Yes, the problem was the call to engine.dispose() Thanks!
On Wednesday, September 28, 2016 at 5:11:59 PM UTC-4, Mike Bayer wrote: > > > > it would appear that either the ThreadExecutorPool is starting more > threads than your Postgresql database has available connections, or your > engine.dispose() is leaving PG connections lying open to be garbage > collected. A single Engine should be all that's necessary in a single > process. > > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.