Unless you are running some unusual service, there should be no situations
where weewx is modifying the database between archive events.

-tk

On Tue, Nov 12, 2019 at 7:48 AM WindnFog <[email protected]> wrote:

> Reading the list archive, the documentation, and searching the Internet
> about the "best" way to backup SQLite databases, I conclude cold backups
> are safer than a "hot" cp or rsync. That said, I am doing a hot rsync
> (takes 2-3 seconds) to another LAN system and a cloud server at 01:18 AM
> daily. Since I only write archive records to the database at XX:00, XX:05,
> XX:10, etc., I *think* this is safe. The documentation says:
>
>
> "Do not make a copy of the SQLite database while in the middle of a
> transaction! Schedule the backup for immediately after an archive record is
> written, and then make sure the backup completes before the next archive
> record arrives. Alternatively, stop WeeWX, perform the backup, then restart
> WeeWX."
>
>
> I prefer not to stop/start weewx every day, but I will if necessary. Are
> their situations where some part of weewx could be modifying the database
> between the archive writes every 5 minutes? I have done a couple of
> restores over the past 4-5 years with no issues, but am I playing with
> fire?
>
>
> What are you guys doing vis-à-vis weewx.sdb backups?
>
>
> - Paul VE1DX
>
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