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https://issues.apache.org/jira/browse/MINIFI-234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930335#comment-15930335
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marco polo edited comment on MINIFI-234 at 3/17/17 6:31 PM:
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Part of PR 63


was (Author: phrocker):
Part of 63

> Flow Controller getFlowController singleton pattern isn't thread safe
> ---------------------------------------------------------------------
>
>                 Key: MINIFI-234
>                 URL: https://issues.apache.org/jira/browse/MINIFI-234
>             Project: Apache NiFi MiNiFi
>          Issue Type: Bug
>          Components: C++
>            Reporter: marco polo
>            Assignee: marco polo
>            Priority: Critical
>
> This was exposed in testing. When I moved code to FlowControllerFactory I 
> noticed that there was no synchronization to prevent issues. The typical 
> setup doesn't necessarily cause this but if exposed as an API or in testing, 
> this will cause major issues. Testing demonstrates this problem with 
> concurrent tests run by CATCH



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