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Webtags (preserving history): Difference between revisions
Webtags (preserving history) (view source)
Revision as of 06:29, 1 August 2021
, 06:29, 1 August 2021→MX release 3.12.0 (beta build 3134) onwards: clarify
m (→Recent History: Update for 3.12.0) |
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====MX release 3.12.0 (beta build 3134) onwards==== | ====MX release 3.12.0 (beta build 3134) onwards==== | ||
The recent history is stored in a SQLite3 database table [[cumulusmx.db#Release 3.12.0 onwards|RecentData]] and therefore if you stop MX, the recent history data up to the time MX stopped has become persistent, and is available when MX starts again. Thus the charts, and internal calculations, mentioned above can make use of recent history data from the previous | The recent history is stored in a SQLite3 database table [[cumulusmx.db#Release 3.12.0 onwards|RecentData]] and therefore if you stop MX, the recent history data up to the time MX stopped has become persistent, and is available when MX starts again. Thus the charts, and internal calculations, mentioned above can make use of recent history data from the previous Cumulus session. | ||
When you do restart MX, if your weather station can store historic data, then its logger is read during the restart as archive data for the period since MX was last running until the time of restart, and obviously only available at the resolution of that historic data (be it every 10 minutes, or every 30 minutes or whatever). | When you do restart MX, if your weather station can store historic data, then its logger is read during the restart as archive data for the period since MX was last running until the time of restart, and obviously only available at the resolution of that historic data (be it every 10 minutes, or every 30 minutes or whatever). | ||