# About the least\_conn (http://nginx.org/r/least\_conn) load balancing option and php-fpm

**URL:** <https://www.ruby-forum.com/t/about-the-least-conn-http-nginx-org-r-least-conn-load-balancing-option-and-php-fpm/223724>\
**Category:** NGINX\
**Created:** [October 15, 2012, 5:58pm UTC](https://www.ruby-forum.com/t/about-the-least-conn-http-nginx-org-r-least-conn-load-balancing-option-and-php-fpm/223724 "2012-10-15T17:58:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![aris](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/258eb7/32.png) [@aris](https://www.ruby-forum.com/u/aris)\
**Post date:** [October 15, 2012, 5:58pm UTC](https://www.ruby-forum.com/t/about-the-least-conn-http-nginx-org-r-least-conn-load-balancing-option-and-php-fpm/223724/1 "2012-10-15T17:58:15Z")

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Hello,

I’m testing the least\_conn option for php-fpm.

I’m curious whether what I should set  
“listen.backlog” in php-fpm.conf settings?

Should I try listen.backlog=0? or some other setting for least\_conn load  
balancing?

Thanks.