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https://issues.apache.org/jira/browse/HTTPCORE-740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17725885#comment-17725885
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ASF subversion and git services commented on HTTPCORE-740:
----------------------------------------------------------

Commit fd3984d4384b6a4d1c41417f33e83bc43c4a9378 in httpcomponents-core's branch 
refs/heads/4.4.x from Arunan Sugunakumar
[ https://gitbox.apache.org/repos/asf?p=httpcomponents-core.git;h=fd3984d43 ]

HTTPCORE-740: Introduce Read interest during connection close for graceful 
closure


> Connection resets during timeouts
> ---------------------------------
>
>                 Key: HTTPCORE-740
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-740
>             Project: HttpComponents HttpCore
>          Issue Type: Bug
>          Components: HttpCore NIO
>    Affects Versions: 4.4.16
>            Reporter: Arunan Sugunakumar
>            Priority: Major
>         Attachments: HttpNIOTestServer-740.zip, Screenshot 2023-04-18 at 
> 07.53.12.png, Screenshot 2023-04-18 at 13.43.02.png, Screenshot 2023-04-18 at 
> 13.44.01.png, Screenshot 2023-04-18 at 13.45.10.png
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> We observed an issue where with a httpcore-nio server timeout scenario, the 
> server sends a FINACK to the client and if the client sends a close_notify 
> alert, the server is immediately sending a RESET and closing the connection. 
> Ideally, the server should also send a close_notify and terminate the 
> connection gracefully. This issue is observed with only the clients which 
> send close_notify for a server FINACK. The below attached is a TCP capture 
> during the timeout scenario (server port: 8253).  The server uses the latest 
> 4.4.16 httpcore-nio library.
> !Screenshot 2023-04-18 at 07.53.12.png|width=1466,height=150!
> Is there any way to avoid this scenario and send a close_notify from the 
> server as well to terminate the connection gracefully? 
> PS: I am currently working on a simple reproducer to attach here, and I'll 
> attach it as soon as possible. 



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