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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