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https://issues.apache.org/jira/browse/NIFI-752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14989652#comment-14989652
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Mark Payne commented on NIFI-752:
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[~joewitt] - I'll be honest. If we are reaching 1 billion FlowFiles queued up
on a single node... I think swapping is not the biggest concern :)
> Swapping and out of FlowFiles should be driven by FlowFileQueue, rather than
> in background thread
> -------------------------------------------------------------------------------------------------
>
> Key: NIFI-752
> URL: https://issues.apache.org/jira/browse/NIFI-752
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Fix For: 0.4.0
>
>
> As-is, if a huge number of FlowFiles are generated quickly enough, the JVM
> heap can fill before FlowFiles are swapped in. Conversely, if FlowFiles are
> swapped out, are NiFi is able to work those FlowFiles off, it ends up
> pausing, waiting for more FlowFiles to be swapped in. If the queue itself has
> control of this, these issues will both be alleviated.
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