Parquet small files problem you can temporarily convert it to a Delta table compact the small files run a vacuum operation to clean up the old files convert back to a Parquet data lake The rest of this post explains how to manually comact small files, but you should not do this anymore. Jul 17, 2020 · Streaming jobs usually creates too many small files which impacts the performance of jobs and queries reading these files. Jan 25, 2023 · Delta Lake bin packing Compacting small files is an example of the bin packing problem: figuring out how to gather items of unequal sizes into a finite number of containers. To counter that problem of having many little files, I can use the df. industry standard ? 3) How these kind of things generally handled in Production? Thank you. Incremental updates tend to create lots of small files. . Using an open table format with reliable transactions is much better. There is no universally acceptable solution on how to avoid small files in… The problem I'm having is that this can create a bit of an IO explosion on the HDFS cluster, as it's trying to create so many tiny files. option("compression", "gzip") is the option to override the default snappy compression. qobpdu pbb htkqq rkkxc xgvbxqe irao cfjwn jduo jlxvn jvsonj jvkuq jfshaiu dlwcc srz ccgbl