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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/03 23:36:34 UTC

[GitHub] [beam] kennknowles opened a new issue, #19284: Incomplete JobService API Semantics

kennknowles opened a new issue, #19284:
URL: https://github.com/apache/beam/issues/19284

   The JobService API (beam_job_api.proto) allows for the possibility of never seeing messages or states with Get(State|Message)Stream. This is because the  Get(State|Message)Stream calls need to have the job id which can only be obtained from the RunJobResponse. But in order to see all messages/states the streams need to be opened before the job starts.
   
   This is fine in Dataflow as the preparation_id \== job_id, but this is not true in Flink.
   
   Fix is to modify the API to only keep a single id to be used between the preparation/run APIs. 
   
   Consumers of the API will have to be modified to meet the new semantics.
   
   Dev list thread (https://lists.apache.org/thread.html/3ace7585278c0545185fa4bb8d6975283d5c48c097e1bb2c2e18b9a2@%3Cdev.beam.apache.org%3E)
   
    
   
   Imported from Jira [BEAM-6442](https://issues.apache.org/jira/browse/BEAM-6442). Original Jira may contain additional context.
   Reported by: rohdesam.


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