Parth Chandra commented on DRILL-4800:

Submitted PR 611: https://github.com/apache/drill/pull/611
[~jaltekruse] Would you like to take a look?
Also added some documentation here on the configurable options here: 
I'll post some performance number in the next couple of days.

> 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
>            Assignee: 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. 

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