To anyone using (or considering) the nginx-sflow-module for monitoring,
then please use version 0.9.9 or later. Previous versions generated
incorrect sFlow output in deployments with multiple worker-processes.
Symptoms included spurious spikes in Ganglia graphs.

This sFlow-HTTP output is the same as you get from the corresponding
agents for apache, tomcat, node.js and haproxy, as well as hardware
load-balancers from F5 and A10. However it can be extended, so if
is anything you would like to see added then please let me know, or
post to
Developers Discussion Board @