mirror of
https://github.com/vale981/ray
synced 2025-03-06 18:41:40 -05:00
513 lines
16 KiB
Python
513 lines
16 KiB
Python
from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import numpy as np
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import os
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import ray
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import sys
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import tempfile
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import time
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import unittest
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import ray.ray_constants as ray_constants
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import pytest
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def relevant_errors(error_type):
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return [info for info in ray.error_info() if info["type"] == error_type]
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def wait_for_errors(error_type, num_errors, timeout=10):
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start_time = time.time()
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while time.time() - start_time < timeout:
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if len(relevant_errors(error_type)) >= num_errors:
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return
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time.sleep(0.1)
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raise Exception("Timing out of wait.")
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class TaskStatusTest(unittest.TestCase):
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def tearDown(self):
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ray.shutdown()
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def testFailedTask(self):
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@ray.remote
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def throw_exception_fct1():
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raise Exception("Test function 1 intentionally failed.")
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@ray.remote
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def throw_exception_fct2():
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raise Exception("Test function 2 intentionally failed.")
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@ray.remote(num_return_vals=3)
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def throw_exception_fct3(x):
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raise Exception("Test function 3 intentionally failed.")
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ray.init(num_workers=3, driver_mode=ray.SILENT_MODE)
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throw_exception_fct1.remote()
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throw_exception_fct1.remote()
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wait_for_errors(ray_constants.TASK_PUSH_ERROR, 2)
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assert len(relevant_errors(ray_constants.TASK_PUSH_ERROR)) == 2
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for task in relevant_errors(ray_constants.TASK_PUSH_ERROR):
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msg = task.get("message")
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assert "Test function 1 intentionally failed." in msg
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x = throw_exception_fct2.remote()
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try:
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ray.get(x)
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except Exception as e:
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assert "Test function 2 intentionally failed." in str(e)
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else:
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# ray.get should throw an exception.
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assert False
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x, y, z = throw_exception_fct3.remote(1.0)
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for ref in [x, y, z]:
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try:
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ray.get(ref)
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except Exception as e:
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assert "Test function 3 intentionally failed." in str(e)
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else:
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# ray.get should throw an exception.
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assert False
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@ray.remote
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def f():
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raise Exception("This function failed.")
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try:
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ray.get(f.remote())
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except Exception as e:
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assert "This function failed." in str(e)
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else:
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# ray.get should throw an exception.
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assert False
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def testFailImportingRemoteFunction(self):
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ray.init(num_workers=2, driver_mode=ray.SILENT_MODE)
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# Create the contents of a temporary Python file.
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temporary_python_file = """
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def temporary_helper_function():
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return 1
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"""
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f = tempfile.NamedTemporaryFile(suffix=".py")
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f.write(temporary_python_file.encode("ascii"))
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f.flush()
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directory = os.path.dirname(f.name)
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# Get the module name and strip ".py" from the end.
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module_name = os.path.basename(f.name)[:-3]
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sys.path.append(directory)
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module = __import__(module_name)
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# Define a function that closes over this temporary module. This should
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# fail when it is unpickled.
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@ray.remote
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def g():
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return module.temporary_python_file()
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wait_for_errors(ray_constants.REGISTER_REMOTE_FUNCTION_PUSH_ERROR, 2)
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assert "No module named" in ray.error_info()[0]["message"]
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assert "No module named" in ray.error_info()[1]["message"]
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# Check that if we try to call the function it throws an exception and
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# does not hang.
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for _ in range(10):
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with pytest.raises(Exception):
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ray.get(g.remote())
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f.close()
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# Clean up the junk we added to sys.path.
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sys.path.pop(-1)
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def testFailedFunctionToRun(self):
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ray.init(num_workers=2, driver_mode=ray.SILENT_MODE)
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def f(worker):
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if ray.worker.global_worker.mode == ray.WORKER_MODE:
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raise Exception("Function to run failed.")
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ray.worker.global_worker.run_function_on_all_workers(f)
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wait_for_errors(ray_constants.FUNCTION_TO_RUN_PUSH_ERROR, 2)
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# Check that the error message is in the task info.
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error_info = ray.error_info()
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assert len(error_info) == 2
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assert "Function to run failed." in error_info[0]["message"]
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assert "Function to run failed." in error_info[1]["message"]
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def testFailImportingActor(self):
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ray.init(num_workers=2, driver_mode=ray.SILENT_MODE)
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# Create the contents of a temporary Python file.
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temporary_python_file = """
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def temporary_helper_function():
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return 1
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"""
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f = tempfile.NamedTemporaryFile(suffix=".py")
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f.write(temporary_python_file.encode("ascii"))
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f.flush()
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directory = os.path.dirname(f.name)
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# Get the module name and strip ".py" from the end.
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module_name = os.path.basename(f.name)[:-3]
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sys.path.append(directory)
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module = __import__(module_name)
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# Define an actor that closes over this temporary module. This should
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# fail when it is unpickled.
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@ray.remote
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class Foo(object):
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def __init__(self):
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self.x = module.temporary_python_file()
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def get_val(self):
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return 1
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# There should be no errors yet.
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assert len(ray.error_info()) == 0
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# Create an actor.
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foo = Foo.remote()
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# Wait for the error to arrive.
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wait_for_errors(ray_constants.REGISTER_ACTOR_PUSH_ERROR, 1)
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assert "No module named" in ray.error_info()[0]["message"]
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# Wait for the error from when the __init__ tries to run.
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wait_for_errors(ray_constants.TASK_PUSH_ERROR, 1)
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assert ("failed to be imported, and so cannot execute this method" in
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ray.error_info()[1]["message"])
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# Check that if we try to get the function it throws an exception and
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# does not hang.
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with pytest.raises(Exception):
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ray.get(foo.get_val.remote())
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# Wait for the error from when the call to get_val.
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wait_for_errors(ray_constants.TASK_PUSH_ERROR, 2)
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assert ("failed to be imported, and so cannot execute this method" in
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ray.error_info()[2]["message"])
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f.close()
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# Clean up the junk we added to sys.path.
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sys.path.pop(-1)
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class ActorTest(unittest.TestCase):
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def tearDown(self):
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ray.shutdown()
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def testFailedActorInit(self):
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ray.init(num_workers=0, driver_mode=ray.SILENT_MODE)
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error_message1 = "actor constructor failed"
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error_message2 = "actor method failed"
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@ray.remote
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class FailedActor(object):
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def __init__(self):
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raise Exception(error_message1)
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def get_val(self):
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return 1
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def fail_method(self):
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raise Exception(error_message2)
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a = FailedActor.remote()
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# Make sure that we get errors from a failed constructor.
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wait_for_errors(ray_constants.TASK_PUSH_ERROR, 1)
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assert len(ray.error_info()) == 1
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assert error_message1 in ray.error_info()[0]["message"]
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# Make sure that we get errors from a failed method.
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a.fail_method.remote()
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wait_for_errors(ray_constants.TASK_PUSH_ERROR, 2)
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assert len(ray.error_info()) == 2
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assert error_message2 in ray.error_info()[1]["message"]
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def testIncorrectMethodCalls(self):
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ray.init(num_workers=0, driver_mode=ray.SILENT_MODE)
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@ray.remote
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class Actor(object):
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def __init__(self, missing_variable_name):
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pass
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def get_val(self, x):
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pass
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# Make sure that we get errors if we call the constructor incorrectly.
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# Create an actor with too few arguments.
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with pytest.raises(Exception):
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a = Actor.remote()
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# Create an actor with too many arguments.
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with pytest.raises(Exception):
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a = Actor.remote(1, 2)
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# Create an actor the correct number of arguments.
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a = Actor.remote(1)
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# Call a method with too few arguments.
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with pytest.raises(Exception):
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a.get_val.remote()
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# Call a method with too many arguments.
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with pytest.raises(Exception):
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a.get_val.remote(1, 2)
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# Call a method that doesn't exist.
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with pytest.raises(AttributeError):
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a.nonexistent_method()
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with pytest.raises(AttributeError):
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a.nonexistent_method.remote()
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class WorkerDeath(unittest.TestCase):
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def tearDown(self):
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ray.shutdown()
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def testWorkerRaisingException(self):
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ray.init(num_workers=1, driver_mode=ray.SILENT_MODE)
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@ray.remote
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def f():
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ray.worker.global_worker._get_next_task_from_local_scheduler = None
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# Running this task should cause the worker to raise an exception after
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# the task has successfully completed.
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f.remote()
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wait_for_errors(ray_constants.WORKER_CRASH_PUSH_ERROR, 1)
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wait_for_errors(ray_constants.WORKER_DIED_PUSH_ERROR, 1)
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assert len(ray.error_info()) == 2
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def testWorkerDying(self):
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ray.init(num_workers=0, driver_mode=ray.SILENT_MODE)
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# Define a remote function that will kill the worker that runs it.
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@ray.remote
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def f():
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eval("exit()")
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f.remote()
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wait_for_errors(ray_constants.WORKER_DIED_PUSH_ERROR, 1)
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error_info = ray.error_info()
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assert len(error_info) == 1
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assert "died or was killed while executing" in error_info[0]["message"]
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def testActorWorkerDying(self):
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ray.init(num_workers=0, driver_mode=ray.SILENT_MODE)
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@ray.remote
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class Actor(object):
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def kill(self):
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eval("exit()")
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@ray.remote
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def consume(x):
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pass
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a = Actor.remote()
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[obj], _ = ray.wait([a.kill.remote()], timeout=5000)
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with pytest.raises(Exception):
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ray.get(obj)
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with pytest.raises(Exception):
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ray.get(consume.remote(obj))
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wait_for_errors(ray_constants.WORKER_DIED_PUSH_ERROR, 1)
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def testActorWorkerDyingFutureTasks(self):
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ray.init(num_workers=0, driver_mode=ray.SILENT_MODE)
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@ray.remote
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class Actor(object):
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def getpid(self):
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return os.getpid()
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def sleep(self):
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time.sleep(1)
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a = Actor.remote()
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pid = ray.get(a.getpid.remote())
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tasks1 = [a.sleep.remote() for _ in range(10)]
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os.kill(pid, 9)
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time.sleep(0.1)
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tasks2 = [a.sleep.remote() for _ in range(10)]
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for obj in tasks1 + tasks2:
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with pytest.raises(Exception):
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ray.get(obj)
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wait_for_errors(ray_constants.WORKER_DIED_PUSH_ERROR, 1)
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def testActorWorkerDyingNothingInProgress(self):
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ray.init(num_workers=0, driver_mode=ray.SILENT_MODE)
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@ray.remote
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class Actor(object):
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def getpid(self):
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return os.getpid()
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a = Actor.remote()
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pid = ray.get(a.getpid.remote())
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os.kill(pid, 9)
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time.sleep(0.1)
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task2 = a.getpid.remote()
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with pytest.raises(Exception):
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ray.get(task2)
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@unittest.skipIf(
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os.environ.get("RAY_USE_XRAY") == "1",
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"This test does not work with xray yet.")
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class PutErrorTest(unittest.TestCase):
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def tearDown(self):
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ray.shutdown()
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def testPutError1(self):
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store_size = 10**6
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ray.worker._init(
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start_ray_local=True,
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driver_mode=ray.SILENT_MODE,
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object_store_memory=store_size)
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num_objects = 3
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object_size = 4 * 10**5
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# Define a task with a single dependency, a numpy array, that returns
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# another array.
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@ray.remote
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def single_dependency(i, arg):
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arg = np.copy(arg)
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arg[0] = i
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return arg
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@ray.remote
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def put_arg_task():
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# Launch num_objects instances of the remote task, each dependent
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# on the one before it. The result of the first task should get
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# evicted.
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args = []
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arg = single_dependency.remote(
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0, np.zeros(object_size, dtype=np.uint8))
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for i in range(num_objects):
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arg = single_dependency.remote(i, arg)
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args.append(arg)
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# Get the last value to force all tasks to finish.
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value = ray.get(args[-1])
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assert value[0] == i
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# Get the first value (which should have been evicted) to force
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# reconstruction. Currently, since we're not able to reconstruct
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# `ray.put` objects that were evicted and whose originating tasks
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# are still running, this for-loop should hang and push an error to
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# the driver.
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ray.get(args[0])
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put_arg_task.remote()
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# Make sure we receive the correct error message.
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wait_for_errors(ray_constants.PUT_RECONSTRUCTION_PUSH_ERROR, 1)
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def testPutError2(self):
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# This is the same as the previous test, but it calls ray.put directly.
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store_size = 10**6
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ray.worker._init(
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start_ray_local=True,
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driver_mode=ray.SILENT_MODE,
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object_store_memory=store_size)
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num_objects = 3
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object_size = 4 * 10**5
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# Define a task with a single dependency, a numpy array, that returns
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# another array.
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@ray.remote
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def single_dependency(i, arg):
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arg = np.copy(arg)
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arg[0] = i
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return arg
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@ray.remote
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def put_task():
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# Launch num_objects instances of the remote task, each dependent
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# on the one before it. The result of the first task should get
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# evicted.
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args = []
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arg = ray.put(np.zeros(object_size, dtype=np.uint8))
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for i in range(num_objects):
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arg = single_dependency.remote(i, arg)
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args.append(arg)
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# Get the last value to force all tasks to finish.
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value = ray.get(args[-1])
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assert value[0] == i
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# Get the first value (which should have been evicted) to force
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# reconstruction. Currently, since we're not able to reconstruct
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# `ray.put` objects that were evicted and whose originating tasks
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# are still running, this for-loop should hang and push an error to
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# the driver.
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ray.get(args[0])
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put_task.remote()
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# Make sure we receive the correct error message.
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wait_for_errors(ray_constants.PUT_RECONSTRUCTION_PUSH_ERROR, 1)
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class ConfigurationTest(unittest.TestCase):
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def tearDown(self):
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ray.shutdown()
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def testVersionMismatch(self):
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ray_version = ray.__version__
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ray.__version__ = "fake ray version"
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ray.init(num_workers=1, driver_mode=ray.SILENT_MODE)
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wait_for_errors(ray_constants.VERSION_MISMATCH_PUSH_ERROR, 1)
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ray.__version__ = ray_version
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class WarningTest(unittest.TestCase):
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def tearDown(self):
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ray.shutdown()
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def testExportLargeObjects(self):
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import ray.ray_constants as ray_constants
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ray.init(num_workers=1)
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large_object = np.zeros(2 * ray_constants.PICKLE_OBJECT_WARNING_SIZE)
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@ray.remote
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def f():
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large_object
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# Make sure that a warning is generated.
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wait_for_errors(ray_constants.PICKLING_LARGE_OBJECT_PUSH_ERROR, 1)
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@ray.remote
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class Foo(object):
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def __init__(self):
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large_object
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Foo.remote()
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# Make sure that a warning is generated.
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wait_for_errors(ray_constants.PICKLING_LARGE_OBJECT_PUSH_ERROR, 2)
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if __name__ == "__main__":
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unittest.main(verbosity=2)
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