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From "Geir Harald Hansen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCORE-272) AsyncNHttpServiceHandler does not react when long polling clients disconnect
Date Sun, 04 Sep 2011 01:45:09 GMT
AsyncNHttpServiceHandler does not react when long polling clients disconnect
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                 Key: HTTPCORE-272
                 URL: https://issues.apache.org/jira/browse/HTTPCORE-272
             Project: HttpComponents HttpCore
          Issue Type: Bug
          Components: HttpCore NIO
    Affects Versions: 4.1.3
            Reporter: Geir Harald Hansen
            Priority: Minor


When using NHttpRequestHandler and in its handle() method storing the NHttpResponseTrigger
and HttpResponse for later, to implement long polling, AsyncNHttpServiceHandler does not react
when clients disconnect. It does react (its close() method is invoked) if other connections
are closed, though. Its close() method is also called later when trying to write to the connection.

Order of events:
1. NHttpRequestHandler.handle() invoked, trigger and response stored
2. Client disconnects - connection goes to CLOSE_WAIT
3. Connection goes out of CLOSE_WAIT and disappears
4. After a few minutes I try to use the NHttpResponseTrigger to send a response
5. Now AsyncNHttpServiceHandler reacts and tells me the connection has closed

It would be useful if AsyncNHttpServiceHandler was told of closed connections immediately
so resources are not wasted preparing data for clients that are no longer there.


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