ArangoDB v3.11 is under development and not released yet.
This documentation is not final and potentially incomplete.
ArangoDB Server Random Options
Random Number Generator
Defines the type of random number generator to use.
The argument is an integer which sets the manner in which random numbers are generated.
1: a pseudorandom number generator using an implication of the Mersenne Twister MT19937 algorithm
2: use a blocking random (or pseudorandom) number generator
3: use the non-blocking random (or pseudorandom) number generator supplied by the operating system
4: a combination of the blocking random number generator and the Mersenne Twister (not available on Windows)
5: use WinCrypt (Windows only)