teor:
It takes about a week for a TLS connection to close if there is traffic on it, or a few minutes if there is no traffic:
...
Old TLS connections in tor are marked not to be used for new circuits after 7 days in connection_or_group_set_badness_.
Thanks for the clarification! Though I can't see how do these two intersect. What is a path for TLS to close in "a few minutes if there is no traffic"? If there is no traffic (no circuits) on top of a TLS connection it still can be used in next 7 days, right?
-- Ivan Markin