Be sure to read the wiki notes on *Moving the wview database <https://github.com/weewx/weewx/wiki/Moving-the-wview-database#mysql>*.
Welcome to WeeWX! You may be the last of the wview users! On Sat, May 11, 2024 at 8:42 PM P Black <clapeyron....@gmail.com> wrote: > Tom, > > Thank you. It gives me some hope that the time warp will not be an issue > with the new system. The old used a Raspberry PI 3B with an added clock > and the new is a RP5 with built-in clock. I do use a battery backup and > have not noticed any correlation to voltage drops and the date mix-up. > Should have some time in the next couple weeks to load the software and > begin transitioning the database. > > Thanks, > Pat > > On Friday, May 10, 2024 at 4:36:09 PM UTC-4 Tom Keffer wrote: > >> I have never seen the Vantage emit a bad date. What does happen is either >> >> 1. The computer lacks a clock, so it synchronizes the Vantage to the >> wrong time. There is a check in WeeWX to avoid starting up with a clock >> that's really off, but the best protection is to install a real-time clock >> in the computer. >> >> 2. The logger memory gets corrupted. This is pretty rare, but seems to be >> triggered by power outages (although not always). The symptom is that WeeWX >> fails to download any new data, so your webpage doesn't change. See the >> Wiki article *Wiki generates HTML pages, but does not update them >> <https://github.com/weewx/weewx/wiki/Troubleshooting-the-Davis-Vantage-station#weewx-generates-html-pages-but-it-does-not-update-them>* >> for >> details. This sounds the closest to the situation you describe, but with >> WeeWX it does not result in a record being downloaded with a bad date. >> Perhaps wview does something different in this situation. The problem can >> always be solved by clearing the logger memory. If you do a memory dump >> first, it does not result in loss of data. >> >> Hope that answers your question. >> >> >> On Fri, May 10, 2024 at 11:37 AM P Black <clapey...@gmail.com> wrote: >> >>> Hello, >>> >>> I am in the process of migrating from wview to weewx. Yes I know I am >>> very late to the game. >>> >>> The issue I have with wview is that the Davis Vantage Pro 2 periodically >>> generates a future date that then hangs any further data collection. The >>> fix usually involves: >>> >>> sudo service wview stop >>> vpconfig /dev/ttyUSB0 cleararchive >>> remove the bad data from the sqlite and mysql databases >>> sudo service wview start >>> >>> Then if I am late to catch this issue, I have a lot of missing data. >>> >>> I plan to start installing weewx in the next few days on a raspberry pi >>> 5 with a 1TB NVMe and run using the mysql (mariadb) database choice after >>> migrating my existing database to the new setup. >>> >>> Assuming that the date issue is a Davis glitch and not wview, is there a >>> software check in weewx to determine if the date is wrong and either delete >>> the data for that time or correct it to the correct time and then log? I >>> assume that the clear archive would also have to be automatically performed >>> (how is that done by software) >>> >>> PS: I have tried the usual shutdown the Davis, remove batteries and >>> still the bad date occasionally occurs. The Davis is the wireless version >>> purchased 2011. Also, it must know when I am not around as the bad event >>> occurs during my away times. >>> >>> Stay healthy, >>> Pat >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "weewx-user" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to weewx-user+...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/fe2e2e08-bf5b-4da4-a511-7926ede968afn%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/fe2e2e08-bf5b-4da4-a511-7926ede968afn%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/0ba660b1-cb93-4efb-aeb8-189a7266aa6dn%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/0ba660b1-cb93-4efb-aeb8-189a7266aa6dn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEAghACNcs10YDwMJ%3Dacpn1%2Bv5chTkLf5fJGzSYuOb%3Dk2w%40mail.gmail.com.
