Exploring New Frontiers: How Apache Flink, Apache Hudi and Presto Power New Insights and Gold Nuggets at Scale

Exploring New Frontiers: How Apache Flink, Apache Hudi and Presto Power New Insights and Gold Nuggets at Scale

Danny Chan & Sagar Sumit, Onehouse – In this talk, attendees will walk away with: – The current challenges of analytics on transactional data systems with data streams at scale – How the Hudi unlocks incremental processing on the lake – How Presto allows ad-hoc queries that support data exploration on Flink data – How you can leverage Flink, Hudi and Presto to build incremental materialized views

Presto Query Analysis for Data Layout Formatting and Query Result Caching – Gurmeet Singh, Uber

Presto Query Analysis for Data Layout Formatting and Query Result Caching – Gurmeet Singh, Uber

In this talk, I will be talking about a microservice that we have built at Uber to be able to analyze Presto queries. The Presto Query Engine does not provide endpoints for query analysis purposes. One has to either execute the query or gather insights from the query explain plan. In this talk, I will talk about 1. The work that we had to do to do the query analysis in a microservice using Presto as a library. 2. Doing predicate analysis on the queries to come up with data formatting recommendations in order to improve query performance. 3. Using the analysis service for query result cache invalidation. The analysis figures out whether the results from a previous run of the query are still valid and can be reused.