[Pymilter] milter multiprocess (or multithread)

[Marco]

Hello Stuart,

  thank you very much for your detailed answer.

This is all clear now. I'm enjoying with pymilter to write my milter 
with multiprocess/multithread for Redis and submit some data through 
http rest api.

In my milter I decide to leave the choice to use threads or processes 
for above jobs by configuration.

All works fine as expected. But with *threads* only, it seems that the 
milter eats the sigterm signal. To be fast, if I have this 
milter-template.py:

====================================================================
if False:
   from multiprocessing import Process as Thread, Queue
else:
   from threading import Thread
   from queue import Queue
[...]
   logq.put(None)
   bt.join()
   print("%s bms milter shutdown" % time.strftime('%Y%b%d %H:%M:%S'))

if __name__ == "__main__":
   main()
====================================================================

when I terminate the milter, the "bms milter shutdown" never prints to 
stdout.

This is just a "cosmetic" issue, but it should nice to print a "milter 
shutdown" when the milter stops as expected.

If I well understand this is a limitation from libmilter interface. I 
don't understand how to avoid this limit really. For instance, could I 
terminate the milter sending a "stop" command?
How could I read or write a "stop", or "reload" command to the milter 
socket? Using the Milter api I can only manage body, headers, and other 
standards milter commands.

Do you have any hints?

Thank you very much

Marco

On 12/11/2019 18:56, Stuart D. Gathman wrote:
> On Tue, 12 Nov 2019, Marco wrote:
> 
[...]
> You already get a new thread for every connection out of the box.  You
> almost certainly don't want to create a process for each connection.
>