[jira] [Commented] (NIFI-3235) EvaluateJsonPath performance improvements

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15764839#comment-15764839 ] 

ASF GitHub Bot commented on NIFI-3235:
--------------------------------------

GitHub user brosander opened a pull request:

    https://github.com/apache/nifi/pull/1346

    NIFI-3235 - EvaluateJsonPath performance improvements

    Thank you for submitting a contribution to Apache NiFi.
    
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    to ensure the following steps have been taken:
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/brosander/nifi NIFI-3235

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/1346.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1346
    
----
commit ae2185709faec01d32d7af363a42bac2345d72b7
Author: Bryan Rosander <br...@apache.org>
Date:   2016-12-20T17:29:15Z

    NIFI-3235 - EvaluateJsonPath performance improvements

----


> 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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