Apache Module mod_heartbeat 384r4p

Available Languages: fr

Description:	Sends messages with server status to frontend proxy
Status:	Experimental
Module Identifier:	heartbeat_module
Source File:	mod_heartbeat
Compatibility:	Available in Apache 2.3 and later

Summary 6m2os

Proxy.

mod_heartbeat itself is loaded on the origin server(s) that serve requests through the proxy server(s).

To use mod_heartbeat.

Topics 2c136y

Consuming mod_heartbeat Output

Directives 1a4l6m

HeartbeatAddress

Bugfix checklist 4i2533

Consuming mod_heartbeat Output 355z3x

Every 1 second, this module generates a single multicast UDP packet, containing the number of busy and idle workers. The packet is a simple ASCII format, similar to GET query parameters in HTTP.

An Example Packet 3o46x

v=1&ready=75&busy=0

Consumers should handle new variables besides busy and ready, separated by '&', being added in the future.

HeartbeatAddress Directive 4ay5

Description:	Multicast address for heartbeat packets
Syntax:	`HeartbeatAddress addr:port`
Default:	`disabled`
Context:	server config
Status:	Experimental
Module:	mod_heartbeat

The HeartbeatAddress directive specifies the multicast address to which HeartbeatListen on a frontend proxy system.

HeartbeatAddress 239.0.0.1:27999