I guess the problem is really mine. I was somewhat expecting the connection
to be released after it gets a "connection: close".
/**
* A test that illustrates the problem with connections not being
recovered from a "Connection: close" response.
*/
public void testConnectionPool()
throws IOException, HttpException
{
final MultiThreadedHttpConnectionManager manager = new
MultiThreadedHttpConnectionManager();
HttpClient httpClient = new HttpClient(manager);
httpClient.getHostConfiguration().setHost("www.slashdot.org", 80,
"http");
httpClient.setHttpConnectionFactoryTimeout(2000); // wait up to 2
seconds when getting a HttpConnection
for (int i = 0; i < 30; i++) {
HttpMethod method = new
GetMethod("http://www.slashdot.org/notfound";);
int res = httpClient.executeMethod(method);
// System.gc();
// method.releaseConnection();
}
}
Uncommenting either of the last two lines makes the problem go away...
----- Original Message -----
From: "Michael Becke" <[EMAIL PROTECTED]>
To: "Commons HttpClient Project" <[EMAIL PROTECTED]>
Sent: Sunday, February 02, 2003 6:18 AM
Subject: Re: Running out of connections
> Hello Simon,
>
> Sorry to be replying so late. Connections are released when:
>
> 1) the response is fully read
> 2) the connection is manually released via
> HttpMethod.releaseConnection() or HttpConnection.releaseConnection()
> 3) the garbage collector runs and reclaims any connections that are no
> longer being used
>
> The most reliable way is to manually release the connection after use.
> This goes for successful or unsuccessful requests. Can you send a
> sample of the code you are using that causes this problem?
>
> Mike
>
> On Wednesday, January 29, 2003, at 09:04 PM, Simon Roberts wrote:
>
> > Gidday,
> >
> > With the current CVS version, I seem to be having a problem where I
> > run out of connections to a server. It happens if I do a bunch of
> > HTTP operations that fail (404, as it happens) and the reply include a
> > "Connection: close". If no garbage-collect happens then the
> > connections are not freed!
> >
> > Shouldn't we expire them if we're running out of connections?
> >
> > Cheers, Simon
>
>
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