[英]Prometheus how to expose metrics in multiprocess app with start_http_server
How expose metrics in multiprocess app use start_http_server如何在多进程应用程序中公开指标使用 start_http_server
I found many examples with gunicorn in internet but i want use start_http_server我在互联网上发现了很多 gunicorn 的例子,但我想使用 start_http_server
what should i do with code below to make it work properly?我应该如何处理下面的代码以使其正常工作?
from multiprocessing import Process
import time, os
from prometheus_client import start_http_server, multiprocess, CollectorRegistry, Counter
MY_COUNTER = Counter('my_counter', 'Description of my counter')
os.environ["PROMETHEUS_MULTIPROC_DIR"] = "tmp"
def f():
print("+1")
MY_COUNTER.inc()
if __name__ == '__main__':
start_http_server(8000)
p = Process(target=f, args=())
a = p.start()
p2 = Process(target=f, args=())
p2.start()
time.sleep(1)
print("collect")
registry = CollectorRegistry()
data = multiprocess.MultiProcessCollector(registry)
while True:
time.sleep(1)
I was figuring out the same thing, and the solution was as simple as you would imagine.我也在想同样的事情,解决方案和你想象的一样简单。
Updated your example code to work:更新了您的示例代码以使其正常工作:
from multiprocessing import Process
import shutil
import time, os
from prometheus_client import start_http_server, multiprocess, CollectorRegistry, Counter
# ensure variable exists, and ensure defined folder is clean on start
prome_stats = os.environ["PROMETHEUS_MULTIPROC_DIR"]
if os.path.exists(prome_stats):
shutil.rmtree(prome_stats)
os.mkdir(prome_stats)
MY_COUNTER = Counter('my_counter', 'Description of my counter')
def f():
while True:
time.sleep(1)
print("+1")
MY_COUNTER.inc()
if __name__ == '__main__':
# pass the registry to server
registry = CollectorRegistry()
multiprocess.MultiProcessCollector(registry)
start_http_server(8000, registry=registry)
p = Process(target=f, args=())
a = p.start()
p2 = Process(target=f, args=())
p2.start()
print("collect")
while True:
time.sleep(1)
localhost:8000/metrics
# HELP my_counter_total Multiprocess metric
# TYPE my_counter_total counter
my_counter_total 16.0
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