@Tom
thanks - that's very helpful information
taking this piece of information into account I think that all options
needed are covered
On 01.07.2025 20:54, Tom Keffer wrote:
In case it's useful, let me note that StdArchive has an undocumented
"no_catchup" option. If False, it will call genStartupRecords() and
ask for all records since the last timestamp in the database. If True,
then the catch up is not done.
It should probably be documented.
-tk
On Tue, Jul 1, 2025 at 11:42 AM 'Rainer Lang' via weewx-user
<[email protected]> wrote:
after some code inspection (and my understanding of Python) it
appears (see catchup_factory(self) line 4897)
that at weewx startup, if a device with SD card is available under
the IP address from weewx.conf, the EcowittDeviceCatchup class is
executed.
If not, provided the API/APP key and MAC address info is
available, the backfill ("catchup") via ecowitt.net
<http://ecowitt.net> is initiated.
So far there is no weewx.conf option available to keep the SD card
backfilling/catchup from being executed.
SD card backfill takes precedence over ecowitt.net
<http://ecowitt.net> backfill.
The ecowitt.net <http://ecowitt.net> backfill/catchup can be
avoided by not providing the needed info (APP/API keys/MAC).
On 01.07.2025 20:02, Rainer Lang wrote:
the ecowitt.net <http://ecowitt.net> backfill and the SD card
backfill are mutually exclusive/excluding each other
in addition, the MAC address of the console in question is needed
- also for the SD card download the MAC address is needed
=> a nested setup (as e.g. done in CumulusMX) will make sense
1. activate ecowitt.net <http://ecowitt.net> by providing MAC,
APP and API keys
2. if 1. is activated AND SD card is activated (MAC info
available), then SD card backfill takes priority
=> something like a SD card backfill switch needs to be
considered - more code inspection needed
3. SD card backfill should be possible without providing an
APP/API key
also to consider (unless already done --> code inspection):
the ecowitt.net <http://ecowitt.net> lowest data resolution is 5
minutes, the SD card resolution (if so chosen) goes down to one
minute
=> if you have a 300 second/5 minute archiving interval, the SD
card data might have to run through the loop and accumulation
process
for all records whereas from ecowitt.net <http://ecowitt.net>
there is a 1:1 filling of the loop and archive table ("dictionary").
result: four more switches/options/parameters needed
1. app_key = key
2. api_kep = key
3. mac_address = MAC
4. SD_card = yes/no
On 01.07.2025 18:54, vince wrote:
Quick glance at the code says you need to add "api_key" and
"app_key" to the [EcowittHttp] section in weewx.conf to get
around that error
There are also some retries and tunings around line 3944 in the
init routine, but I don't see a setting for "/no catchup vs.
this way vs. that way vs. these multiple ways/" so to speak.
There are also debug settings around line 688 that can be enabled.
But.... if you look around line 3144 it seems to indicate
catchup is not actually in the code at this time. Just the
plumbing towards that goal.
I guess enable all the debugging and do a test and see what
happens (?)
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