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https://issues.apache.org/jira/browse/NIFI-6031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Bende resolved NIFI-6031.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.9.0
> ListenTCP processor does not release connections if client disconnects
> abruptly
> -------------------------------------------------------------------------------
>
> Key: NIFI-6031
> URL: https://issues.apache.org/jira/browse/NIFI-6031
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.5.0
> Reporter: Endre Kovacs
> Assignee: Endre Kovacs
> Priority: Minor
> Fix For: 1.9.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> If a client connected to ListenTCP processor, gets disconnected abruptly:
> (eg.: they disconnected their VPN to NiFi's network), the client-TCP-socket
> on the NiFi node will be seen lingering for an extended amount of time (eg.:
> such socket can linger in established state even after 12 hours after
> disconnection)
> Or till a manual workaround is done: the ListenTCP processor is restarted.
> An ideal fix would be to allow the underlying OS to poll the socket if the
> remote side is still alive, and disconnect it if not.
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