Reading large parquet file with parquet modular encryption fail about presto

[dieu-nguyen]

I try to testing the file size, it seem like the threshold is 128MB (as my HDFS block size setup), it means that file <=128MB is fine, >128MB is fail.
While file size > 128MB, it stored in multiple blocks in HDFS, will it make the dictionary page not available to the second data block?

[dieu-nguyen]

@shangxinli , please take a look

[dieu-nguyen]

Hi there, any update on this @tdcmeehan ?
Meanwhile, I had done a lot of test, and I found the config that can workaround on this problem. I set this config to true

hive.order-based-execution-enabled=true

Presto read a file in HDFS by creating multiple splits, this process divides the parquet file into multiple parts. If we enable the PME in file, each page become an undivided, because it need the whole data byte into to decrypt data. So I think there is something wrong with the split creating process.

This config make the "hive files become non-splittable", so bypass this splitting process and make every thing work fine.