Improved connection draining with small number of connections.

Closing up to 32 connections might be too aggressive if worker_connections
is set to a comparable number (and/or there are only a small number of
reusable connections).  If an occasional connection shorage happens in
such a configuration, it leads to closing all reusable connections instead
of gradually reducing keepalive timeout to a smaller value.  To improve
granularity in such configurations we now close no more than 1/8 of all
reusable connections at once.

Suggested by Joel Cunningham.
2 files changed
tree: 20c15be390173fe2638da269b29bc9c7bc449d04
  1. auto/
  2. conf/
  3. contrib/
  4. docs/
  5. misc/
  6. src/
  7. .hgtags