On Feb 17, 2008, at 2:25 PM, the666pack wrote:
hello,
i try to performance test the geronimo applicatoin server but after 2
minutes of testing the JVM hangs up and i get the following message
on the
command line:
java.lang.OutOfMemoryError: Java heap space
my customized options for the jvm are:
-server -Xms1280m -Xmx1280m -XX:PermSize=1280m -XX:MaxPermSize=1280m
so this should be sufficient for the heap! unfortunately at 40
simultaneous
calls the JVM hangs and i just can kill it via the system call!
i also observed that the memory is not allocated, there is still
plenty of
memory left (at least 3/4 of my 2048m) and it does not change the
size also
not with more requests. but after 2 minutes->crash!
also my call is fairly simple: it is a single call to a JSP page
which just
returns the date. so this really should be possible. but i cannot
see the
reason for the Exception anymore!
so if anyone can help, PLEASE!
Mario,
What version of Geronimo are you using?
If you're using the Sun VM and have a small application, then rerun
with the following options:
export JAVA_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:
+HeapDumpOnOutOfMemoryError"
You can then use tools like YourKit to analyze the resultant .hprof
file. Recommend you must let max heap default (otherwise you end up
with a really large heapdump). If you can make the heapdump available
to me, I'll have a look... Or give me instructions on how to recreate,
and I'll see if I'm able to generate the same problem.
--kevan
