alexeykudinkin commented on PR #982:
URL: https://github.com/apache/parquet-mr/pull/982#issuecomment-1377589036

   Totally @shangxinli  
   
   We have running Spark clusters in production _ingesting_ from 100s of Apache 
Hudi tables (using Parquet and Zstd) and writing into other ones. We switched 
from gzip to zstd slightly over a month ago and we started to have OOM issues 
almost immediately. It took us a bit of triaging to zero in on zstd, but now 
we're confident that it's not mis-calibration of our configs but slow-bleeding 
leak of the native memory.
   
   The crux of the problem is very particular type of the job -- one that reads 
a lot of Zstd compressed Parquet (therefore triggering the affected path). 
Other jobs not reading Parquet are not affected.


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