[jira] [Created] (KAFKA-9335) java.lang.IllegalArgumentException: Number of partitions must be at least 1.

["Nitay Kufert (Jira)" <ji...@apache.org>]

Nitay Kufert created KAFKA-9335:
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             Summary: java.lang.IllegalArgumentException: Number of partitions must be at least 1.
                 Key: KAFKA-9335
                 URL: https://issues.apache.org/jira/browse/KAFKA-9335
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 2.4.0
            Reporter: Nitay Kufert


Hey,

When trying to upgrade our Kafka streams client to 2.4.0 (from 2.3.1) we encountered the following exception: 
{code:java}
java.lang.IllegalArgumentException: Number of partitions must be at least 1.
{code}
It's important to notice that the exact same code works just fine at 2.3.1.

 

I have created a "toy" example which reproduced this exception:

[https://gist.github.com/nitayk/50da33b7bcce19ad0a7f8244d309cb8f]

and I would love to get some insight regarding why its happening / ways to get around it

 

Thanks



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