Hi, Got some Tcpdump ! What i can see is that everytime when we got the issue, our httpd server got an RST from the tomcat server. Does someone have a clue on what's happening?
104 15:17:51.887648 X.X.X.X X.X.X.X TCP 551 50300 > 45371 [PSH, ACK] Seq=459 Ack=1518 Win=49232 Len=485 TSval=702118294 TSecr=3875125094 105 15:17:51.927192 X.X.X.X X.X.X.X TCP 66 45371 > 50300 [ACK] Seq=1518 Ack=944 Win=16768 Len=0 TSval=3875125141 TSecr=702118294 106 15:17:57.705063 X.X.X.X X.X.X.X TCP 66 45349 > 50300 [FIN, ACK] Seq=1 Ack=1 Win=152 Len=0 TSval=3875130918 TSecr=701960866 107 15:17:57.705128 X.X.X.X X.X.X.X TCP 74 45372 > 50300 [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=3875130918 TSecr=0 WS=128 *108 15:17:57.705236 X.X.X.X X.X.X.X TCP 60 50300 > 45349 [RST] Seq=1 Win=0 Len=0* 109 15:17:57.705314 X.X.X.X X.X.X.X TCP 78 50300 > 45372 [SYN, ACK] Seq=0 Ack=1 Win=49232 Len=0 TSval=702118876 TSecr=3875130918 MSS=1460 WS=1 SACK_PERM=1 On 25 July 2012 11:29, ivan Gouin <gouin.i...@gmail.com> wrote: > Hi rainer, > For case 70007, the timeout expired, in access log , i've got a 300 > second timeout > In the same time, tomcat's access log haven't any trace of the > corresponding request. > > For these request, response time is about 30-100ms > > Apache is Apache/2.2.17 > Tomcat is 6.0.26 (jdk1.6.0_24) > > I'm preparing a tcpdump on each side to see if i can see something > received by tomcat . > > Ivan > > > On 25 July 2012 11:02, Rainer Jung <rainer.j...@kippdata.de> wrote: > >> On 25.07.2012 09:52, ivan Gouin wrote: >> >>> Hi, >>> >>> I've got those error in my httpd error log: >>> >>> [Wed Jul 25 08:10:55 2012] [error] (70014)End of file found: proxy: >>> prefetch request body failed to *.*.*.*:50300 (...) from ..... () >>> [Wed Jul 25 00:13:18 2012] [error] (70007)The timeout specified has >>> expired: proxy: prefetch request body failed to to *.*.*.*:50300 (...) >>> from ..... () >>> >> >> Maybe the Timeout has expired? >> >> >> Those error occurs with client accessing a tomcat WS through mod_proxy . >>> >>> Not all the requests are rejected for today, 416 out of 2194 got one of >>> these errors. >>> >>> don't really know how to proceed to debug this error. >>> thanks for your help >>> >> >> Add %D to your Tomcat and Apache Access Logs. It is the response time in >> milloiseconds (Tomcat) resp. microseconds (Apache). If the number is e.g. >> slightly above 60000000 for Apache and you had set a timeout of 60 seconds, >> then you know the problem is that the response takes to long. You can then >> check Tomcats Access Log to see how long it actually took. If it really >> takes to long in Tomcat, then take thread dumps to analyze and switch to >> the Tomcat users mailing list. >> >> HTH. >> >> Rainer >> >> >> ------------------------------**------------------------------**--------- >> To unsubscribe, e-mail: >> users-unsubscribe@httpd.**apache.org<users-unsubscr...@httpd.apache.org> >> For additional commands, e-mail: users-h...@httpd.apache.org >> >> > > > -- > *Ivan GOUIN** > * > > ***Mob (Suisse**)* : +41 (0)79 941 07 90 > > *Mail* : gouin.i...@gmail.com > > -- *Ivan GOUIN** * ***Mob (Suisse**)* : +41 (0)79 941 07 90 *Mail* : gouin.i...@gmail.com
