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Date: Wed, 04 Apr 2007 07:32:47 +1000
From: William Rose <wrose@zip-it.org>
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To: HttpClient User Discussion <httpclient-user@jakarta.apache.org>
Subject: Re: Too many file descriptors in TIME_WAIT state
References: <BAY138-F20D3D4E1454E178C231D30B0670@phx.gbl>
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Hi there,

IIRC, you should consume all the data from the input stream as well as 
calling releaseConnection().

So put in something like:

  byte[] buffer = new byte[65536];
  int bytes;
  while( (bytes = is.read(buffer)) > 0 )
    ;
between the getResponseBodyAsStream and releaseConnection.

cheers,

Will


Boquan Xie wrote:
>
> Hi,
>
> I am a new user of HttpClient and I am trying to do a performance test 
> which including httpclient requests.
>
> I have serveral threads constantly sending requests and getting 
> responses. In the main thread, I keep a 
> multithreadedhttpconnectionManager and a httpClient. the instance of 
> the httpclient is passed to each thread.
>
>    MultiThreadedHttpConnectionManager connectionMgr = new 
> MultiThreadedHttpConnectionManager();
>    HttpClient hClient = new HttpClient();
>    hClient.getHostConfiguration().setHost("sottamlab1", 9300, "http");
>    hClient.setHttpConnectionManager(connectionMgr);
>
> in each of threads:
>
>   while (true)
>   {
>      PostMethod postMethod = new 
> PostMethod("http://sottamlab1:9300/p2pd/servlet/dispatch");
>
>      postMethod.addRequestHeader("soapaction", "someaction");
>      postMethod.addRequestHeader("Content-Type", "text/xml");
>
>      postMethod.setRequestBody(requestBody);
>      this.hClient.executeMethod(postMethod);
>
>      InputStream is = postMethod.getResponseBodyAsStream();
>
>      postMethod.releaseConnection();
>  }
>
> After a very short time ( < 1 min ), running the program with 3 
> threads, a large number of file descriptors is left at state TIME_WAIT 
> in tcpview. is this normal ? It seems to me that 
> httpclient/multithreadedHttpClientManager didnot reuse the connections 
> for me. Am I missing something in the code ?
>
> if I run the program with 1 thread, the problem of large number of 
> file descriptors in TIME_WAIT state doesnot happen.
>
> Please help !
>
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