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From "Alan Silva (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HTTPCLIENT-1655) HttpClient 4.4.1 sends RST instead of proper FIN ACK sequence when using non-persistance
Date Wed, 03 Jun 2015 18:35:38 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-1655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Silva updated HTTPCLIENT-1655:
-----------------------------------
    Summary: HttpClient 4.4.1 sends RST instead of proper FIN ACK sequence when using non-persistance
 (was: HttpClient sends RST instead of proper FIN ACK sequence when using non-persistance)

> HttpClient 4.4.1 sends RST instead of proper FIN ACK sequence when using non-persistance
> ----------------------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1655
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1655
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.4.1
>            Reporter: Alan Silva
>
> I'm seeing an interesting behavior with HttpClient 4.4.1 GA (latest release as of the
writing of this issue) when trying to make http requests with no keep-alive.
> First, let me post my code for the case in which I try to request using keep-alive.
> <Placeholder for keepalive code attachment link>
> With the code above, everything works great. All my requests are done one the same connection
and we get a nice graceful close with a couple FIN ACKs at the end. The capture is here:
> <Placeholder for keepalive capture attachment link>
> However, when I try to do the same thing without using keepalive (I set "Connection:
close" in the httpclient and make sure I call close on the httpclient as well at the end of
each request), I see I the client send a reset (RST) signal to the server at the end of the
connection.
> The code for the non keepalive test is here:
> <Placeholder for no keepalive code attachment link>
> And its capture is here:
> <Placeholder for no keepalive capture attachment link>
> I don't understand why the test with non persistent connections isn't gracefully closing
the connection as it does with the persistent use case by sending a FIN,ACK to the server.
It instead chooses to send a RST. Am I doing something wrong?
> I tried the same test for no keep-alive with our legacy code using the now deprecated
"commons-httpclient-3.1.jar" library. I see a proper connection close there.
> <Placeholder for no keepalive capture attachment  for old httpclient link>



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