Sounds like memory leaks in your code.  Calling runtime.gc() is pretty
useless as the JVM will not garbage collect any referenced objects and there
is no guarantee that garbage collection will run at any given time.

Cheers!
Mark

-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
sanjay
Sent: Tuesday, January 22, 2002 12:25 AM
To: [EMAIL PROTECTED]
Subject: Excessive memory issues


Hello all:
We are facing the problem of excessive memory usage by our
servlets (that call JNI functions). The memory usage seems
to touch 50+ MB in 2000 Server but it drops down to 30 MB
soon. But, this does not happen in NT. The memory keeps on
increasing and there is a point in time when Tomcat occupies
*all* the available memory.
We are taking care of *garbage collecting* the objects
frequently(by calling Runtime.gc()). Is there any other way
by which we can have some kind of control over the usage of
memory?
Do we have to install a patch for NT (if something like this
is available)?

NT Server:
----------
PIII 500 MHz, 256MB RAM, 40GB HDD

2000 Server:
------------
PIII 700 MHz, 128MB RAM, 20GB HDD

Tomcat:
-------
Version 3.2.1

JDK:
----
Sun's JDK 1.3

Any suggestions, pointers are appreciated.
Thanks
Sanjay

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