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From "Geir Harald Hansen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCORE-289) Cancellable#cancel() not invoked when network connection dies
Date Sun, 08 Jan 2012 21:20:39 GMT

    [ https://issues.apache.org/jira/browse/HTTPCORE-289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182294#comment-13182294
] 

Geir Harald Hansen commented on HTTPCORE-289:
---------------------------------------------

IOEventDispatch#disconnected() doesn't get fired when the connection is lost. Only if I eventually
try to send a response, which fails because the connection is long gone.

I will try the latest SVN snapshot and see if I can come up with a minimal example.

                
> Cancellable#cancel() not invoked when network connection dies
> -------------------------------------------------------------
>
>                 Key: HTTPCORE-289
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-289
>             Project: HttpComponents HttpCore
>          Issue Type: Bug
>          Components: HttpCore NIO
>    Affects Versions: 4.2-alpha2
>            Reporter: Geir Harald Hansen
>
> I am rewriting my software to use the new API that comes with 4.2-alpha2. Returning a
Cancellable from HttpAsyncRequestHandler#handle() seems like a good idea for long running
requests like long polling. But I don't ever see Cancellable#cancel() being called.
> I telnet into my server and type the necessary HTTP to start a long running request.
A Cancellable is created and returned from handle(). Then I kill the telnet process, thereby
killing the connection. I expect cancel() to be invoked in the connection's Cancellable at
this point, but nothing happens. cancel() is not invoked in my Cancellable, and there are
no calls to HttpAsyncServiceHandler#closed(), HttpAsyncServiceHandler#exception() or DefaultServerIODispatch#onClosed()
either.

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