Dandandan commented on PR #20916: URL: https://github.com/apache/datafusion/pull/20916#issuecomment-4067152483
Ok, in some cases it seems to actually improve performance removing the prefetching. My understanding is that it might be caused by that currently multiple partitions might request footers / index of the same file (before caching it), which will be amplified by doing more prefetching. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
