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Posted to commits@nifi.apache.org by "marco polo (JIRA)" <ji...@apache.org> on 2017/08/17 13:04:00 UTC

[jira] [Commented] (MINIFI-378) Shutdown can cause ProcessSessionFactory pointer to be deleted during use, causing page fault at shutdown

    [ https://issues.apache.org/jira/browse/MINIFI-378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130357#comment-16130357 ] 

marco polo commented on MINIFI-378:
-----------------------------------

commit 8693fcf432a87439cb6dcfaee9e2469612b8be84
Author: Marc Parisi <ph...@apache.org>
Date:   Thu Aug 17 08:36:03 2017 -0400

    MINIFI-378: Resolve issues with shutdown. Took the approach to call notifyStop at the destructor to avoid larger changes

> Shutdown can cause ProcessSessionFactory pointer to be deleted during use, causing page fault at shutdown
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: MINIFI-378
>                 URL: https://issues.apache.org/jira/browse/MINIFI-378
>             Project: Apache NiFi MiNiFi
>          Issue Type: Bug
>          Components: C++
>            Reporter: marco polo
>            Assignee: marco polo
>            Priority: Blocker
>
> If a thread within a processor uses the process session factory to create a session, the pointer will result in an invalid memory access, causing a seg fault. This is because the raw pointer is passed around and deleted. We should either convert this to a shared pointer or be more mindful of the variable's lifecycle given the complexity of processors will only ever increase. Further, we should not be deleting infrastructure components without ensuring all processors are finished. 



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