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https://issues.apache.org/jira/browse/NIFI-1624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18055545#comment-18055545
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David Handermann commented on NIFI-1624:
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If the regular expression itself included a maximum limit, such as:
{noformat}
(\w{1024})
{noformat}
then the Max Capture Group Length would be ignored if configured for greater
than 1024, or if less than 1024, it would truncate the captured value.
> ExtractText - Add option to Throw Failure if Text is greater than Capture
> Group
> -------------------------------------------------------------------------------
>
> Key: NIFI-1624
> URL: https://issues.apache.org/jira/browse/NIFI-1624
> Project: Apache NiFi
> Issue Type: Improvement
> Affects Versions: 0.4.1, 1.5.0, 1.6.0, 1.7.0, 1.8.0, 1.9.0
> Reporter: Randy Bovay
> Priority: Major
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> ExtractText allows us to specify the "Maximum Capture Group Length"
> Occasionally I will get a text string that is greater than what I've
> specified.
> In these unexpected situations, I would LIKE to route this to something that
> can handle it, or throw an error so I can look into why this is larger than
> expected.
> The ask is to make the behavior configurable on LengthExceededBehavior. With
> options of 'truncate' or 'failure'.
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