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https://issues.apache.org/jira/browse/SAMZA-111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Riccomini reassigned SAMZA-111:
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Assignee: Chris Riccomini
> SystemConsumers is slow with large partition count
> --------------------------------------------------
>
> Key: SAMZA-111
> URL: https://issues.apache.org/jira/browse/SAMZA-111
> Project: Samza
> Issue Type: Bug
> Components: container
> Affects Versions: 0.6.0
> Reporter: Chris Riccomini
> Assignee: Chris Riccomini
>
> We have been seeing very slow processing speed when running a Samza container
> that consumes from 1000s of partitions. We don't see a corresponding slow
> speed when running the same code, but with fewer input partitions (say 8-24).
> The messages per second seems to drop off as more partitions are added to the
> Samza container. One Samza job has ~2500 partitions, and is seeing only 6000
> messages/sec. The same code running with ~9 partitions is seeing 30,000
> messages/sec.
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