Feedback Agent

The loadbalancer.org feedback agent is used to dynamically set real service weight depending on it's available system resources in HAProxy.

For an in-depth look into how our feedback agent works please refer to this blog post: Open Source Windows service for reporting server load back to HAProxy (load balancer feedback agent).

Features

• CPU metric
• RAM metric
• TCP connections metric
• Read/reload from config
• Halt/Down/Normal Status States

Prerequisites

• Go v1.9 or later
• Windows

Build

Please follow these instructions to build the feedback agent:

go get -d

go build

XML

<xml>
  <Cpu>
    <ImportanceFactor value="1" />
    <ThresholdValue value="100" />
  </Cpu>
  <Ram>
    <ImportanceFactor value="0" />
    <ThresholdValue value="100" />
  </Ram>
  <TCPService>
    <Name value="HTTP" />
    <IPAddress value="*" />
    <Port value="80" />
    <MaxConnections value="0" />
    <ImportanceFactor value="0" />
  </TCPService>
  <ReadAgentStatusFromConfig value="False" />
  <ReadAgentStatusFromConfigInterval value="5" />
  <AgentStatus value="Normal" />
  <Interval value="10" />
  <Port value="3333" />
  <ReturnIdle value="true" />
  <LogLevel value="INFO" />
</xml>

Support

If you require assistance with our feedback agent please contact us at support@loadbalancer.org

License

GNU General Public License, version 2