[jira] [Assigned] (KAFKA-6434) Kafka-consumer-groups.sh reset-offsets does not work properly for not existing group

["Vahid Hashemian (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-6434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vahid Hashemian reassigned KAFKA-6434:
--------------------------------------

    Assignee: Vahid Hashemian

> Kafka-consumer-groups.sh reset-offsets does not work properly for not existing group
> ------------------------------------------------------------------------------------
>
>                 Key: KAFKA-6434
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6434
>             Project: Kafka
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 0.11.0.2
>            Reporter: George Smith
>            Assignee: Vahid Hashemian
>
> Our usecase: We are migrating Spark streaming app into Kafka streaming. We want to continue processing from the last processed offsets of the Spark streaming app. Therefore we want to define new consumer group (application id) with given offsets. The new app was not launched yet (we don't want to make side effects of processing into db) -> new consumer group does not exist.
> I was happy to see the updated  Kafka-consumer-groups.sh supports reset-offsets method. Unfortunately it seems it's not working as expected. 
> {code}
> kafka-consumer-groups.sh --reset-offsets --bootstrap-server localhost:9092 --topic testTopic:0 --group testGROUP --to-offset 10
> Note: This will only show information about consumers that use the Java consumer API (non-ZooKeeper-based consumers).
> TOPIC                          PARTITION  NEW-OFFSET
> testTopic                      0          10
> {code}
> Now I want to check offsets for the group:
> {code}
> kafka-consumer-groups.sh --describe --bootstrap-server localhost:9092 --group testGROUP
> Error: Consumer group 'testGROUP' does not exist.
> {code}
> That's strange, isn't it?
> On the other side when I use kafka-streams-application-reset.sh - the group is obviously created - unfortunately this tool does not support given offsets for partitions (only the beginning is supported) + it does not support secured Kafka connection...



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