[jira] [Resolved] (NIFI-241) Framework FingerprintFactory begins processor life cycle but does not finish

["Mark Payne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Payne resolved NIFI-241.
-----------------------------
    Resolution: Fixed

> Framework FingerprintFactory begins processor life cycle but does not finish
> ----------------------------------------------------------------------------
>
>                 Key: NIFI-241
>                 URL: https://issues.apache.org/jira/browse/NIFI-241
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>            Reporter: Michael Moser
>            Assignee: Mark Payne
>             Fix For: 0.0.1
>
>         Attachments: 0001-NIFI-241-Only-call-Processor-methods-with-OnAdded-an.patch
>
>
> The FingerprintFactory will create Processor objects and invoke their initialize() and @OnAdded methods.  If a Processor uses system resources, these methods are where those resources are allocated.  But, those processors are never disposed by calling their @OnRemoved or @OnShutdown methods.  This may result in system resource leaks, depending on how processors are implemented.
> To reproduce, add a processor to the NiFi graph and restart NiFi.  Note that initialize() and @OnAdded is called at least twice (I observed 3 times) as NiFi starts.  The getIdentifier() is different for each invocation.  Shutdown NiFi and observe that @OnShutdown is called once.



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