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Posted to commits@samza.apache.org by GitBox <gi...@apache.org> on 2020/05/20 23:13:44 UTC

[GitHub] [samza] mynameborat commented on pull request #1292: SAMZA-2469: Fix out of order events throwing Duplicate key registration with same timer exception

mynameborat commented on pull request #1292:
URL: https://github.com/apache/samza/pull/1292#issuecomment-631785930


   @kathulasandeep Sorry for not getting back earlier. The problem outlined is fixed as part of https://issues.apache.org/jira/browse/SAMZA-2519. Making the timer API callbacks multi-valued doesn't align with timer contracts on Beam and other APIs. To be consistent with semantics of the Timer API (Beam, Samza) and the semantics  of timers themselves across runners, we fixed this issue to cancel the previously registered callback and overwrite it with the new callback provided previous callback can be successfully unregistered. 


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