On Wed, Jul 22, 2009 at 02:17:17PM +0200, Joan Balaguer? Valls wrote: > Hello Oleg, > > Five months ago, I sent you the emails below because I was experiencing a > lot of NoHttpResponseException errors when sending requests to a couple of > servers. > > Yesterday night, I installed my app with H4 in one of my clients. This > morning I've had to move back to H3 because of these errors. > > The app consists of a proxy that is sending requests to 3 different > webservices. The app has a different connection pool for each webservice, > and the target servers are also different for each one. > > App -> requests to Webservice1 --> uses pool1 --> send to serversA,B > -> requests to Webservice2 --> uses pool2 --> send to serversC,D > -> requests to Webservice3 --> uses pool3 --> send to serversE,F > >
Joan, Please post a context / wire log of the HTTP session that exhibits the problem http://hc.apache.org/httpcomponents-client/logging.html Please also consider using the latest HttpClient 4.0 RC build: http://people.apache.org/~olegk/httpclient-4.0-rc2/ Mind you it is very unlikely this has anything to do with HttpClient, so expect no miracles. Oleg > The results for webservice1 are: > > Tuesday 22/07: HttpClient 3.1. Total Requests sent : 175.003 > From 00:00 to 23:59 OK Requests : > 174.936 > Error Requests: : > 67 > Wednes. 23/07: HttpClient 4.0 Total Requests sent : 54.851 > From 00:00 to 13:30 OK Requests : > 51.183 > Error Requests: : > 3.668 > > From these 3.668 errors, 3.647 corresponding to NoHttpResponseException. > > > > The error percentages are similar in ws2 and ws3. The target servers for the > ws1 and ws2 are in the same LAN than my app, while target servers for w3 are > on the Internet. > > After moving back to H3, again 0 errors in the last 2 hours. > > Please, just tell me what you need to get more information about this > problem (traces, configurations, ...). Anything you need. > > > Thanks in advance, > > Joan. > > -----Mensaje original----- > De: Oleg Kalnichevski [mailto:ol...@apache.org] > Enviado el: s?bado, 07 de febrero de 2009 14:08 > Para: HttpClient User Discussion > Asunto: Re: NO_HTTP_RESPONSE_EXCEPTION > > sebb wrote: > > On 06/02/2009, Oleg Kalnichevski <ol...@apache.org> wrote: > >> Joan Balaguer? wrote: > >> > >>> Thanks Oleg. It seems strange to me because HttpClient3 (sending > requests > >> to > >>> the same server) never fails. I'll take a look at the code again and > I'll > >>> comment you something else. > >>> > >>> > >> I do not know why the server chokes on packets generated by HttpClient > 4, > >> but this is clearly a server side problem. The server should return a non > >> 2xx response if something is not okay, not just drop the connection. > >> > >> HTTP/1.0 can be a problem or absence of User-Agent header. Whatever. At > any > >> rate the server is broken. > >> > >> > >> > > On Fri, 2009-02-06 at 13:44 +0100, Joan Balaguer? wrote: > > Hello Oleg, > > > > > > This is the log. I sent 10 concurrent requests, and all of them failed > > with HttpNoResponseException. > > > > > > Thanks for you help, > > > > Joan. > > > > There is nothing wrong with packets generated by HttpClient. This appears to > be a server side issue. The target server fails to send any valid response > back and simply closes the connection. > > Oleg > > > > -----Mensaje original----- > > De: Oleg Kalnichevski [mailto:ol...@apache.org] Enviado el: jueves, 05 > > de febrero de 2009 21:44 > > Para: HttpClient User Discussion > > Asunto: Re: NO_HTTP_RESPONSE_EXCEPTION > > > > Joan Balaguer? wrote: > > > Hello, > > > > > > > > > > > > I?m sending requests to one server using HttpClient3 and HttpClient4. > > > HttpClient3 works well, but HttpClient4 fails randomly with an > > > ?HttpNoResponseException?. > > > > > > This is the trace: > > > org.apache.http.NoHttpResponseException: The target server failed to > > respond > > > at > > org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultRespo > > nsePar > > > ser.java:85) > > > at > > org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessagePar > > ser.ja > > > va:174) > > > at > > org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeade > > r(Abst > > > ractHttpClientConnection.java:182) > > > at > > org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeade > > r(Defa > > > ultClientConnection.java:235) > > > at > > org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHea > > der(Ab > > > stractClientConnAdapter.java:259) > > > at > > org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpReq > > uestEx > > > ecutor.java:279) > > > at > > org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecut > > or.jav > > > a:121) > > > at > > org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequ > > estDir > > > ector.java:410) > > > at > > org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpCli > > ent.ja > > > va:555) > > > at > > org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpCli > > ent.ja > > > va:487) > > > at > > org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpCli > > ent.ja > > > va:465) > > > at > > > com.vpfw.proxy.services.http.HttpService.sendRequest(HttpService.jav > > > a:562) > > > > > > > > > Do you know if any other people has had a problem like this? > > > > > > > > > > Not to my best knowledge. > > > > > > Set 'org.apache.http' logging category to DEBUG and post the resulting > > wire / context log to the list. I'll have a look. > > > > Oleg > > > > > > > > Thanks, > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org > For additional commands, e-mail: httpclient-users-h...@hc.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org For additional commands, e-mail: httpclient-users-h...@hc.apache.org
