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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/03 16:20:16 UTC

[GitHub] [beam] kennknowles opened a new issue, #18090: Enable caching of side-input dependent computations

kennknowles opened a new issue, #18090:
URL: https://github.com/apache/beam/issues/18090

   Sometimes the kind of computations one wants to perform in startBundle depend on side inputs (and, implicitly, the window). For example, one might want to initialize a (non-serializable) stateful object. In particular, this leads to users incorrectly (in the case of triggered or non-globally-windowed side inputs) memoizing this computation in the first processElement call. 
   
   One option would be to fold this into a customizable ViewFn. 
   
   Imported from Jira [BEAM-1002](https://issues.apache.org/jira/browse/BEAM-1002). Original Jira may contain additional context.
   Reported by: robertwb.


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