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Posted to issues@beam.apache.org by "Luke Cwik (Jira)" <ji...@apache.org> on 2021/11/18 21:15:00 UTC

[jira] [Created] (BEAM-13287) PubsubLite I/O outputs messages from a different thread

Luke Cwik created BEAM-13287:
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             Summary: PubsubLite I/O outputs messages from a different thread
                 Key: BEAM-13287
                 URL: https://issues.apache.org/jira/browse/BEAM-13287
             Project: Beam
          Issue Type: Bug
          Components: io-java-gcp
            Reporter: Luke Cwik
            Assignee: Daniel Collins


Producing output from another thread will break the assumption that users who use this library may have where they don't need synchronization since methods like startBundle/finishBundle/processElement are all meant to be [accessed from one thread|https://beam.apache.org/documentation/programming-guide/#user-code-thread-compatibility] and will also break similar assumptions in the system (for example counters/monitoring rely on a thread local being set to pass a context object around).



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