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Reply-To: "Commons HttpClient Project"
 <commons-httpclient-dev@jakarta.apache.org>
Date: Wed, 8 Oct 2003 19:24:18 -0400
Subject: Re: MultiThreadedHttpConnectionManager question
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From: Michael Becke <becke@u.washington.edu>
To: "Commons HttpClient Project" <commons-httpclient-dev@jakarta.apache.org>
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Hi Andrea,

The MultiThreadedHttpConnectionManager creates connections and keeps=20
them open as long as it can.  The number of connections kept open can=20
be configured using setMaxConnectionsPerHost() and=20
setMaxTotalConnections().  The issue of the sockets in the CLOSE_WAIT=20
state seems to be a side effect of linux.  In particular it seems to=20
keep sockets is this state even after the java.net.Socket has been=20
closed.  I don't think there is much that can be done about it.

Mike

On Wednesday, October 8, 2003, at 08:55 AM, Andrea Fabris wrote:

> Hi everyone!
> I'd like to ask some question about http pool in commons-httpclient.
> As i read, MultiTrheadedHttpConnectionManager is the manger=20
> responsible for
> handling the connection in a multi-thread enviroment.
> I want to use this to create a private HttpClient property in a =
servlet
> class, so each servlet thread can use a different socket to=20
> communicate with
> a remote http server.
> Now i monitored my enviroment to check the connection status and i=20
> found
> that, when i don't use the servlet, some connection from servlet to=20
> remote
> hosts remain up in CLOSE_WAIT state.
> I want to ask you if this beahaviour is correct, because doing so the
> manager uses machine resources even when there are no active requestes=20=

> for
> connection for a long time.
> My enviroment is:
> OS: linux redhat 8.2 with kernel 2.4.18
> JVM: 1.3.1_07-b02
> Tomcat 3.3.1
> Commons-HttpClient 2.0rc1
>
> Thanx for your help
>
> Regards
> Andrea Fabris
> Sytel Reply - Italy
>
>
>
>
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