access the Apache Zeppelin web interface, first expose the Zeppelin service:

juju expose zeppelin

The web interface is available at the following location (find spark_unit_ip_address with juju status spark/0 | grep public-address):

http://{spark_unit_ip_address}:9090

Scale out

This bundle was designed to scale out. To increase the amount of slaves, you can add units to the slave service. To add one unit:

juju add-unit slave

Or you can add multiple units at once:

juju add-unit -n4 slave

Contact Information

• [email protected]

Help

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• Juju community