Yesterday evening I had a problem with a machine that was locked up (not due to BOINC) and it required a "hard rest"

After this when rebooting, BOINC has forgotten all stats and started fresh from yesterday. I had "save stats days" in cc_config set to 365.

It did not lose any work or error any tasks.

Is there a way to prevent this happening if BOINC is not cleanly shutdown. I am running 7.8.3

Backup, backup, backup. That's the only way to do this, daily backups.

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Where does BOINC keep its stats?

Where does BOINC keep its stats?

Data folder, separate file 'statistics_url.xml' for each project url.

Only one file is kept for each project, unlike client_state.xml which is protected by a file, _prev, _next rotation. A crash while the file is open for writing is likely to lead to corruption and data loss, so daily backups just after midnight are the only solution.

OK thanks, I don't often lift the lid on the inner workings of BOINC. I see the structure and this machine indeed has it first entry yesterday,whereas my other cruncher goes back to Jan 2017

I suppose in theory it might be possible to recreate the approximate data seeing as this machine has only been crunching for 3 weeks.