From a snoop capture, Apache Coyote sent a TCP FIN 20 seconds after the last ACK from the client.
But the client did not sent a TCP FIN of its own, leaving the socket in CLOSE_WAIT.
The only difference between the Coyote's HTTP response and Orion's HTTP response is that the Orion response have "Connection: close" in the HTTP header.
So, what I did, by using HttpClient, I added:
postMethod.addRequestHeader( "Connection", "close");
After the above, I no longer have CLOSE_WAIT sockets.
Regards,
John
Jesus M. Salvo Jr. wrote:
HttpClient RC 2.0 64-bit Solaris 8 JDK 1.3.1_09
I am seeing lots of sockets in CLOSE_WAIT, despite the fact that "postMethod.releaseConnection();" is called.
This has happened so far against 2 of our ( different ) clients' webservers, mostly to Tomcat / Coyote.
The problem with CLOSE_WAIT sockets do not seem to be happening against Orion.
What happens in the long run is that I run of file descriptors
I am now able to reproduce the same problem against the client's test webservers ...
but in turnin on logging, the logging is not being logged on stdout.
In order to give meaningful results to this list about my CLOSE_WAIT problem,
I wrote a small class and script to replicate the problem, but still no logging.
Here is the sample shell script run on cygwin:
CLASSPATH=classes
CLASSPATH=$CLASSPATH\;/cvs/softgame-latest/development/lib/commons-httpclient.jar
CLASSPATH=$CLASSPATH\;/cvs/softgame-latest/development/lib/commons-logging.jar
REM CLASSPATH=$CLASSPATH\;/cvs/softgame-latest/development/lib/log4j.jar
java \
-Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.SimpleLog \
-Dorg.apache.commons.logging.simplelog.showdatetime=true \
-Dorg.apache.commons.logging.simplelog.log.httpclient.wire=debug \
-Dorg.apache.commons.logging.simplelog.log.org.apache.commons.httpclient=debug \
$JAVA_DEFINES -classpath $CLASSPATH HttpClientTest
Help !
Regards,
John
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