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

Posted to issues@beam.apache.org by "Neil Kolban (JIRA)" <ji...@apache.org> on 2019/04/27 04:55:00 UTC

[jira] [Created] (BEAM-7167) Unable to cancel a DoFn Timer

Neil Kolban created BEAM-7167:
---------------------------------

             Summary: Unable to cancel a DoFn Timer
                 Key: BEAM-7167
                 URL: https://issues.apache.org/jira/browse/BEAM-7167
             Project: Beam
          Issue Type: Bug
          Components: beam-model
    Affects Versions: 2.12.0
            Reporter: Neil Kolban


The following was raised on [Stackoverflow|[https://stackoverflow.com/questions/55875832/how-to-cancel-unset-a-dofn-defined-timer]]:

 

Having read [Timely (and Stateful) Processing with Apache Beam|https://beam.apache.org/blog/2017/08/28/timely-processing.html] and looked at the JavaDoc for a [Timer|https://beam.apache.org/releases/javadoc/2.12.0/org/apache/beam/sdk/state/Timer.html], I have successfully setup a timer to be fired. However, I am missing how to request that a timer be cancelled before it has fired. Is this a semantic that is possible / allowable in Beam architecture?

My back-story is that I wish to register a timer to fire a callback if something has not occurred ... but if it HAS occurred prior to the timer firing, then I wish to cancel the timer from being fired.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)