Amazon EMR - Amazon Elastic MapReduce is a web service that makes it easy to quickly process vast amounts of data.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Apache Spark - Apache Spark is an engine for big data processing, with built-in modules for streaming, SQL, machine learning and graph processing.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Microsoft Azure HDInsight - Azure HDInsight is an Apache Hadoop distribution powered by the cloud.
Prometheus - An open-source systems monitoring and alerting toolkit.