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Posted to issues@beam.apache.org by "Ismaël Mejía (Jira)" <ji...@apache.org> on 2021/05/12 15:40:00 UTC

[jira] [Created] (BEAM-12328) Conversion from Avro GenericRecords to Beam Rows takes too much time

Ismaël Mejía created BEAM-12328:
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             Summary: Conversion from Avro GenericRecords to Beam Rows takes too much time
                 Key: BEAM-12328
                 URL: https://issues.apache.org/jira/browse/BEAM-12328
             Project: Beam
          Issue Type: Improvement
          Components: dsl-sql, sdk-java-core
            Reporter: Ismaël Mejía


While running TPC-DS SQL query 3 on Dataflow with a input dataset of 1TB I noticed the performancew was not good compared with a native version implemented with Raw GenericRecords.

I enabled profiling and noticed that the performance of the Convert transform that converts Avro GenericRecords into Beam Rows is taking too much time, specially for those records that are relatively simple (not nested recordes / logical types or anything complex).

There is definitely something odd that can be improved in this transformation.



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