On Fri, Nov 25, 2016 at 09:08:37AM +0100, Florian Weimer wrote: > I think you misunderstood what I was asking (see the start of the thread). > I need to support Byzantine readers which do not follow the locking > protocol. Based on the documentation, LMDB uses locks to implement MVCC and > prevent premature page reuse.
There's a good use case for an LMDB-like COW DB such that readers need never lock. That would require vacuuming by writing a new file and renaming it into place, which is a trade-off. One of the problems with LMDB's locks is that readers need write permission to the lock file, IIRC :( but at least it's a separate file. Nico -- _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
