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https://issues.apache.org/jira/browse/NIFI-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Rosander updated NIFI-3235:
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Attachment: after.png
before.png
After changes the processor uses about 80% of the cpu time to do the same
amount of work (same flow and input data/rate, the per 5 minute differences in
input are due to slight differences in queue state but difference is negligible
(less than 0.01%))
> EvaluateJsonPath performance improvements
> -----------------------------------------
>
> Key: NIFI-3235
> URL: https://issues.apache.org/jira/browse/NIFI-3235
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Bryan Rosander
> Priority: Minor
> Attachments: after.png, before.png
>
>
> EvaluateJsonPath does a lot of work in every onTrigger() that can be done
> when scheduled. This has the effect of making it take more cpu cycles than
> necessary to do its job.
> Initializing the JsonPath objects in a ThreadLocal because they aren't
> thread-safe and getting the properties from the ProcessContext a single time
> in onSchedule() should reduce the amount of CPU time this processor needs to
> perform a given task.
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