Apache HTTP Server Version 2.3
Apache HTTP Server Version 2.3
Available Languages: en
| Description: | Pending Request Counting load balancer scheduler algorithm for mod_proxy_balancer |
|---|---|
| Status: | Extension |
| Module Identifier: | lbmethod_bybusyness_module |
| Source File: | mod_lbmethod_bybusyness.c |
| Compatibility: | Split off from mod_proxy_balancer in 2.3 |
This document is still under development.
This module provides no directives.
Enabled via lbmethod=bybusyness, this scheduler keeps
track of how many requests each worker is assigned at present. A new
request is automatically assigned to the worker with the lowest
number of active requests. This is useful in the case of workers
that queue incoming requests independently of Apache, to ensure that
queue length stays even and a request is always given to the worker
most likely to service it fastest.
In the case of multiple least-busy workers, the statistics (and
weightings) used by the Request Counting method are used to break the
tie. Over time, the distribution of work will come to resemble that
characteristic of byrequests.
Available Languages: en
