I figured the lock was in the db, but wasn’t certain. I just tested with my current data file:
Clean exit via GnuCash > Quit GnuCash Copy & Rename file to `test-1234.gnucash` Re-open GnuCash File > Open > `test-1234.gnucash` The file opened fine, save none of the open tabs from when I exited were re-opened. (doesn’t bother me any, and might even be intended behavior, but it confirms what mc found in that respect) However, being on a Mac as you know I can't test double-clicking the renamed file to open it, if that is what mc is doing. Not sure if that is where the problem lies or if it was an un-clean shutdown after saving that other file as surmised. Regards, Adrien > On Apr 20, 2019, at 9:53 AM, John Ralls <jra...@ceridwen.us> wrote: > > > >> On Apr 20, 2019, at 5:58 AM, mc <m...@privmgt.com> wrote: >> >> Config: >> gnucash 3.5 clean install. >> (X)ubuntu Linux 18.04 >> gnucash files saved as sqlite. >> >> Am new to gnucash and testing it. >> >> I keep several versions of a gnucash file, >> saved with names like <file>-<date>-<id>.gnucash >> >> After cleanly exiting gnucash by a normal Quit,, >> I may try to open an earlier saved version. >> I frequently get the message: >> >> GnuCash could not obtain a lock for .../<filename>.gnucash >> the database may be in use by another user, in which case you should not >> open the database. >> What would you like to do? >> open read only / create new file / open anyway / quit >> >> I have checked that gnucash is not running, >> and there is no lock file to be found. >> I open it anyway, and it is without problems, >> other than my tabs have disappeared and there is only the default "Accounts" >> tab. >> >> In fact there is no .LCK file even when gnucash has a file opened. >> >> So: >> a. has gnucash changed the locking mechanism in v3 >> or do sqlite files not use a locking mechanism? >> >> b. is there a possible issue with this locking mechanism? > > The SQL locks are in a table inside the database, not in a separate file. The > file will be locked if you didn't properly quit GnuCash the last time you had > *that file* open. > > The locking mechanism itself hasn't changed, but the SQL/DBI backend got a > complete rewrite into C++ for GnuCash 3.x. > > It's a computer program. Of course it's possible that there's a problem, and > since you're doing something a bit different from what everyone else does you > might be the first to have found it. How are you creating these "earlier > saved versions"? > > Regards, > John Ralls _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user If you are using Nabble or Gmane, please see https://wiki.gnucash.org/wiki/Mailing_Lists for more information. ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All.