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199 | import pytest
pytest.importorskip("asyncssh")
import sys
import dask
from dask.distributed import Client
from distributed.deploy.ssh import SSHCluster
from distributed.utils_test import loop # noqa: F401
def test_ssh_hosts_None():
with pytest.raises(ValueError):
SSHCluster(hosts=None)
def test_ssh_hosts_empty_list():
with pytest.raises(ValueError):
SSHCluster(hosts=[])
@pytest.mark.asyncio
async def test_basic():
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=dict(known_hosts=None),
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
) as cluster:
assert len(cluster.workers) == 2
async with Client(cluster, asynchronous=True) as client:
result = await client.submit(lambda x: x + 1, 10)
assert result == 11
assert not cluster._supports_scaling
assert "SSH" in repr(cluster)
@pytest.mark.asyncio
async def test_keywords():
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=dict(known_hosts=None),
asynchronous=True,
worker_options={
"nprocs": 2, # nprocs checks custom arguments with cli_keywords
"nthreads": 2,
"memory_limit": "2 GiB",
"death_timeout": "5s",
},
scheduler_options={"idle_timeout": "10s", "port": 0},
) as cluster:
async with Client(cluster, asynchronous=True) as client:
assert (
await client.run_on_scheduler(
lambda dask_scheduler: dask_scheduler.idle_timeout
)
) == 10
d = client.scheduler_info()["workers"]
assert all(v["nthreads"] == 2 for v in d.values())
@pytest.mark.avoid_travis
def test_defer_to_old(loop):
with pytest.warns(Warning):
with SSHCluster(
scheduler_addr="127.0.0.1",
scheduler_port=7437,
worker_addrs=["127.0.0.1", "127.0.0.1"],
) as c:
from distributed.deploy.old_ssh import SSHCluster as OldSSHCluster
assert isinstance(c, OldSSHCluster)
@pytest.mark.avoid_travis
def test_old_ssh_wih_local_dir(loop):
with pytest.warns(Warning):
from distributed.deploy.old_ssh import SSHCluster as OldSSHCluster
with OldSSHCluster(
scheduler_addr="127.0.0.1",
scheduler_port=7437,
worker_addrs=["127.0.0.1", "127.0.0.1"],
local_directory="/tmp",
) as c:
assert len(c.workers) == 2
with Client(c) as client:
result = client.submit(lambda x: x + 1, 10)
result = result.result()
assert result == 11
@pytest.mark.asyncio
async def test_config_inherited_by_subprocess(loop):
def f(x):
return dask.config.get("foo") + 1
with dask.config.set(foo=100):
async with SSHCluster(
["127.0.0.1"] * 2,
connect_options=dict(known_hosts=None),
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
) as cluster:
async with Client(cluster, asynchronous=True) as client:
result = await client.submit(f, 1)
assert result == 101
@pytest.mark.asyncio
async def test_unimplemented_options():
with pytest.raises(Exception):
async with SSHCluster(
["127.0.0.1"] * 3,
connect_kwargs=dict(known_hosts=None),
asynchronous=True,
worker_kwargs={
"nthreads": 2,
"memory_limit": "2 GiB",
"death_timeout": "5s",
"unimplemented_option": 2,
},
scheduler_kwargs={"idle_timeout": "5s", "port": 0},
) as cluster:
assert cluster
@pytest.mark.asyncio
async def test_list_of_connect_options():
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=[dict(known_hosts=None)] * 3,
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
) as cluster:
assert len(cluster.workers) == 2
async with Client(cluster, asynchronous=True) as client:
result = await client.submit(lambda x: x + 1, 10)
assert result == 11
assert not cluster._supports_scaling
assert "SSH" in repr(cluster)
@pytest.mark.asyncio
async def test_list_of_connect_options_raises():
with pytest.raises(RuntimeError):
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=[dict(known_hosts=None)] * 4, # Mismatch in length 4 != 3
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
) as _:
pass
@pytest.mark.asyncio
async def test_remote_python():
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=[dict(known_hosts=None)] * 3,
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
remote_python=sys.executable,
) as cluster:
assert cluster.workers[0].remote_python == sys.executable
@pytest.mark.asyncio
async def test_remote_python_as_dict():
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=[dict(known_hosts=None)] * 3,
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
remote_python=[sys.executable] * 3,
) as cluster:
assert cluster.workers[0].remote_python == sys.executable
@pytest.mark.asyncio
async def test_list_of_remote_python_raises():
with pytest.raises(RuntimeError):
async with SSHCluster(
["127.0.0.1"] * 3,
connect_options=[dict(known_hosts=None)] * 3,
asynchronous=True,
scheduler_options={"port": 0, "idle_timeout": "5s"},
worker_options={"death_timeout": "5s"},
remote_python=[sys.executable] * 4, # Mismatch in length 4 != 3
) as _:
pass
|