What is the relationship between Impala and Hadoop?

Impala and Hadoop are both technologies related to big data processing, but they are two distinct tools.

Hadoop is an open-source framework for distributed storage and computing, originally developed by Apache. It consists of the Hadoop Distributed File System (HDFS) and the MapReduce computing framework, allowing for the processing, storage, and analysis of large-scale data.

Impala, developed by Cloudera, is a real-time query engine that allows interactive querying on Hadoop clusters. It supports SQL queries, enabling fast data analysis and processing with faster query speeds than traditional MapReduce.

Therefore, Impala can be used in conjunction with Hadoop to perform real-time querying and analysis of big data on Hadoop clusters. Impala maximizes the storage and computing resources of the Hadoop cluster, providing users with a more efficient data processing solution.