Grill is a unified analytics platform developed by Inmobi to address problems with disparate data storage and querying across their Hadoop and SQL data warehouses. Grill provides a single interface and catalog to allow both ad-hoc and canned queries to run interactively or in batch mode over billions of records. It uses a pluggable execution engine architecture to optimize query costs and allows queries to span multiple storage systems like Hadoop, HBase and SQL data stores.