FileNotFoundError: [Errno 2] No such file or directory: '../config/redis_address'

[lucgiffon]

Hello,
I ran into this exception when trying to execute learning_transforms.py. This exception was actually caught but throw an other into ray module. Find here the full stack trace:

/home/luc/anaconda3/envs/pytorch/bin/python /home/luc/PycharmProjects/learning-circuits/learning_transforms/learning_transforms.py
WARNING: Not monitoring node memory since `psutil` is not installed. Install this with `pip install psutil` (or ray[debug]) to enable debugging of memory-related crashes.
/home/luc/PycharmProjects/learning-circuits/butterfly/butterfly_multiply.py:17: UserWarning: C++/CUDA extension isn't installed. Will use butterfly multiply implemented in Pytorch, which is much slower.
  warnings.warn("C++/CUDA extension isn't installed. Will use butterfly multiply implemented in Pytorch, which is much slower.")
/home/luc/PycharmProjects/learning-circuits/butterfly/permutation_multiply.py:14: UserWarning: C++/CUDA extension isn't installed. Will use butterfly multiply implemented in Pytorch, which is much slower.
  warnings.warn("C++/CUDA extension isn't installed. Will use butterfly multiply implemented in Pytorch, which is much slower.")
INFO - Transform_factorization - Running command 'run'
INFO - Transform_factorization - Started run with ID "1"
2019-11-13 09:39:15,160	WARNING worker.py:1406 -- WARNING: Not updating worker name since `setproctitle` is not installed. Install this with `pip install setproctitle` (or ray[debug]) to enable monitoring of worker processes.
2019-11-13 09:39:15,160	INFO node.py:423 -- Process STDOUT and STDERR is being redirected to /tmp/ray/session_2019-11-13_09-39-15_32391/logs.
2019-11-13 09:39:15,265	INFO services.py:363 -- Waiting for redis server at 127.0.0.1:35395 to respond...
ERROR - Transform_factorization - Failed after 0:00:00!
Traceback (most recent calls WITHOUT Sacred internals):
  File "/home/luc/PycharmProjects/learning-circuits/learning_transforms/learning_transforms.py", line 176, in run
    with open('../config/redis_address', 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '../config/redis_address'

During handling of the above exception, another exception occurred:

Traceback (most recent calls WITHOUT Sacred internals):
  File "/home/luc/PycharmProjects/learning-circuits/learning_transforms/learning_transforms.py", line 180, in run
    ray.init()
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/worker.py", line 1473, in init
    head=True, shutdown_at_exit=False, ray_params=ray_params)
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/node.py", line 103, in __init__
    self.start_ray_processes()
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/node.py", line 427, in start_ray_processes
    self.start_redis()
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/node.py", line 271, in start_redis
    redis_max_memory=self._ray_params.redis_max_memory)
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/services.py", line 576, in start_redis
    system_memory = ray.utils.get_system_memory()
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/utils.py", line 387, in get_system_memory
    memory_in_bytes = vmstat("total memory") * bytes_in_kilobyte
  File "/home/luc/anaconda3/envs/pytorch/lib/python3.6/site-packages/ray/utils.py", line 336, in vmstat
    raise ValueError("Can't find {} in 'vmstat' output.".format(stat))
ValueError: Can't find b'total memory' in 'vmstat' output.


Process finished with exit code 1

Have you got any idea on how to solve this issue?
Thank you
Luc

[tridao]

It might be an error on Ray's side. Can you check that you can run Ray's quick start example (https://github.com/ray-project/ray)?
Which OS are you using? We've only tested on Linux (Ubuntu and Debian).