Bug#821111: nginx: Failure to remove socket due to Debian's method of stopping
This bug is still present for me in version 1.14.1-1~bpo9+1.
Bug#821111: nginx: Failure to remove socket due to Debian's method of stopping
SIGQUITs are still being sent, and sockets are not being cleaned up, as of 1.10.3-1+deb9u1 and 1.13.3-1~bpo9+1.