Weird (permission?)issues with java

[fusioncroc]

Hi,
When I run java from any user account it fails with the following:

curtis@server2 [/]# java -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

However running it from root works fine:

root@server2 [/]# java -version
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)

I have tried multiple versions of Java JRE and JDK 1.5 (1.5.0 and all updates)
I have not tested 1.4 though, as the application I am trying to run from a user account requires 1.5
I have searched around but have not found a solution to this, I did have a feeling it was due to ulimit... in /etc/profile and /etc/bashrc but I am not sure.
It works perfect on by Debian Sarge box though, in root and normal users.
But I cannot run the application on that one.

I did try both the .bin and .bin.rpm files by the way.
I am running CentOS 3.6, 2.4.21-32.0.1.ELsmp
JAVA_HOME is set and I have also tried running it from the full path, to no avail.

Any help would be appricated a lot, thank you

P.S I was not sure whether to post in here or Addons, but I thought it was more suited here... mods feel free to move if you want.

[wzd]

hey fusioncroc

It is a known fact that 32bit architectures limit the amount of memory any single process can allocate to 4GB. When you try to run your JVM with a -Xmx2gb flag, you'll get the error you're experiencing. This is however, ONLY a limitation of the Windows 32bit OS. 32bit processes can only use a max of 4GB memory address space. Windows further splits that into half by allocating 2GB to the kernel and 2GB to the application.
See here

Permsize explained

HOWEVER, for your problem ths is the best advice i could seem to find. Investigate this and keep us updated.

See the man page on swap, 'man swap', it's a matter of creating a file on a local disk
with mkfile, setting the permissions on it, and running swap to add it as swap space.
However, look at the files in /tmp, perhaps the /tmp area is clogged up with junk.
Normally the space for /tmp files and the swap space are the same or are shared,
so lots of /tmp files can decrease your swap space.
If that fails, look to see who has all the swap space. Try sdtprocess if you have it,
and click on Size to see what's the biggest process you have running.

Good luck

[fusioncroc]

Thanks, I will try that when I wake up in the morning.
Lucky that it is not a serious thing to be fixed, otherwise I would be up all night

[wzd]

Yeah i know the feeling. it's 4am. Coffee is wearing off and i have clients to meet tomorrow.

Give that a go and let me know how it goes. I'll see what i can find meanwhile.

[fusioncroc]

I've noticed something else.
When I do java -version from root there is no 'sharing' line.
However on my Debian box I see that line from root and non root users.
Might be the issue... or what you said about /tmp and swap.