I think one of the files wasn't attached for some reason...
----- Original Message -----
From: Ofer Kalisky
To: users@tomcat.apache.org
Sent: Thursday, January 24, 2008 4:51 PM
Subject: Tomcat memory leak?
Hi,
I know it's weird, but I'm doing the simplest thing and can't believe there
such a leak that I'm the first one to notice. I bet it's my bad, please someone
explain, what I'm doing wrong...
I created the simplest JSP and when I load test it - tomcat (6.0.14,
jre1.6.0_03) goes to 99.9% memory use in a few minutes (If I raise the max heap
size it takes longer, but it happens several minutes afterwards), and when I
stop bombarding it, it doesn't return to the usual percentage.
When I try the same with an HTML instead of a JSP, that returns exactly the
same - it stays on 12%-20%, cleans with the garbage collector, and returns to
the usual percentage (about 12%).
I tried profiling with several plugins and external programs, but I really
can't understand what's going on. They tell me that most of the allocated bytes
are "char[]", but I'm not sure who's the allocator and if there's anything I
can do about it...
Attached are:
1. a test in python that bombards the tomcat,
2. a war with both something.jsp and something.html (they are both the same,
but when I bombard something.html everything is ok, and when I do the same for
something.jsp - the problem occurs)
Can anyone tell me what I'm doing wrong? does it happen to you too?
Thanks, Ofer.
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