stack_extension.rst

Kafka

https://kafka.apache.org/

https://www.mapr.com/blog/getting-started-sample-programs-apache-kafka-09

http://blog.cloudera.com/blog/2014/09/apache-kafka-for-beginners/

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Elasticsearch:

https://www.elastic.co/

Mesos:

http://mesos.apache.org/

Spark:

http://spark.apache.org/

Storm:

http://storm.apache.org/

Zookeeper:

https://zookeeper.apache.org/