[Patch] SO_REUSEPORT support from master process

[Valentin V. Bartenev]

On Thursday 18 September 2014 20:05:39 Lu, Yingqi wrote:
> Dear All,
> 
> Here is the updated patch for SO_REUSEPORT support enablement on Linux OS
> (attached below). The changes in this version are:
> 
> 1. Solve the issue with "binary upgrade on the fly" feature. Thanks to
> Sepherosa Ziehau for his feedback! With this version of patch, there is no
> issue or connection loss during the binary upgrade. I tested on RHEL 6.5
> (with kernel 3.13.9) and CentOS 7. Both are working fine. The new master
> process inherited all the previous listen sockets during the upgrade and new
> children processes inherited from the new master. Also, the workload data
> show there is no connection loss or performance impact during the binary
> upgrade.
> 
> 2. Make the duplication of listen sockets happen in the function
> ngx_http_init_listening instead of ngx_init_cycle. 
> 
> Please review it and let me know your questions and comments. Thanks very
> much for your time reviewing the patch.
[..]

How do you deal with changed number of online cpus since last reload?

Please note, that there's no way for a patch to be approved with
such number of style issues.  You should consult with: 
http://nginx.org/en/docs/contributing_changes.html#formatting_changes

  wbr, Valentin V. Bartenev