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https://issues.apache.org/jira/browse/FLINK-19750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17218262#comment-17218262
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Jark Wu commented on FLINK-19750:
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It seems it is a notable bug, because this will lead "avro" format doesn't work
once job is failed. I increased the priority.
> Deserializer is not opened in Kafka consumer when restoring from state
> ----------------------------------------------------------------------
>
> Key: FLINK-19750
> URL: https://issues.apache.org/jira/browse/FLINK-19750
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.11.0, 1.11.1, 1.11.2
> Reporter: Qingsheng Ren
> Priority: Major
>
> When a job using Kafka consumer is recovered from a checkpoint or savepoint,
> the {{open}} method of the record deserializer is not called. This is
> possibly because {{this.deserializer.open}}
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