nope, adding s.shutdown() call didn’t help, still timing out

now i’ll try increasing [GW1000]socket_timeout to 59s to see if it blows even 
that long a period
⊣GE⊢

> On 28 May 2023, at 8:10 pm, Graham Eddy <[email protected]> wrote:
> 
> the greater detail shows it is timing out on the s.connect() call, after 
> going long periods without such timeouts. i have noticed that we open and 
> close the socket quite rapidly at times, so i wonder if there is some python 
> garbage-collect lag or TCP FIN lag manifesting
> 
> i see in python manual
> Note close() <https://docs.python.org/3/library/socket.html#socket.close> 
> releases the resource associated with a connection but does not necessarily 
> close the connection immediately. If you want to close the connection in a 
> timely fashion, call shutdown() 
> <https://docs.python.org/3/library/socket.html#socket.socket.shutdown> before 
> close() <https://docs.python.org/3/library/socket.html#socket.close>.
> so i have experimentally inserted a s.shutdown() call just before the 
> s.connect() call. we’ll see if it makes any difference...
> ⊣GE⊢
> 
>> On 28 May 2023, at 5:30 pm, Graham Eddy <[email protected]> wrote:
>> 
>> i should also have mentioned that this same weewx server also hosts another 
>> instance of weewx, using serial vantage driver, that is having no such 
>> problems
>> ⊣GE⊢
>> 
>>> On 28 May 2023, at 5:28 pm, Graham Eddy <[email protected]> wrote:
>>> 
>>> v0.5.0b5 is in place and i continue to get timeouts and restarts.
>>> (logging issue is resolved; i am preferring to continue in this thread for 
>>> situational continuity e.g. logs are all relevant)
>>> 
>>> in brief, at intermittent times (less than an hour apart to several days 
>>> apart), i get three no-response exceptions so a crash/restart of driver.
>>> until several weeks ago it worked happily without timeouts.
>>> i have moved to different power source; was on UPS and now is not.
>>> i have replaced old gw1000 unit with new gw2000 unit with no noticeable 
>>> improvement.
>>> i have changed [GW1000]socket_timout to 10s, then to 6s to avoid 
>>> unfortunate congruity with polling_interval=10s, with no noticeable change
>>> 
>>> the only environmental change i can think of was introducing dnsmasq for 
>>> dns/dhcp into home office network but that was months ago, but i did drop a 
>>> secondary, non-authoritative dsnmasq server on the weewx server somewhere 
>>> about this timeframe (hence my idle wonder about dhcp lease interference)
>>> 
>>> i have now instrumented the driver with lots more debug statements around 
>>> every step of sending command & receiving response with gw1000, set the 
>>> [GW1000]socket_timeout back to 2s, and wait to see what i learn from this 
>>> extra level of detail.
>>> cheers
>>> ⊣GE⊢
>>> 
>>>> On 26 May 2023, at 8:03 pm, gjr80 <[email protected]> wrote:
>>>> 
>>>> v0.5.0b5 has been released for close on a year, it would essentially have 
>>>> been v0.5.0 but never got around to releasing it. It should be stable
>>> 
>> 
>> 
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