Young GC pause time definitions

[Charles K Pepperdine]

> 
> 
> The customer site is running an old jdk 1.6.0_14, with
> -XX:+UseParNewGC and -XX:UseConcMarkSweepGC. Uses a 12 G heap, a
> relatively small 512Mb new size.

This seems like a highly suspicious configuration that I would guess is at the root of the problem. Please use -XX:+PrintTenuringDistribution and post the gc log if you can.

Regards,
Kirk Pepperdine