OK, as far as I can tell cmon 0.16 is doing what it should and it should
work fine with a RPi/Stretch. Clearly though something is not working
correctly. Cmon is mildly complex with not a lot of debug output so in the
absence of Matthew's input could you try making a change to the cmon code.
First up make a copy of cmon.py just in case:
$ sudo usr/share/weewx/user/cmon.py usr/share/weewx/user/cmon_orig.py
Then edit usr/share/weewx/user/cmon.py and around line 711 change:
def save_data(self, record):
"""save data to database"""
self.dbm.addRecord(record)
to:
def save_data(self, record):
"""save data to database"""
loginf("cmon archive record=%s" % (record,))
self.dbm.addRecord(record)
Save cmon.py and restart WeeWX. Cmon will now log the archive record it is
about to save. Next time cmon causes a crash post the log and we should be
able to marry up the value in the stack trace with a field in the cmon
archive record.
Gary
On Tuesday, 7 May 2019 16:50:13 UTC+10, Redanman wrote:
>
> My system configuration is :
>
> Weewx version 3.9.1 running on a Raspberry Pi Zero
> Aercus Weathersleuth weather station with Weewx using Interceptor driver
> over local network
> PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
> NAME="Raspbian GNU/Linux"
> VERSION_ID="9"
> VERSION="9 (stretch)"
> ID=raspbian
> ID_LIKE=debian
> Kernel = 4.14.62+ #1134 Tue Aug 14 16:58:07 BST 2018 armv6l GNU/Linux
> cmon version = 0.16
>
> Hope that helps.
> Mike
>
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