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https://issues.apache.org/jira/browse/NIFI-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16292410#comment-16292410
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ASF GitHub Bot commented on NIFI-4629:
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GitHub user mgaido91 opened a pull request:
https://github.com/apache/nifi/pull/2345
NIFI-4629: Put flowfiles without the grouping attribute in the default group
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You can merge this pull request into a Git repository by running:
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Alternatively you can review and apply these changes as the patch at:
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To close this pull request, make a commit to your master/trunk branch
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This closes #2345
----
commit 96706c5a48045c967c26fb042559db6466f3681b
Author: Marco Gaido <[email protected]>
Date: 2017-12-15T11:59:16Z
NIFI-4629: Put flowfiles without the grouping attribute in the default group
----
> Non-existing attribute in ControlRate configuration causes
> NullPointerException
> -------------------------------------------------------------------------------
>
> Key: NIFI-4629
> URL: https://issues.apache.org/jira/browse/NIFI-4629
> Project: Apache NiFi
> Issue Type: Bug
> Components: Configuration, Core UI
> Affects Versions: 1.4.0
> Environment: Ubuntu LTS 16.04
> openjdk-8-jre
> Reporter: Fredrik Sko
> Priority: Critical
> Labels: ControlRate, NullPointerException, Processor
> Attachments: ControlRate-NP.xml
>
>
> When using the ControlRate processor, defining the "Grouping Attribute" with
> a missing/non-existing attribute name produces NullPointerException errors.
> Processor configuration:
> {quote}
> Rate Control Criteria: flowfile count
> Maximum rate: 10
> Rate Controlled Attributes: (No value set)
> Time Duration: 1 min
> Grouping Attribute: foobar
> {quote}
> ControlRate with the following configuration when sent a flowfile without the
> attribute {{foobar}} generates the following error:
> bq. ControlRate\[id=dff05b32-015f-1000-db55-5957a9298bab]
> ControlRate\[id=dff05b32-015f-1000-db55-5957a9298bab] failed to process due
> to java.lang.NullPointerException; rolling back session: null
> Additionally, the incoming flowfiles now ends up in some "dead" state where
> I'm unable to even empty the queue.
> A simple template for reproduction is attached.
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