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https://issues.apache.org/jira/browse/HTTPASYNC-39?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13686573#comment-13686573
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Oleg Kalnichevski commented on HTTPASYNC-39:
--------------------------------------------

This has all the symptoms of a race condition but for the love of God I cannot 
see how there could be a race given synchronized access to all internal 
structures of IOSession.

Is there a chance you could add logging to you app from the contrib package [1] 
and try to reproduce the problem with logging turned on?

Oleg

[1] 
http://svn.apache.org/repos/asf/httpcomponents/contrib/httpcore/branches/4.2.x/src/main/java/org/apache/http/contrib/logging/
                
> SocketTimeoutException occurs too soon
> --------------------------------------
>
>                 Key: HTTPASYNC-39
>                 URL: https://issues.apache.org/jira/browse/HTTPASYNC-39
>             Project: HttpComponents HttpAsyncClient
>          Issue Type: Bug
>    Affects Versions: 4.0-beta3
>            Reporter: Clinton Nielsen
>
> In a highly concurrent environment, where SocketTimeout is set to 30,000 
> milliseconds, we are often seeing a timeoutexception after only 0 or 1 or 2 
> milliseconds has actually passed.
> I get the impression that in the AbstractIOReactor timeoutCheck function, 
> session.getLastAccessTime is being called on the session before the 
> lastAccessTime is set on the session for the current session (ie. the 
> lastAccessTime being retrieved is the time that was set on the session object 
> for the previous http session)

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