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  1. Categories >> Software >> Big Data >> Hadoop >> Apache Impala
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What are the main features of impala?

Question Posted / Siddharth Kumar Srivastava

Answer Posted / Siddharth Kumar Srivastava

Impala is an open-source Massive Parallel Processing (MPP) SQL query engine designed for interactivity on Apache Hadoop. Its main features include: n1. Direct SQL Querying: Impala allows users to run SQL queries directly against data stored in HDFS without the need for MapReduce jobs.n2. Low-Latency Query Execution: Impala provides fast query response times, making it suitable for interactive analytics.n3. Integration with Hive: Impala can be used as a standalone service or integrated with Apache Hive, enabling users to run queries written in HiveQL.n4. Scalability: Impala is highly scalable and can handle petabyte-scale data.n5. Support for user-defined functions (UDFs) and subqueries.

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