You definitely want to flamegraph the 

This problem is often caused by the GC when you approach V8's heap size 
limit (which is around 1.5gb). So if you see your procs using around that 
much memory, you'll have to find a way to limit their memory usage.

On Monday, October 10, 2016 at 6:53:03 AM UTC-7, Bgsosh wrote:
> Hi,
> I'm having a tough time tracking down an issue we currently have in 
> production.  Our node processes will sometimes suddenly spike in CPU usage, 
> and then stay pegged at 100% until restarted.
> I'm not able to reproduce on development machine.  Could anyone offer any 
> tips for tracking this down?  Any advice would be appreciated as I'm 
> currently not getting enough sleep!
> Thank you
> Bg

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