mirror of
https://github.com/vale981/ray
synced 2025-03-06 10:31:39 -05:00
72 lines
2.1 KiB
Python
72 lines
2.1 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 logging
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import os
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import pytest
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import ray
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import ray.services as services
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from ray.test.cluster_utils import Cluster
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logger = logging.getLogger(__name__)
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@pytest.fixture
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def start_connected_cluster():
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# Start the Ray processes.
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g = Cluster(initialize_head=True, connect=True)
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yield g
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# The code after the yield will run as teardown code.
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ray.shutdown()
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g.shutdown()
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@pytest.mark.skipif(
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os.environ.get("RAY_USE_XRAY") != "1",
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reason="This test only works with xray.")
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def test_cluster():
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"""Basic test for adding and removing nodes in cluster."""
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g = Cluster(initialize_head=False)
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node = g.add_node()
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node2 = g.add_node()
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assert node.all_processes_alive()
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assert node2.all_processes_alive()
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g.remove_node(node2)
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g.remove_node(node)
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assert not any(node.any_processes_alive() for node in g.list_all_nodes())
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@pytest.mark.skipif(
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os.environ.get("RAY_USE_XRAY") != "1",
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reason="This test only works with xray.")
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def test_wait_for_nodes(start_connected_cluster):
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"""Unit test for `Cluster.wait_for_nodes`.
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Adds 4 workers, waits, then removes 4 workers, waits,
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then adds 1 worker, waits, and removes 1 worker, waits.
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"""
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cluster = start_connected_cluster
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workers = [cluster.add_node() for i in range(4)]
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cluster.wait_for_nodes()
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[cluster.remove_node(w) for w in workers]
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cluster.wait_for_nodes()
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worker2 = cluster.add_node()
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cluster.wait_for_nodes()
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cluster.remove_node(worker2)
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cluster.wait_for_nodes()
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@pytest.mark.skipif(
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os.environ.get("RAY_USE_XRAY") != "1",
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reason="This test only works with xray.")
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def test_worker_plasma_store_failure(start_connected_cluster):
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cluster = start_connected_cluster
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worker = cluster.add_node()
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cluster.wait_for_nodes()
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# Log monitor doesn't die for some reason
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worker.kill_log_monitor()
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worker.kill_plasma_store()
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worker.process_dict[services.PROCESS_TYPE_RAYLET][0].wait()
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assert not worker.any_processes_alive(), worker.live_processes()
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