> We're running Red Hat Linux 6.1, kernel 2.2.12 and
> glibc 2.1.2 on Pentium SMP machines. After several
> hours of running, sometimes one node will crash,
> giving:
> 
> Exception in thread "main" java.lang.OutOfMemoryError
>         <<no stack trace available>>

two things wrong here.

1) if you're running RH6.1 and kernel 2.2.12, chances are you aren't
running glibc2.1.3, which in my experience is *critical* to making java
work with SMP and native threads.

and i have tracked this issue very carefully for a long time. upgrade to
RH6.2 *now*.

2) OutOfMemoryError means exactly that. are you sure you're setting the
JVM size to suit your needs? the default is quite small, and it's not
going to grow unless you say it can.

the jdk1.3 refresh from sun - which amazingly enough came out
simultaneously for solaris sparc, solaris x86, and linux - runs on SMP
for me with jit and native threads.

at long last, it just works.


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