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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCORE-378) AbstractConnPool should perform expired entries clean up outside of lock
Date Thu, 24 Apr 2014 13:52:14 GMT

    [ https://issues.apache.org/jira/browse/HTTPCORE-378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13979732#comment-13979732

Oleg Kalnichevski commented on HTTPCORE-378:


It should be a big problem to collect all expired connections and close them out outside the
pool lock. I am however very uncomfortable with the idea of using a backgroud thread to do
the latter. 

Taking into account that HTTPCORE-377 and HTTPCLIENT-1497 have been resolved what would you
like us to do about this issue?


> AbstractConnPool should perform expired entries clean up outside of lock
> ------------------------------------------------------------------------
>                 Key: HTTPCORE-378
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-378
>             Project: HttpComponents HttpCore
>          Issue Type: Bug
>          Components: HttpCore
>    Affects Versions: 4.3.2
>            Reporter: Dmitry Potapov
>            Priority: Trivial
> Currently expired entries are closed at AbstractConnPool.getPoolEntryBlocking:230. If
connections have non-zero SO_LINGER enabled this will cause other threads to wait up to SO_LINGER
> Unfortunately same reentrant lock is already held by PoolEntryFuture.get(), so list of
pool entries to be closed must be accumulated but some external queue and processed by additional
> There is workaround for this issue for http-clients: apply patches from HTTPCORE-377
and HTTPCLIENT-1497 and set SocketConfig.setSoLinger(0).
> Since this issue has workaround, I suggest to consider this issue as very low priority

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