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"""
Various functional tests for TLS networking.
Most are taken from other test files and adapted.
"""
from __future__ import annotations
import asyncio
from tlz import merge
from distributed import Client, Nanny, Queue, Scheduler, Worker, wait, worker_client
from distributed.core import Status
from distributed.metrics import time
from distributed.utils_test import (
NO_AMM,
double,
gen_test,
gen_tls_cluster,
inc,
slowadd,
slowinc,
tls_config,
)
@gen_tls_cluster(client=True)
async def test_basic(c, s, a, b):
pass
@gen_tls_cluster(client=True)
async def test_Queue(c, s, a, b):
assert s.address.startswith("tls://")
x = await Queue("x")
y = await Queue("y")
size = await x.qsize()
assert size == 0
future = c.submit(inc, 1)
await x.put(future)
future2 = await x.get()
assert future.key == future2.key
@gen_tls_cluster(client=True)
async def test_client_submit(c, s, a, b):
assert s.address.startswith("tls://")
x = c.submit(inc, 10)
result = await x
assert result == 11
yy = [c.submit(slowinc, i) for i in range(10)]
results = []
for y in yy:
results.append(await y)
assert results == list(range(1, 11))
@gen_tls_cluster(client=True)
async def test_gather(c, s, a, b):
assert s.address.startswith("tls://")
x = c.submit(inc, 10)
y = c.submit(inc, x)
result = await c._gather(x)
assert result == 11
result = await c._gather([x])
assert result == [11]
result = await c._gather({"x": x, "y": [y]})
assert result == {"x": 11, "y": [12]}
@gen_tls_cluster(client=True)
async def test_scatter(c, s, a, b):
assert s.address.startswith("tls://")
d = await c._scatter({"y": 20})
ts = s.tasks["y"]
assert ts.who_has
assert ts.nbytes > 0
yy = await c._gather([d["y"]])
assert yy == [20]
@gen_tls_cluster(client=True, Worker=Nanny)
async def test_nanny(c, s, a, b):
assert s.address.startswith("tls://")
for n in [a, b]:
assert isinstance(n, Nanny)
assert n.address.startswith("tls://")
assert n.worker_address.startswith("tls://")
assert set(s.workers) == {n.worker_address for n in [a, b]}
x = c.submit(inc, 10)
result = await x
assert result == 11
@gen_tls_cluster(
client=True,
config=merge(
NO_AMM,
{
"distributed.worker.memory.rebalance.measure": "managed",
"distributed.worker.memory.rebalance.sender-min": 0,
"distributed.worker.memory.rebalance.sender-recipient-gap": 0,
},
),
)
async def test_rebalance(c, s, a, b):
"""Test Client.rebalance(). This test is just to test the TLS Client wrapper around
Scheduler.rebalance(); for more thorough tests on the latter see test_scheduler.py.
"""
assert a.address.startswith("tls://")
futures = await c.scatter(range(100), workers=[a.address])
assert len(a.data) == 100
assert len(b.data) == 0
await c.rebalance()
assert len(a.data) == 50
assert len(b.data) == 50
@gen_tls_cluster(client=True, nthreads=[("tls://127.0.0.1", 2)] * 2)
async def test_work_stealing(c, s, a, b):
[x] = await c._scatter([1], workers=a.address)
futures = c.map(slowadd, range(50), [x] * 50, delay=0.1)
await asyncio.sleep(0.1)
await wait(futures)
assert len(a.data) > 10
assert len(b.data) > 10
@gen_tls_cluster(client=True)
async def test_worker_client(c, s, a, b):
def func(x):
with worker_client() as c:
x = c.submit(inc, x)
y = c.submit(double, x)
result = x.result() + y.result()
return result
x, y = c.map(func, [10, 20])
xx, yy = await c._gather([x, y])
assert xx == 10 + 1 + (10 + 1) * 2
assert yy == 20 + 1 + (20 + 1) * 2
@gen_tls_cluster(client=True, nthreads=[("tls://127.0.0.1", 1)] * 2)
async def test_worker_client_gather(c, s, a, b):
a_address = a.address
b_address = b.address
assert a_address.startswith("tls://")
assert b_address.startswith("tls://")
assert a_address != b_address
def func():
with worker_client() as ee:
x = ee.submit(inc, 1, workers=a_address)
y = ee.submit(inc, 2, workers=b_address)
xx, yy = ee.gather([x, y])
return xx, yy
future = c.submit(func)
result = await future
assert result == (2, 3)
@gen_tls_cluster(client=True)
async def test_worker_client_executor(c, s, a, b):
def mysum():
with worker_client() as c:
with c.get_executor() as e:
return sum(e.map(double, range(30)))
future = c.submit(mysum)
result = await future
assert result == 30 * 29
@gen_tls_cluster(client=True, Worker=Nanny)
async def test_retire_workers(c, s, a, b):
assert set(s.workers) == {a.worker_address, b.worker_address}
await c.retire_workers(workers=[a.worker_address], close_workers=True)
assert set(s.workers) == {b.worker_address}
start = time()
while a.status != Status.closed:
await asyncio.sleep(0.01)
assert time() < start + 5
@gen_test()
async def test_security_dict_input_no_security():
async with Scheduler(dashboard_address=":0", security={}) as s:
async with Worker(s.address, security={}):
async with Client(s.address, security={}, asynchronous=True) as c:
result = await c.submit(inc, 1)
assert result == 2
@gen_test()
async def test_security_dict_input():
conf = tls_config()
ca_file = conf["distributed"]["comm"]["tls"]["ca-file"]
client = conf["distributed"]["comm"]["tls"]["client"]["cert"]
worker = conf["distributed"]["comm"]["tls"]["worker"]["cert"]
scheduler = conf["distributed"]["comm"]["tls"]["scheduler"]["cert"]
async with Scheduler(
host="localhost",
dashboard_address=":0",
security={"tls_ca_file": ca_file, "tls_scheduler_cert": scheduler},
) as s:
assert s.address.startswith("tls://")
async with Worker(
s.address, security={"tls_ca_file": ca_file, "tls_worker_cert": worker}
) as w:
assert w.address.startswith("tls://")
async with Client(
s.address,
security={"tls_ca_file": ca_file, "tls_client_cert": client},
asynchronous=True,
) as c:
result = await c.submit(inc, 1)
assert result == 2
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