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https://issues.apache.org/jira/browse/HTTPCORE-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12472446
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Steffen Pingel commented on HTTPCORE-45:
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Yes, I certainly agree that queuing is the appropriate measure to fix this.
I wanted to share the patch though in case someone else running into this
problem needs a work around. Sorry for not pointing that out.
> Pipelined requests cause HttpException
> --------------------------------------
>
> Key: HTTPCORE-45
> URL: https://issues.apache.org/jira/browse/HTTPCORE-45
> Project: HttpComponents Core
> Issue Type: Bug
> Components: HttpCore NIO
> Reporter: Steffen Pingel
> Fix For: 4.0-alpha4
>
> Attachments: httpcomponents-nio-pipelining-fix.txt
>
>
> I have a simple server implementation that uses DefaultServerIOEventDispatch
> and BufferingHttpServiceHandler. Pipelined requests can cause an exception
> when DefaultNHttpServerConnection receives another request while still
> processing the response to a previous request:
> org.apache.http.HttpException: Response already submitted
> at
> org.apache.http.impl.nio.DefaultNHttpServerConnection.submitResponse(DefaultNHttpServerConnection.java:162)
> at
> org.apache.http.nio.protocol.BufferingHttpServiceHandler.commitResponse(BufferingHttpServiceHandler.java:369)
> at
> org.apache.http.nio.protocol.BufferingHttpServiceHandler.processRequest(BufferingHttpServiceHandler.java:358)
> at
> org.apache.http.nio.protocol.BufferingHttpServiceHandler.requestReceived(BufferingHttpServiceHandler.java:167)
> at
> org.apache.http.impl.nio.DefaultNHttpServerConnection.consumeInput(DefaultNHttpServerConnection.java:97)
> at
> org.apache.http.impl.nio.DefaultServerIOEventDispatch.inputReady(DefaultServerIOEventDispatch.java:77)
> [...]
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