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https://issues.apache.org/jira/browse/NIFI-11126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann updated NIFI-11126:
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Fix Version/s: 1.20.0
> ListenHTTP doesn't clean temporary files from multipart
> -------------------------------------------------------
>
> Key: NIFI-11126
> URL: https://issues.apache.org/jira/browse/NIFI-11126
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.19.1
> Reporter: Michael W Moser
> Assignee: David Handermann
> Priority: Minor
> Fix For: 1.20.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When a multipart/form-data POST is received by ListenHTTP and the content is
> greater than the Multipart Read Buffer Size property, the content is written
> to a file on disk in "java.io.tmpdir". These files are never removed, even
> after the JVM is shutdown.
> To duplicate:
> * Configure a ListenHTTP processor with Multipart Read Buffer Size property
> with a small value such as 1 KB.
> * Configure an InvokeHTTP processor to POST files to ListenHTTP using
> multipart/form-data (the Request Multipart Form-Data Name property)
> * Configure a GenerateFlowFile processor to send a few files of size > 1 KB
> to InvokeHTTP
> Observe the java.io.tmpdir (typically /tmp on Linux) has files named
> MultiPart3098281529241123731, MultiPart8577800175462397766, etc
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