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From Oleg Kalnichevski <ol...@apache.org>
Subject Re: ConnectException not handled in DefaultHttpMethodRetryHandler
Date Tue, 28 Oct 2008 20:07:46 GMT
On Mon, 2008-10-27 at 15:18 +0100, Jaroslav Bielcik wrote:
> Hi,
> 
> i am using commons-httpclient.3.0.1 and I am sending some requests
> through https protocol. I have a problem with a long creation of
> connection if ip address of remote service is not existing. I think
> problem is in the situation when https connection is not created and
> ConnectException is thrown after connection timeout. This exception is
> catched in HttpMethodDirector.java in method executeWithRetry. Then
> the DefaultHttpMethodRetryHandler is called to recognize whether
> connection creation will be repeated or not.
> I think, that special handling for ConnectException is missing in
> retryMethod of DefaultHttpMethodRetryHandler, because exception is not
> recognized and connetions are created again.
> On the other hand, ConnectTimeoutException is thrown after connection
> timeout for HTTP. This exception is handled in
> DefaultHttpMethodRetryHandler and call is stopped.
> 
> These lines of code handle ConnectTimeoutException in retryMethod of
> DefaultHttpMethodRetryHandler:
> if (exception instanceof InterruptedIOException) {
>             // Timeout
>             return false;
>         }
> 
> Probably this is missing for ConnectException:
> if (exception instanceof InterruptedIOException || exception
> instanceof ConnectException) {
>             // Timeout
>             return false;
>         }
> 
> Or is this problem handled in next versions? (I tried v3.1 and same problem)
> 
> Thanks,
> Jaro
> 

Jaroslav,

Feel free to open a bug in JIRA for this problem. It will get fixed in
HttpClient 4.0. To work this problem around for HttpClient 3.x simply
provide a custom implementation of HttpMethodRetryHandler

Hope this helps

Oleg


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