Fast and Reliable Apache Spark SQL Engine

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Building the next generation Spark SQL engine at speed poses new challenges to both automation and testing. At Databricks, we are implementing a new testing framework for assessing the quality and performance of new developments as they produced. Having more than 1,200 worldwide contributors, Apache Spark follows a rapid pace of development. At this scale, new testing tooling such as random query and data generation, fault injection, longevity stress, and scalability tests are essential to guarantee a reliable and performance Spark later in production. By applying such techniques, we will demonstrate the effectiveness of our testing infrastructure by drilling-down into cases where correctness and performance regressions have been found early. In addition, showing how they have been root-caused and fixed to prevent regressions in production and boosting the continuous delivery of new features.


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About Cheng Lian

Cheng got in touch with Spark since late 2013 and joined Databricks in early 2014 as one of the main developers behind Spark SQL. Now he's a committer of Apache Spark and Apache Parquet. His current areas of interest include databases and programming languages.