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From "Mark Payne (Jira)" <j...@apache.org>
Subject [jira] [Created] (NIFI-6832) Site-to-Site should not create a Content Claim for 0-byte FlowFiles
Date Fri, 01 Nov 2019 19:47:00 GMT
Mark Payne created NIFI-6832:
--------------------------------

             Summary: Site-to-Site should not create a Content Claim for 0-byte FlowFiles
                 Key: NIFI-6832
                 URL: https://issues.apache.org/jira/browse/NIFI-6832
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
            Reporter: Mark Payne
            Assignee: Mark Payne


When FlowFiles are received via Site-to-Site, it creates a FlowFile and then writes the content
from the InputStream to the FlowFile. However, if the FlowFile is 0 bytes, it should avoid
every calling `ProcessSession.write`. Doing so has the overhead of seeking to the appropriate
place on disk to begin writing, but more importantly it ties the FlowFile to the underlying
ResourceClaim. As a result, we have a 0 byte FlowFile that can prevent a (potentially large)
Content Claim from being cleaned up, until the 0 byte FlowFile has been dropped.



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