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From "Albrecht Marcus" <>
Subject Max possible ram usage
Date Wed, 21 Jul 2004 12:54:10 GMT
Hi everyone,
i want to run tomcat (version 5.0.25 and java j2sdk1.4.2_04) on my server with 5 GB RAM.
The server is a hp proliant with 2x3.06 Intel Xeon.
As i have enough ram i would allow him to use 3 GB at the max.
My java options are
JAVA_OPTS="-Xms512m -Xmx3072m"
The tomcat won't start with this options.
This is the output of my catalina.out logfile:
"Jul 21, 2004 2:28:12 PM org.apache.coyote.http11.Http11Protocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-8080
Error occurred during initialization of VM
Could not reserve enough space for object heap"
If i lower the max value i get it running with a max of 1792 MB setting (JAVA_OPTS="-Xms512m
Can anyone tell me the max ram size that tomcat/java can use?
I have't found that information anywhere on the net or mailing lists.
Thank's in advance ...



Marcus Albrecht

OC-SYS / Systemadministration



Heinrich-von-Stephan-Straße 1-5

D - 37073 Göttingen


Telefon    +49 (0) 551 / 490 - 0

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