Node JS (-bash: fork: Cannot allocate memory)

Question

Here's the Node JS I'm running at the beginning of the script to clear the garbage collector and then logging the available space:

global.gc();
var bytes = process.memoryUsage().rss;
var GB = (bytes / 1073741824).toFixed(5);
g.heapMessage = "MEMORY used in bytes: " + bytes + ", in GB: " + GB + ",  custom message: " + m;

Here's the output to the shell:

JavaScript Extracted

JavaScript Processing
MEMORY used in bytes: 27869184, in GB: 0.02596,  custom message: INIT epochProp
^Z
[7]+  Stopped                 sudo ./runScript
oughtimpliescan1@ubuntu:~$ sudo ./runScript
-bash: fork: Cannot allocate memory
oughtimpliescan1@ubuntu:~$ 

As you can see, there's plenty of memory, 0.02596 GB... and yet the shell keeps telling me it cannot allocate memory, I've tried the 1,2,3 of this command:

sync; echo 1 > /proc/sys/vm/drop_caches

and I'm still having this issue, anybody know what's going on?