Mark Payne created NIFI-8720:
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Summary: 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
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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