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Posted to jira@kafka.apache.org by "Victor van den Hoven (Jira)" <ji...@apache.org> on 2022/11/18 12:45:00 UTC

[jira] [Updated] (KAFKA-14400) KStream - KStream - LeftJoin() does not call ValueJoiner with null value

     [ https://issues.apache.org/jira/browse/KAFKA-14400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Victor van den Hoven updated KAFKA-14400:
-----------------------------------------
    Description: 
In Kafka-streams 3.1.1 :

When using +JoinWindows.ofTimeDifferenceWithNoGrace(Duration.ofMillis(10000))+

the  KStream {*}leftJoin{*}(KStream otherStream, ValueJoiner {_}joiner{_}, JoinWindows windows) does not seem to call the _joiner_ with null value when join predicate is not satisfied (not expected).

 

When using deprecated +JoinWindows.of(Duration.ofMillis(10000));+

the  KStream {*}leftJoin{*}(KStream otherStream, ValueJoiner {_}joiner{_}, JoinWindows windows) does

call the _joiner_ with null value when join predicate is not satisfied (as expected and documented).

 

Attached you can find two files with TopologyTestDriver Unit test to reproduce.

  was:
In Kafka-streams 3.1.1 :

When using +JoinWindows.ofTimeDifferenceWithNoGrace(Duration.ofMillis(10000))+

the  KStream {*}leftJoin{*}(KStream otherStream, ValueJoiner {_}joiner{_}, JoinWindows windows) does not seem to call the _joiner_ with null value when join predicate is not satisfied.

 

When using deprecated +JoinWindows.of(Duration.ofMillis(10000));+

the  KStream {*}leftJoin{*}(KStream otherStream, ValueJoiner {_}joiner{_}, JoinWindows windows) does

all the _joiner_ with null value when join predicate is not satisfied.

 

Attached you can find two files with TopologyTestDriver Unit test to reproduce.


> KStream - KStream - LeftJoin() does not call ValueJoiner with null value 
> -------------------------------------------------------------------------
>
>                 Key: KAFKA-14400
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14400
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 3.1.1, 3.3.1
>         Environment: Windows PC 
>            Reporter: Victor van den Hoven
>            Priority: Major
>         Attachments: SimpleStreamTopology.java, SimpleStreamTopologyTest.java
>
>
> In Kafka-streams 3.1.1 :
> When using +JoinWindows.ofTimeDifferenceWithNoGrace(Duration.ofMillis(10000))+
> the  KStream {*}leftJoin{*}(KStream otherStream, ValueJoiner {_}joiner{_}, JoinWindows windows) does not seem to call the _joiner_ with null value when join predicate is not satisfied (not expected).
>  
> When using deprecated +JoinWindows.of(Duration.ofMillis(10000));+
> the  KStream {*}leftJoin{*}(KStream otherStream, ValueJoiner {_}joiner{_}, JoinWindows windows) does
> call the _joiner_ with null value when join predicate is not satisfied (as expected and documented).
>  
> Attached you can find two files with TopologyTestDriver Unit test to reproduce.



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