Is it possible to run Weblogic with 8gb heap size in 64 bit java / linux environment?
Setting: 64-bit Linux 64-bit SUN Jvm 1.6.0_20 Weblogic 10.3
Is it possible to run Weblogic 10.3 in this setup with a max heap size of 8gb? We got responses from oracle support saying that with this setup it might not be possible to address more than 4GB.
Please submit any official links that support any claims to be able to run this installation with more than 4GB of heap size. We cannot find documentation on any heap size limits when working with this setting.
Thanx
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There are 2 cases in your request:
1. Does it work? Can a bunch of 8 GB be addressed?
Sun JDK itself on 64-bit Linux with JDK 1.6 doesn't limit you to 4GB. See here . This is without Weblogic.
A similar configuration (again Sun / Linux / Jdk 1.6 minus Weblogic) was discussed here which tests 7-20GB heaps.
One of my suggestions is to try it, set Xmx to 8G and see if it shows the heap in the console as 8G size. I haven't tried this myself.
2. Will Oracle support any JVM-related issues in your configuration in the future?
I think you may be limited by what the official Oracle support provides you. The official Oracle docs do not seem to suggest this 4GB limit. Two more links on the Oracle forums, here and here , which again assume big heaps.
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