If you care about data integrity, the $50 for a modest UPS is money well spent!
On Wed, Oct 16, 2019 at 5:00 PM gjr80 <[email protected]> wrote: > Yes, the price you pay for using software record generation. Also, I > forgot about no_catchup being introduced in 3.9.1. That changes the logic > during a startup catchup, now software record generation will also get > caught up in the 'timestamp less than final' issue unless you set no_catchup > = False. But then, as you say, you will miss out on any catchup records > in timea when you do not have corrupt station memory. > > Guess that's why I have a UPS as well :) > > Gary > > On Thursday, 17 October 2019 09:35:21 UTC+10, Thomas Keffer wrote: >> >> Immune, yes, but you also won't get any archive records stored on the >> logger while your computer is down! >> >> On Wed, Oct 16, 2019 at 4:33 PM gjr80 <[email protected]> wrote: >> >>> One other thing to keep in mind; the de facto standard mode of operation >>> of a Davis station under WeeWX is to use hardware record generation, in >>> other words WeeWX obtains and stores archive records from from the >>> console/logger. WeeWX can also operate using software record generation >>> where only loop packets are obtained from the logger/console and archive >>> records are synthesised by WeeWX from this data. When the logger >>> experiences corrupted memory/temporal displacement it almost always >>> continues to emit loop packets but emits old archive records. So when >>> operated in software record generation mode WeeWX will essentially be >>> immune from the corrupted station memory issue. Similarly, other PWS >>> software that only use loop packets will not be affected by the corrupted >>> station memory issue. >>> >>> I don't see this as a WeeWX bug, rather a limitation of operating in >>> hardware record generation mode that can be mitigated by reliable power and >>> clock. >>> >>> Gary >>> >>> -- >>> 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 [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/e4475612-bb76-4fd2-8e53-dc00286f878d%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/e4475612-bb76-4fd2-8e53-dc00286f878d%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/d91c9ec6-6c02-481d-ac73-54675c772b20%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/d91c9ec6-6c02-481d-ac73-54675c772b20%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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zECKhp6CP6WybUnYWivZzi-wQG3p03MZ39A_pC8Z4qyZeA%40mail.gmail.com.
