Gnats database locked error

[Walter Faleiro]

Hi ,
We have been using gnats-3.1.113 for our bug tracking for a while. Of
late the gnats database gets locked. When a user tries to create or edit
a PR, it gives the messages GNATS database is locked. It unlocks after
we execute the command pr-edit --unlockdb.
Is there any way to test maybe via a script run at intervals, to test if
the Database is locked and if yes then execute the command pr-edit
--unlockdb.
That said, I am also eager to know the cause of this frequent lock.

Thanks and regards
--Walter