Apache Drill is a schema-free SQL query tool for Hadoop, NoSQL, and cloud storage. It is aimed at users who need fast insights without overhead.
Apache Drill allows you to directly analyze multi-structured and nested data in non-relational databases without transforming or restricting the data. It supports a variety of NoSQL databases and file systems, including HBase, MongoDB, MapR-DB, HDFS, MapR-FS, Amazon S3, Azure Blob Storage, Google Cloud Storage, Swift, NAS, and local files.
Apache Drill is available for free download. It can run on Mac, Windows, and Linux, and can easily be deployed on a cluster of standard servers.