[PATCH 00 of 15] upstream keepalive patch queue

[Maxim Dounin]

Hello!

Here is the keepalive patch queue, posting it here for further 
review and testing.  Note this series is for nginx 1.1.1, first 2 
patches were already committed into trunk (just skip them if you are 
working with svn trunk).

This series includes multiple fixes for problems found during 
testing since last post:

  - https connection caching support;
  - better detection of connections which can't be cached;
  - cpu hog in round-robin balancer;
  - segmentation fault when using with proxy_cache/fastcgi_cache;

FastCGI keepalive support now requires "fastcgi_keep_conn on;" in config. 
Without the directive previous behaviour is preserved to make patches less 
intrusive.

Upstream keepalive module is included as a last patch, it's compiled in by 
default.

All patches may be found here:
http://nginx.org/patches/patch-nginx-keepalive-full-4.txt

Maxim Dounin