John, Please correct me if I am wrong (which may well be the case) SO_TIMEOUT only affects socket read operations. I thought it had nothing to do with SSL inactivity timeout. But it looks like it might.
There's another way to deal with recoverable exceptions. You can provide a custom implementation of MethodRetryHandler http://jakarta.apache.org/commons/httpclient/apidocs/org/apache/commons/httpclient/MethodRetryHandler.html The default implementation of the MethodRetryHandler is quite conservative. It does not allow the method to be retried if the request has been transmitted in its entirety. http://jakarta.apache.org/commons/httpclient/xref/org/apache/commons/httpclient/DefaultMethodRetryHandler.html#62 Oleg -----Original Message----- From: Jesus M. Salvo Jr. [mailto:[EMAIL PROTECTED] Sent: Thursday, May 13, 2004 7:40 To: [EMAIL PROTECTED] Subject: Persistent HTTPS connections Using HttpClient 2.0 JDK 1.4.2_04 on Fedora Is there anything special that I have to do to make use of persistent HTTP(S) connections with HttpClient other than using MultiThreadedHttpConnectionManager ? Basically, what I am doing is the following ( more explanation after the snippet of the source code ): MultiThreadedHttpConnectionManager connectionManager = new MultiThreadedHttpConnectionManager(); connectionManager.setConnectionStaleCheckingEnabled( true ); connectionManager.setMaxConnectionsPerHost( 10 ); connectionManager.setMaxTotalConnections( 100 ); this.httpClient = new HttpClient( connectionManager ); this.httpClient.setConnectionTimeout( 30000 ); this.httpClient.setTimeout( 30000 ); .... and then within a thread, the thread does this: String content; HttpMethod method; .... try { method = new PostMethod( connectionURL ); method.setDoAuthentication( true ); method.setRequestHeader( "Content-Type", contentType + "; charset=" + this.outboundEncoding); if( method instanceof PostMethod ) { PostMethod postMethod = (PostMethod) method; postMethod.setRequestBody( content ); } int responseCode = this.httpClient.executeMethod( method ); String response = method.getResponseBodyAsString(); ..... } catch( Exception ex ) {} finally { if( method != null ) method.releaseConnection(); } What I am doing, then, from a JUnit test class, is: 1) Send one HTTP POST to a URL, which works and I get the response. 2) Sleep for 40 seconds ( which is greater than the SO_TIMEOUT of 30 seconds ) 3) Send another HTTP POST to the same URL. What I am seeing with ethereal is that, after 30 seconds of no activity ( no TCP ACKs whatever on the socket ), the web server sends a a TLS alert. So what actually happens is this: 1) Send one HTTP POST to a URL, which works and I get the response. 2) Sleep for 40 seconds ( which is greater than the SO_TIMEOUT of 30 seconds ) 3) Web server sends a TLS alert after 30 seconds of inactivity. Web server sends a TCP FIN, Java sends a TCP ACK _only_ . 4) Wake up from sleep at the 40 second mark, send another HTTP POST to the same URL. 5) Receive a TLS alert instead of a HTTP response. The TLS alert according to JSSE's debug mode is: main, RECV TLSv1 ALERT: warning, close_notify main, called closeInternal(false) main, SEND TLSv1 ALERT: warning, description = close_notify 6) HttpClient throws an HttpRecoverableException, shown below: org.apache.commons.httpclient.HttpRecoverableException: org.apache.commons.httpclient.HttpRecoverableException: Error in parsing the status line from the response: unable to find line starting with "HTTP" Question is, was I correct in initially assuming that MultiThreadedHttpConnectionManager should have "handled" this case ? e.g... .detected that the exception, and retried the HTTP POST by creating a new HTTPS socket ? --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] *************************************************************************************************** The information in this email is confidential and may be legally privileged. Access to this email by anyone other than the intended addressee is unauthorized. If you are not the intended recipient of this message, any review, disclosure, copying, distribution, retention, or any action taken or omitted to be taken in reliance on it is prohibited and may be unlawful. If you are not the intended recipient, please reply to or forward a copy of this message to the sender and delete the message, any attachments, and any copies thereof from your system. *************************************************************************************************** --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
