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https://issues.apache.org/jira/browse/IGNITE-18992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17724198#comment-17724198
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Ilya Shishkov commented on IGNITE-18992:
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Fixed in IGNITE-19369
> CDC: Use single partition topic for metadata updates
> -----------------------------------------------------
>
> Key: IGNITE-18992
> URL: https://issues.apache.org/jira/browse/IGNITE-18992
> Project: Ignite
> Issue Type: Task
> Components: extensions
> Reporter: Ilya Shishkov
> Priority: Major
> Labels: IEP-59, ise
>
> In order to read data with guaranteed order, metadata topic must have only
> one partition. To achieve this we should:
> * Write binary types and marshaller mappings only to a single partition in
> {{IgniteToKafkaCdcStreamer#onMappings}} and {{#onTypes}}.
> * Print warnings into logs, when topic has more than one partition.
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