[GitHub] [flink] tweise opened a new pull request #9702: [FLINK-14107][kinesis] Erroneous queue selection in record emitter may lead to deadlock

[GitBox <gi...@apache.org>]

tweise opened a new pull request #9702: [FLINK-14107][kinesis] Erroneous queue selection in record emitter may lead to deadlock
URL: https://github.com/apache/flink/pull/9702
 
 
   ## What is the purpose of the change
   
   When the emitter reaches the max timestamp for the current queue, it stops emitting and waits for the max timestamp to advance. Since it simultaneously selects the next queue as new "minimum" queue, it may subsequently deadlock if the previous min queue represents the new global lower bound after the max timestamp advanced. This occurs very infrequently and we were finally able to reproduce.
   
   ## Verifying this change
   
   This change was verified on our internal system and reproduced with the unit test.

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