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from __future__ import annotations
import asyncio
import pytest
from distributed import Nanny
from distributed.client import wait
from distributed.compatibility import LINUX
from distributed.diagnostics.progress import (
AllProgress,
GroupTiming,
MultiProgress,
Progress,
SchedulerPlugin,
)
from distributed.utils_test import dec, div, gen_cluster, inc, nodebug, slowdec, slowinc
def f(*args):
pass
def g(*args):
pass
def h(*args):
pass
@nodebug
@pytest.mark.flaky(reruns=10, reruns_delay=5)
@gen_cluster(client=True)
async def test_many_Progress(c, s, a, b):
x = c.submit(f, 1)
y = c.submit(g, x)
z = c.submit(h, y)
bars = [Progress(keys=[z], scheduler=s) for _ in range(10)]
await asyncio.gather(*(bar.setup() for bar in bars))
await z
while not all(b.status == "finished" for b in bars):
await asyncio.sleep(0.01)
@gen_cluster(client=True)
async def test_multiprogress(c, s, a, b):
x1 = c.submit(f, 1)
x2 = c.submit(f, x1)
x3 = c.submit(f, x2)
y1 = c.submit(g, x3)
y2 = c.submit(g, y1)
p = MultiProgress([y2], scheduler=s, complete=True)
await p.setup()
assert p.all_keys == {
"f": {f.key for f in [x1, x2, x3]},
"g": {f.key for f in [y1, y2]},
}
await x3
assert p.keys["f"] == set()
await y2
assert p.keys == {"f": set(), "g": set()}
assert p.status == "finished"
@gen_cluster(client=True)
async def test_robust_to_bad_plugin(c, s, a, b):
class Bad(SchedulerPlugin):
def transition(self, key, start, finish, **kwargs):
raise Exception()
bad = Bad()
s.add_plugin(bad)
x = c.submit(inc, 1)
y = c.submit(inc, x)
result = await y
assert result == 3
def check_bar_completed(capsys, width=40):
out, err = capsys.readouterr()
bar, percent, time = (i.strip() for i in out.split("\r")[-1].split("|"))
assert bar == "[" + "#" * width + "]"
assert percent == "100% Completed"
@pytest.mark.flaky(condition=LINUX, reruns=10, reruns_delay=5)
@gen_cluster(client=True, Worker=Nanny)
async def test_AllProgress(c, s, a, b):
x, y, z = c.map(inc, [1, 2, 3])
xx, yy, zz = c.map(dec, [x, y, z])
await wait([x, y, z])
p = AllProgress(s)
assert p.all["inc"] == {x.key, y.key, z.key}
assert p.state["memory"]["inc"] == {x.key, y.key, z.key}
assert p.state["released"] == {}
assert p.state["erred"] == {}
assert "inc" in p.nbytes
assert isinstance(p.nbytes["inc"], int)
assert p.nbytes["inc"] > 0
await wait([xx, yy, zz])
assert p.all["dec"] == {xx.key, yy.key, zz.key}
assert p.state["memory"]["dec"] == {xx.key, yy.key, zz.key}
assert p.state["released"] == {}
assert p.state["erred"] == {}
assert p.nbytes["inc"] == p.nbytes["dec"]
t = c.submit(sum, [x, y, z])
await t
keys = {x.key, y.key, z.key}
del x, y, z
while any(s.tasks[k].who_has for k in keys):
await asyncio.sleep(0.01)
assert p.state["released"]["inc"] == keys
assert p.all["inc"] == keys
assert p.all["dec"] == {xx.key, yy.key, zz.key}
if "inc" in p.nbytes:
assert p.nbytes["inc"] == 0
xxx = c.submit(div, 1, 0)
await wait([xxx])
assert p.state["erred"] == {"div": {xxx.key}}
tkey = t.key
del xx, yy, zz, t
while tkey in s.tasks:
await asyncio.sleep(0.01)
for coll in [p.all, p.nbytes] + list(p.state.values()):
assert "inc" not in coll
assert "dec" not in coll
def f(x):
return x
for i in range(4):
future = c.submit(f, i)
await asyncio.sleep(1)
await wait([future])
assert p.state["memory"] == {"f": {future.key}}
await c._restart()
for coll in [p.all] + list(p.state.values()):
assert not coll
x = c.submit(div, 1, 2)
await wait([x])
assert set(p.all) == {"div"}
assert all(set(d) == {"div"} for d in p.state.values())
@pytest.mark.flaky(condition=LINUX, reruns=10, reruns_delay=5)
@gen_cluster(client=True, Worker=Nanny)
async def test_AllProgress_lost_key(c, s, a, b):
p = AllProgress(s)
futures = c.map(inc, range(5))
await wait(futures)
assert len(p.state["memory"]["inc"]) == 5
await a.close()
await b.close()
while len(p.state["memory"]["inc"]) > 0:
await asyncio.sleep(0.01)
@gen_cluster(client=True, Worker=Nanny)
async def test_group_timing(c, s, a, b):
p = GroupTiming(s)
s.add_plugin(p)
assert len(p.time) == 2
assert len(p.nthreads) == 2
futures1 = c.map(slowinc, range(10), delay=0.3)
futures2 = c.map(slowdec, range(10), delay=0.3)
await wait(futures1 + futures2)
assert len(p.time) > 2
assert len(p.nthreads) == len(p.time)
assert all([nt == s.total_nthreads for nt in p.nthreads])
assert "slowinc" in p.compute
assert "slowdec" in p.compute
assert all([len(v) == len(p.time) for v in p.compute.values()])
assert s.task_groups.keys() == p.compute.keys()
assert all(
[
abs(s.task_groups[k].all_durations["compute"] - sum(v)) < 1.0e-12
for k, v in p.compute.items()
]
)
await s.restart()
assert len(p.time) == 2
assert len(p.nthreads) == 2
assert len(p.compute) == 0
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