Hi all,

I'm using Python prometheus_client's start_http_server, when I set up a service file for the script, I get a broken pipe error:

self.RequestHandlerClass(request, client_address, self)
File "/usr/lib64/python2.7/SocketServer.py", line 651, in __init__
self.finish()
File "/usr/lib64/python2.7/SocketServer.py", line 710, in finish
self.wfile.close()
File "/usr/lib64/python2.7/socket.py", line 279, in close
self.flush()
File "/usr/lib64/python2.7/socket.py", line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 32] Broken pipe

I'm posting it here as it comes from the start_http_server, since thats what I use to start the server, otherwise I would have checked the "/usr/lib64/python2.7/socket.py".

Here is my service's unit systemctl file:

[Unit]
Description=Dead Exporter
After=local-fs.target network-online.target network.target
Wants=local-fs.target network-online.target network.target
[Service]
WorkingDirectory=/net/systems/tools/deadExporter
#User=blah
Type=simple
Restart=on-failure
RestartSec=30
ExecStart=/net/systems/tools/deadExporter/dead.py
[Install]
WantedBy=multi-user.target

I'll show my code and I'm pretty much sure its related to how I build the name == "main": but I cant put my finger on it.

I added the time.sleep(1) as without the while loop, I cant keep the server up, I"m guessing its the right way to do so!??

I learned the the Metrics build in to be in the file scope. So I hope thats fine.

Can anyone tell me if you see something wrong?

Code:

import sys
import time
from prometheus_client import Counter
from prometheus_client import start_http_server
from prometheus_client import CounterMetricFamily
from prometheus_client import REGISTRY

class DeadCollector(object):
    def collect(self):
        print('FIRE!')
        c = CounterMetricFamily("woohoo", 'Woohoo is the greatest', labels=['stat'])
        c.add_metric(['statVal'], 0.0)
        yield c


timer = time.time()
REGISTRY.register(DeadCollector())
print('\nFinished dead in {:.2f}sec'.format(time.time() - timer))


if __name__ == '__main__':
    # start the server
    start_http_server(9366)
    try:
        while True:
            time.sleep(1)

    except KeyboardInterrupt:
        print('\nYou killed Kenny, you bastard!\n')
        sys.exit()

One last thing, The serer runs, the error comes only from the systemctl service unit, however... you see that "FIRE!" print, when I run this locally, just a simple (shell)

clear;python dead.py

everytime I refresh the browser, I get the FIRE twice! once as I press reload and once when its done.

I am missing something again? Shouldn't it run just once?

Any help will do, Thank you!