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Posted to dev@kafka.apache.org by "Eno Thereska (JIRA)" <ji...@apache.org> on 2016/03/15 12:34:33 UTC
[jira] [Updated] (KAFKA-3401) Message format change on the fly
breaks 0.9 consumer
[ https://issues.apache.org/jira/browse/KAFKA-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eno Thereska updated KAFKA-3401:
--------------------------------
Attachment: 2016-03-15--009.zip
Attaching error logs.
> Message format change on the fly breaks 0.9 consumer
> ----------------------------------------------------
>
> Key: KAFKA-3401
> URL: https://issues.apache.org/jira/browse/KAFKA-3401
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.10.0.0
> Reporter: Eno Thereska
> Assignee: Jiangjie Qin
> Priority: Blocker
> Fix For: 0.10.0.0
>
> Attachments: 2016-03-15--009.zip
>
>
> The new system test as part of KAFKA-3202 reveals a problem when the message format is changed on the fly. When the cluster is using 0.10.x brokers and producers and consumers use version 0.9.0.1 an error happens when the message format is changed on the fly to version 0.9:
> {code}
> Exception: {'ConsoleConsumer-worker-1': Exception('Unexpected message format (expected an integer). Message: null',)}
> {code}
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