Apache HTTP Server Version 2.4
Apache Module mod_lbmethod_heartbeat
| Description: | Heartbeat Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer |
|---|---|
| Status: | Experimental |
| Module Identifier: | lbmethod_heartbeat_module |
| Source File: | mod_lbmethod_heartbeat.c |
| Compatibility: | Available in version 2.3 and later |
Summary
lbmethod=heartbeat uses the services of mod_heartmonitor to balance between origin servers that are providing
heartbeat info via the mod_heartbeat module.
This modules load balancing algorithm favors servers with more ready (idle) capacity over time, but does not select the server with the most ready capacity every time. Servers that have 0 active clients are penalized, with the assumption that they are not fully initialized.
Bugfix checklist
See also
HeartbeatStorage Directive
| Description: | Path to read heartbeat data |
|---|---|
| Syntax: | HeartbeatStorage file-path |
| Default: | HeartbeatStorage logs/hb.dat |
| Context: | server config |
| Status: | Experimental |
| Module: | mod_lbmethod_heartbeat |
The HeartbeatStorage directive specifies the
path to read heartbeat data. This flat-file is used only when
mod_slotmem_shm is not loaded.