What are some alternatives?
When comparing Apache Chukwa and Amazon EMR, you can also consider the following products
Hadoop HDFS - The Apache HDFS is a distributed file system that makes it possible to scale a single Apache Hadoop cluster to hundreds (and even thousands) of nodes.
Google Cloud Dataflow - Google Cloud Dataflow is a fully-managed cloud service and programming model for batch and streaming big data processing.
Google BigQuery - A fully managed data warehouse for large-scale data analytics.