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https://issues.apache.org/jira/browse/NIFI-8720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne updated NIFI-8720:
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Status: Patch Available (was: Open)
> SplitRecord can enter infinite loop of Expression Language used to provide
> value of 0 Records per FlowFile
> ----------------------------------------------------------------------------------------------------------
>
> Key: NIFI-8720
> URL: https://issues.apache.org/jira/browse/NIFI-8720
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 1.14.0
>
>
> The SplitRecord processor allows the user to configure the number of Records
> in each 'split' FlowFile. The Property uses a Positive Integer Validator to
> ensure that the value is > 0. However, if Expression Language is used, a
> value of 0 could still be returned. Or a negative value. For example, if the
> {{record.count}} attribute has a value of {{1}} and the property is set to:
> {code:java}
> ${record.count:divide(2)} {code}
> The intent would be to split the incoming FlowFile into two equally sized
> FlowFiles. However, if the input has 1 FlowFile, the result will be a value
> of (integer division) of 1/2 = 0. So the processor enters an infinite loop,
> creating a new file for each FlowFile until an IOException is reached due to
> "Too Many Open Files"
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