You are viewing a plain text version of this content. The canonical link for it is here.

Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/03 22:08:13 UTC

[GitHub] [beam] kennknowles opened a new issue, #19065: Beam performance degraded significantly since 2.4

kennknowles opened a new issue, #19065:
URL: https://github.com/apache/beam/issues/19065

   Starting from Beam 2.4 onwards the *InMemoryStateInternals* class in the *beam-runners-core-java* module does an expensive Coder encode/decode operation when copying object state. This has significant impact on performance and pipelines that previously took low minutes do not finish within hours in our case. Based on the discussion on the dev mailing list, the main motivation for this change was to enforce Coder sanity, something that should arguably remain within the realm of the DirectRunner and should not leak into the core layer.
   
   Links to commits that introduced the new behaviour:
    * [https://github.com/apache/beam/commit/32a427c](https://github.com/apache/beam/commit/32a427c)
    * [https://github.com/apache/beam/commit/8151d82](https://github.com/apache/beam/commit/8151d82)
   
    
   
   Additional details and surrounding discussion can be found here:
    * https://lists.apache.org/thread.html/1e329318a4dafe27b9ff304d9460d05d8966e5ceebaf4ebfb948e2b8@%3Cdev.beam.apache.org%3E
   
    
   
   Imported from Jira [BEAM-4750](https://issues.apache.org/jira/browse/BEAM-4750). Original Jira may contain additional context.
   Reported by: janotav.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: github-unsubscribe@beam.apache.org.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org