Klever

Recent changes in NativeScheduler resulted in there may be use of unitialized CPU cores number when "disable CPU cores account" is set to false in the configuration file (that is the default value overwritten by deployment scripts):

root ERROR> Uncaught exception
Traceback (most recent call last):
  File "/home/novikov/work/klever/venv/bin/klever-native-scheduler", line 11, in <module>
    load_entry_point('klever', 'console_scripts', 'klever-native-scheduler')()
  File "/home/novikov/work/klever/klever/scheduler/main.py", line 56, in native_scheduler
    scheduler_impl = Scheduler(conf, logger, "scheduler/", native.Native)
  File "/home/novikov/work/klever/klever/scheduler/schedulers/__init__.py", line 111, in init
    self.init_scheduler()
  File "/home/novikov/work/klever/klever/scheduler/schedulers/__init__.py", line 135, in init_scheduler
    self.runner.init()
  File "/home/novikov/work/klever/klever/scheduler/schedulers/native.py", line 102, in init
    max_processes = max(2, int(max_processes * self._cpu_cores))
TypeError: unsupported operand type(s) for *: 'float' and 'NoneType'

Process finished with exit code 1

I suggest to try to solve this issue properly. Perhaps the necessary data can be obtained from consul. Otherwise maybe it has sense to calculate it ourselves always and get rid of the corresponding configuration property since for users it is not so obvious when to use it.