David Lewison <dave.lewi...@gmail.com> writes:

> That said, I'm running WeeWX v3.7.1 on a RasPi model B using Debian 
> pre-packaged install. Weather station is a Davis Vantage Pro with USB data 
> logger. It has been running pretty much flawlessly for 3 years, generating 
> reports every 10 minutes and uploading to a webpage. Occasionally, it'll 
> stop updating, but restarting the RasPi always fixes it. The other day, we 
> had a violent storm that knocked out power for 4 hours. When everything 
> came back up, WeeWX wouldn't update no matter what I did. 

My advice:

  tread lightly until you get advice from others more clueful than me

  immediately, copy the archive file to someplace else in the
  filesystem, then to a different computer, and ideally to an offsite
  computer.  Hopefully you have been doing backups anyway.

  check that time sync is ok on your machine (logs don't suggest this is wrong)

  make sure you aren't running multiple copies of weewx (I see no hints
  of this, but am a fan of doing the easy checks anyway)

  read the following:
    http://www.weewx.com/docs/utilities.htm#wee_device_utility
    http://www.weewx.com/docs/hardware.htm#vantage_notes
    
https://github.com/weewx/weewx/wiki/Troubleshooting-the-Davis-Vantage-station

  I am guessing from your logs -- but wait for someone else to confirm
  -- that you are having a corruption issue and that you should be using
  --dump.

  re-read the hint #1 above about making backups and really do it

  do an sqlite integrity check (with weewx stopped)
    sqlite3 weewx.sdb 'pragma integrity_check;'

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