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Posted to jira@kafka.apache.org by "Ritika Reddy (Jira)" <ji...@apache.org> on 2026/03/16 19:45:00 UTC

[jira] [Updated] (KAFKA-20322) TransactionMarkerChannelManager has discoverBrokerVersions=false causing UnsupportedVersionException during rolling upgrades

     [ https://issues.apache.org/jira/browse/KAFKA-20322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ritika Reddy updated KAFKA-20322:
---------------------------------
    Description: 
AFFECTED CODE: origin/trunk: core/src/main/scala/kafka/coordinator/transaction/TransactionMarkerChannelManager.scala

ROOT CAUSE: TransactionMarkerChannelManager creates NetworkClient with discoverBrokerVersions=false, which disables API version discovery. Without version discovery, NetworkClient blindly uses the latest API version for all requests. This results in UnsupportedVersionExceptions.

 

 

  was:
AFFECTED CODE: origin/trunk: core/src/main/scala/kafka/coordinator/transaction/TransactionMarkerChannelManager.scala

ROOT CAUSE: TransactionMarkerChannelManager creates NetworkClient with discoverBrokerVersions=false, which disables API version discovery. Without version discovery, NetworkClient blindly uses the latest API version for all requests.


> TransactionMarkerChannelManager has discoverBrokerVersions=false causing UnsupportedVersionException during rolling upgrades
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-20322
>                 URL: https://issues.apache.org/jira/browse/KAFKA-20322
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 4.2.0
>            Reporter: Ritika Reddy
>            Assignee: Ritika Reddy
>            Priority: Major
>             Fix For: 4.2.1
>
>
> AFFECTED CODE: origin/trunk: core/src/main/scala/kafka/coordinator/transaction/TransactionMarkerChannelManager.scala
> ROOT CAUSE: TransactionMarkerChannelManager creates NetworkClient with discoverBrokerVersions=false, which disables API version discovery. Without version discovery, NetworkClient blindly uses the latest API version for all requests. This results in UnsupportedVersionExceptions.
>  
>  



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