Thanks for help. As a novel sqlite user, it seems I need more. According to documents, sqlite_busy will happen if new reader cannot get shared_lock or new writer cannot get reserved_lock. I didn't see sqlite_busy error from my application.
My usage is that: single process, multi-thread, multi-database files multi-database files I divided the tables into 2 database files to "increase" concurrency. A thread may open two database file at same time, but two database never appear in one sql statement. Is this likely to cause any issue? about "one connection per thread" Does this mean I need to close the current database connection before I can make the next connection to same database file even through they are not shared? I tend to use short-lived database connections locally defined within each function. Though it is not shared, it seems there may be cases where more than 1 database connections are held (in nested function calls). Will this cause any issue? On Wed, Mar 17, 2010 at 11:05 AM, Pavel Ivanov <paiva...@gmail.com> wrote: > http://www.sqlite.org/faq.html#q5 > http://www.sqlite.org/lockingv3.html > > Pavel > > On Wed, Mar 17, 2010 at 11:46 AM, imin imup <imini...@gmail.com> wrote: > > Hello users, > > > > I'm using sqlite 3.6.12 in muti-threaded application. I'm getting sqlite > > errors occasionally. > > The error message is > > > > *sqlite error: database is locked* > > > > could someone explain to me what happened and what to be done? or point > me > > to a document on how to fix this? > > > > Best > > > > Imin > > _______________________________________________ > > sqlite-users mailing list > > sqlite-users@sqlite.org > > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
