[Libreoffice-bugs] [Bug 108325] New: [FILESAVE: AUTOSAVE] unreliable document restore upon crashes

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108325

            Bug ID: 108325
           Summary: [FILESAVE: AUTOSAVE] unreliable document restore upon
                    crashes
           Product: LibreOffice
           Version: 5.3.2.2 release
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: libreoffice2348 at web.de

This is major because it caused data loss, and also an enhancement request.

Hello.
This applies to Calc and Writer alike.

I have checked the option that my documents will be saved every minutes.
After a BSOD, hours of work were lost as LibreOffice was unable to restore my
document. I searched the whole hard drive for recently changed data. 
I did a test by killing the .bin file in taskmanager, and autosave did work
then. However sometimes it does NOT seem to work and the user is left with NO
fallback if relies on what the option advertises by stating that data will be
saved every few minutes. A decent Office Suite should autosave every minute,
without any impact / stuttering whilst editing, and not require to user to
manually save at any point in time (which is very annoying). In fact, many Apps
in iOS, and also my Windows Text editor of choice, autosave INSTANTLY.
I have had problems with auto-restore with OpenOffice (sic) too, years ago, and
I really think that this feature needs to be as robust as possible.
I would like to see several fully functional backup files that are not more
than 1-2 minutes old, in the libre office system folders, so users always have
a simple fallback if any kind of corruption occurs. For example:
mytable.odt.bak1 (0-1 minute old)
mytable.odt.bak2 (1-2 minutes old)
mytable.odt.bak3 (2-3 minutes old)

every 1 minute, bak1 is renamed to bak2, bak2 to bak3, and a new bak1 is
created.

(this could be done in the background by using accumulated delta data so
ediging of the currently opened file will not be impacted - I am not a
programmer, I hope you get what I mean)

This system (bak1/bak2/bak3) will also allow backup programs to access the
current and backup files and create more sophisticated versioned backups, such
as e.g.
1 minute ago
2
5 
10
20
30
40
60
2 hrs
4 hrs
8 hrs
12
16
...
7 days
8 days
9 days
etc.

please take this seriously. users must be protected from data loss at all cost.
I found several users who seem to have had similar issues. please don't ignore
this because it goes against some "philosophy" or because it is not "elegant"
or because users should "press ctrl-s". what counts is that even the most
ignorant users need to protected. the data lost can be invaluable in some
cases. 

thank you.

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