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https://issues.apache.org/jira/browse/APEXMALHAR-2283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15563734#comment-15563734
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Thomas Weise commented on APEXMALHAR-2283:
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The hashCode() assumption isn't documented. It is also not sufficient, there
should be control in the operator itself how the hash code is computed. I think
we should revisit the options for tracking the state.
> Refactor kafka output operator
> ------------------------------
>
> Key: APEXMALHAR-2283
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2283
> Project: Apache Apex Malhar
> Issue Type: Improvement
> Reporter: Siyuan Hua
> Assignee: Siyuan Hua
>
> The abstract kafka output operator needs to be refactored
> 1. Needs to set some mandatory properties on operator level instead of kafka
> property level.
> 2. More document and examples
> 3. Find a standard way to achieve exactly once in both 0.8 and 0.9
> More will be added when working on the ticket
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