reduce wait time because (1) we don't know how long will the lease expire and (2) another client might access the same file (i.e, we did not crash).
reduce wait time because (1) we don't know how long will the lease expire and (2) another client
might access the same file (i.e, we did not crash).

pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable