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https://issues.apache.org/jira/browse/NIFI-2525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15432132#comment-15432132
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Joseph Witt commented on NIFI-2525:
-----------------------------------
nice Koji! Let's def have this on the 1.0 fix list.
> HTTP Site-to-Site fails with java.nio.channels.AsynchronousCloseException
> when sending through proxy that requires authentication
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-2525
> URL: https://issues.apache.org/jira/browse/NIFI-2525
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.0.0
> Reporter: Koji Kawamura
> Fix For: 1.0.0
>
>
> Pulling data using Remote Process Group from output port works.
> However, pushing data using Remote Process Group to input port fails with
> AsynchronousCloseException.
> A RPG sends data via POST, then a proxy server returns 407: proxy auth
> required. After this, the RPG should resend the request with credential, but
> the data channel is already closed.
> Currently, it uses chunked encoding so that it can stream data to send.
> Sending actual data twice won't be efficient. We need to do the
> authentication before start reading flow-file stream.
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