Basically, the tool to process structured data in Hadoop we use Hive. It is a data warehouse infrastructure. Moreover, to summarize Big Data, it resides on top of Hadoop. Also, makes querying and analyzing easy.
However, the Apache Software Foundation took it up, but initially, Hive was developed by Facebook. Further Apache Software Foundation developed it as an open source under the name Apache Hive. Although, many different companies use it. For example, Amazon uses it in Amazon Elastic MapReduce.