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Subject: Memory problems
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Date: Fri, 25 Jul 2003 13:35:38 -0000
Message-ID: <88500E0F870AA542B6340D8BC05A9E1B1C697D@rup.hugsmidjan.is>
Thread-Topic: Memory problems
Thread-Index: AcNSsaIutADv9fELRhq4d2CiWw/Rdw==
From: =?iso-8859-1?Q?Reynir_H=FCbner?= <reynir@hugsmidjan.is>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>

Hi,=20
I have a server that I am trying to deploy 36 webapplications to.=20
The server is running redhat linux, with 2.5 gig ram and 4 XEON CPUs.=20

On start up it runs about 30 applications and at that time tomcat =
failes, with java.lang.OutOfMemoryException.=20
The top function shows many (192) java processes taking about 500 mb of =
memory, but I have -Xmx1500m and -Xms1g in JAVA_OPTS, so obviously the =
server is not out of memory.=20
I don't know what is happening, as I have several servers running =
similar amount of webapps on windows, with out problems.=20

Other things that run in this server are postgresql and apache (and =
really nothing else), so nothing is taking up the rest of the memory.=20

We even tried to write a small java program that takes up memory in a =
loop, that worked fine, and could take up to 1500mb and then run out of =
memory.=20

Am I looking at some kind of a limitation on tomcat (no more than =
specific amount of applications) or java (no more threads than some =
specific amount) ?

Please reply,=20
-reynir

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