Ludovic Courtès skribis: > The are several possible causes of contention: (1) database opened too > many times, (2) database kept opened for too long, and (3) sqlite > mishandling contention somehow. Commit fe5de925aa0f2854a679cebdea02b03cac561c8f should make deduplication more efficient (it was an embarrassing bug…), partly addressing #2. Ludo’.