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https://issues.apache.org/jira/browse/NIFI-2732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Bende resolved NIFI-2732.
-------------------------------
Resolution: Fixed
> ConsumeKafka 0.9 and 0.10 not handling partition reassignment case
> sufficiently
> -------------------------------------------------------------------------------
>
> Key: NIFI-2732
> URL: https://issues.apache.org/jira/browse/NIFI-2732
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Joseph Witt
> Assignee: Joseph Witt
> Priority: Critical
> Fix For: 1.1.0
>
>
> The new ConsumeKafka clients handle the threading model of the consumer api
> correctly. However, they are not yet honoring partition reassignment cases
> sufficiently which means we could have avoidable cases of duplication. By
> registering a partition reassignment listener we can handle it correctly.
> Further, the processor is loading subsequent polls of messages into memory
> rather than writing directly to the process session/disk. We could write
> them to disk and achieve far better performance and efficiency. Early
> testing shows easily achieving 100MB/s sustained per thread on a simple
> laptop setup with defaults which will scale very nicely on a legit installed
> content repository.
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