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From "Damian Guy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-3898) KStream.leftJoin(...) is missing a Serde for thisVal. This can cause failures after mapValues etc
Date Fri, 24 Jun 2016 07:52:16 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-3898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347928#comment-15347928
] 

Damian Guy commented on KAFKA-3898:
-----------------------------------

Turns out this is not an issue on 0.10.0 - my mistake. It was an issue on trunk because we
now do auto-repartitioning on map etc, so the Serdes need to be passed along. However, on
0.10.0 this doesn't happen and developers are expected to do: 
{code}
streamOne.map((key,value) -> value).through(Serdes.Integer(), Serdes.Integer(),"through-topic")
{code}

Closing

> KStream.leftJoin(...) is missing a Serde for thisVal. This can cause failures after mapValues
etc
> -------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-3898
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3898
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 0.10.0.0
>            Reporter: Damian Guy
>            Assignee: Damian Guy
>             Fix For: 0.10.0.1
>
>




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