[Iplant-api-dev] cannot set java heap size on lonestar; fatal error; JRE_HOME typo bug

[Rion Dooley]

It’s a known memory issues between 32 and 64 bit versions. Just specify the memory limit directly. Anything under 6000m should be fine.

login1$ java -Xmx5099m -version
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)
login1$
login1$
login1$ java -Xmx6000m -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
--
Rion




On Dec 10, 2013, at 4:21 PM, Damian Gessler <dgessler at iplantcollaborative.org<mailto:dgessler at iplantcollaborative.org>> wrote:

Hi,

On TACC lonestar, given:

login2$ module java64
login2$ which java
/share1/apps/teragrid/jdk64/jdk1.7.0_45/bin/java


When I try to run 'java' (whether I use -Xms, -Xmx memory settings or
not), it always returns a fatal heap alloc error, even if just checking
the version; e.g.:

login2$ java -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Also, inspecting my environ shows:

JAVA_BINDIR=/share1/apps/teragrid/jdk64/jdk1.7.0_45/bin
JAVA_HOME=/share1/apps/teragrid/jdk64/jdk1.7.0_45
JAVA_ROOT=/share1/apps/teragrid/jdk64/jdk1.7.0_45
JDK_HOME=/share1/apps/teragrid/jdk64/jdk1.7.0_45
JRE_HOME=/share1/apps/teragrid/jdk64/jdk1.7.0_45/rje

Notice the incorrect value for JRE_HOME; that is a typo (from the module
load process). Correct value is: /share1/apps/teragrid/jdk64/jdk1.7.0_45/jre

Is there some other way that I should be invoking Java, or is a module
fix needed?

Thanks,
Damian.
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