[jira] [Updated] (NIFI-3249) UpdateAttribute performance improvements

["Bryan Rosander (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-3249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bryan Rosander updated NIFI-3249:
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                before.png

> UpdateAttribute performance improvements
> ----------------------------------------
>
>                 Key: NIFI-3249
>                 URL: https://issues.apache.org/jira/browse/NIFI-3249
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Bryan Rosander
>            Assignee: Bryan Rosander
>            Priority: Minor
>         Attachments: after.png, before.png
>
>
> UpdateAttribute does a lot of work in every onTrigger() that it doesn't need to.
> The default actions map can be built at schedule time so that it doesn't need to be done on every trigger.
> getPropertyValue() can be implemented using ConcurrentMap.computeIfAbsent()
> Update actions can be ignored if there is a delete action for the same attribute.
> Only need to call processSession.updateAttributes() and processSession.deleteAttributes() if there are attributes to update and delete respectively.



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