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From "Craig Palmer" <Craig.Pal...@peace.com>
Subject RE: Test hangs on Sun Solaris
Date Mon, 08 Nov 2004 17:50:20 GMT
Often the best way to diagnose a JVM hang is to get a thread dump. Do a
kill -3 on the proc id. It will tell you if there are any active threads
and what they are waiting for.

-----Original Message-----
From: Coret Bob [mailto:b.coret@pinkroccade.com] 
Sent: Tuesday, November 09, 2004 3:50 AM
To: JMeter Users List
Subject: Test hangs on Sun Solaris


I have got an simple script which is run four times hour to test the
response of the site over a longer time. I have made a script which runs
indefinitly with an appropiate Constant Timer (of 900.000ms). I also
have a script (which requests the same pages) which runs the script only
once, I can activate this script with the use of cron of other
scheduler. 

Both script works OK on a Windows machine (XP, JVM 1.4.x), but on Sun
Solaris this script "hangs" after a while (usually 1-2 hours). With
"hangs" I mean that there's no response for an request. In the cron
version subsequent scripts don't seem to run. 

Are there any known bugs regaring Jmeter / JDK / Sun Solaris ?

Some additional info:


> ps -ef (snapshot 15:15)

    root 24932 24930  0 11:45:00 ?        0:07 java -Xms256m -Xmx256m
-XX:NewSize=128m -XX:MaxNewSize=128m -XX:SurvivorRatio=8
    root 24942 24940  0 12:15:01 ?        0:06 java -Xms256m -Xmx256m
-XX:NewSize=128m -XX:MaxNewSize=128m -XX:SurvivorRatio=8

> netstat -an (snapshot 15:15)
192.87.XX.YY.34119   145.97.XX.YY.80       7504      0 24840      0
ESTABLISHED
192.87.XX.YY.34131   145.97.XX.YY.80       7504      0 24840      0
ESTABLISHED

> uname -a 
SunOS XXXX 5.8 Generic_108528-29 sun4u sparc SUNW,Sun-Blade-100

> java -version
java version "1.4.2_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_06-b03)
Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode)


Regards,
Bob Coret

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