On 08.08.2012 16:20, ivan Gouin wrote:
Hi,
Here's more information about my issue:
Here i will call
user : the application who post the request.
apache : the httpd server who receive request from the client and send
them to tomcat
tomcat: the web server tomcat, a Web Service application
Versions
user : Apache CXF client 2.2.9
apache: httpd 2.2.17 (tried a 2.2.22 too)
tomcat: 6.0.26 (jdk1.6.0_24)
Here's the post request send by user ( * are for anonymise)
POST /***/***/ws/v2?test HTTP/1.1
Content-Type: text/xml; charset=UTF-8
SOAPAction: ""
Authorization: Basic Z3ZkMHRhb2FwcDpkbmVlc3cyYQ==
Accept: */*
User-Agent: Apache CXF 2.2.9
Content-Length: 304
Host: ***
Connection: Keep-Alive
<soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/";>************************</soap:Envelope>
Start at 11:56:57
Between 11:56:57.5357 and 11:56:58:4784: 4 request pass OK
Here's the sequence after that : (Time is of tomcat seem too be a little
shifted, user and apache are on the same host)
11:56:58.4817 user : POST request
*11:56:58.459722tomcatTCP55150300 > 41323 [PSH, ACK] Seq=3187 Ack=3818
Win=22400 Len=485 TSval=345704305 TSecr=749474400 (HTTP 200)*
11:56:58.491981apacheTCP55150300 > 41323 [PSH, ACK] Seq=3187 Ack=3818
Win=22400 Len=485 TSval=345704305 TSecr=749474400 (HTTP 200)
11:56:58.492251userHTTP/XML594HTTP/1.1 200 OK
Did this packet contain the full response?
*11:56:58.501457tomcatTCP6641323 > 50300 [ACK] Seq=3818 Ack=3672
Win=15872 Len=0 TSval=749474449 TSecr=345704305*
11:56:58.531503apacheTCP6641323 > 50300 [ACK] Seq=3818 Ack=3672
Win=15872 Len=0 TSval=749474449 TSecr=345704305
11:56:58.585937userTCP6045501 > 80 [ACK] Seq=2893 Ack=3948 Win=49640 Len=0
5 seconds pause
*11:57:03.492499userTCP5480 > 45501 [FIN, ACK] Seq=3948 Ack=2893
Win=16640 Len=0*
KeepAlive Timeout 5 seconds configured for Apache?
11:57:03.494663userTCP6045501 > 80 [ACK] Seq=2893 Ack=3949 Win=49640 Len=0
11:57:08.694657userTCP335[TCP segment of a reassembled PDU]
11:57:08.694703userTCP5480 > 45501 [RST] Seq=3949 Win=0 Len=0
11:57:08.694661userHTTP/XML358POST /*/*/ws/v2?test HTTP/1.1
11:57:08.694763userTCP5480 > 45501 [RST] Seq=3949 Win=0 Len=0
*11:57:18.466178tomcatTCP6650300 > 41323 [FIN, ACK] Seq=3672 Ack=3818
Win=22400 Len=0 TSval=345724311 TSecr=749474449*
11:57:18.498510apacheTCP6650300 > 41323 [FIN, ACK] Seq=3672 Ack=3818
Win=22400 Len=0 TSval=345724311 TSecr=749474449
*11:57:18.508720tomcatTCP6641323 > 50300 [ACK] Seq=3818 Ack=3673
Win=15872 Len=0 TSval=749494456 TSecr=345724311*
11:57:18.538771apacheTCP6641323 > 50300 [ACK] Seq=3818 Ack=3673
Win=15872 Len=0 TSval=749494456 TSecr=345724311
What make me mad is why apache send a FIN/ACK closing the communication??
Is there a time out somewhere?
This seems to happen about 5 second after the last ACK
Or 6 second the opening of the socket ( at 11:56:57.53)
I guess its the Keep Alive Timeout of 5 seconds configured for Apache.
Check configuration.
This should not produce a problem in itself. A client that observes a
closed connection when trying to send a follow on request should
transparently start a new connection.
Regards,
Rainer
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