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Weston Pace resolved ARROW-15410. --------------------------------- Fix Version/s: 8.0.0 Resolution: Fixed Issue resolved by pull request 12228 [https://github.com/apache/arrow/pull/12228] > [C++][Datasets] Improve memory usage of datasets API when scanning parquet > -------------------------------------------------------------------------- > > Key: ARROW-15410 > URL: https://issues.apache.org/jira/browse/ARROW-15410 > Project: Apache Arrow > Issue Type: Improvement > Components: C++ > Reporter: Weston Pace > Assignee: Weston Pace > Priority: Major > Labels: pull-request-available > Fix For: 8.0.0 > > Time Spent: 4h 20m > Remaining Estimate: 0h > > This is a more targeted fix to improve memory usage when scanning parquet > files. It is related to broader issues like ARROW-14648 but those will > likely take longer to fix. The goal here is to make it possible to scan > large parquet datasets with many files where each file has reasonably sized > row groups (e.g. 1 million rows). Currently we run out of memory scanning a > configuration as simple as: > 21 parquet files > Each parquet file has 10 million rows split into row groups of size 1 million -- This message was sent by Atlassian Jira (v8.20.7#820007)