wesm commented on pull request #6744: URL: https://github.com/apache/arrow/pull/6744#issuecomment-621299892
@pitrou I think the problem is the global IO thread pool https://github.com/apache/arrow/blob/master/cpp/src/arrow/io/interfaces.cc#L310 So if you read multiple files in parallel, they trample each other a bit when trying to do coalesced reads of their respective parts of the file ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
