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Parth Chandra commented on DRILL-4800: -------------------------------------- Been working on this in the background, collecting data on the parquet reader. Here's a summary and a proposal - https://github.com/parthchandra/drill/wiki/Parquet-file-reading-performance-improvement/_edit Also, the same proposal in a Google doc so folks can comment (https://docs.google.com/document/d/1FK2LWlazgSLWa_5_WDyt52lYATu8m6UWaWhr591R3ZI/edit?usp=sharing > Improve parquet reader performance > ---------------------------------- > > Key: DRILL-4800 > URL: https://issues.apache.org/jira/browse/DRILL-4800 > Project: Apache Drill > Issue Type: Improvement > Reporter: Parth Chandra > > Reported by a user in the field - > We're generally getting read speeds of about 100-150 MB/s/node on PARQUET > scan operator. This seems a little low given the number of drives on the node > - 24. We're looking for options we can improve the performance of this > operator as most of our queries are I/O bound. -- This message was sent by Atlassian JIRA (v6.3.4#6332)