At Comcast, data is used in a data mesh ecosystem, with a vision where users can discover data and request data through a self-service platform. With federation, various tools, and the ability to create, read, and write data with different platforms, it’s a full-blown data mesh. So how do you build that? With Trino, of course, and with the power of Hive views. Tune into the 10-minute lightning talk that Alejandro gave at Trino Fest to learn more about how Comcast pulled it off.
With various different storage systems, like S3 and MinIO, and users that want to be able to use a variety of data platforms, including Trino, but also Databricks and Spark, Comcast needed something to sit between the data and those platforms. The solution was the Hive CLI and Hive views, which could read from all their various forms of storage, and which could be read from all the user-facing query engines and data platforms with no issues.
By centralizing data, there was also the upside of easily integrating with Privacera, which allowed for privacy policies to be implemented without much issue. Users could request access to the data within the Hive views, and data owners could approve or reject access as appropriate. Because of the centralization, it was easy to go very fine-grained with data access rules, allowing for access control as specific as column-level.
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