Finding out number of healthy backends

[Glen Kelly]

A decision was made not to run the console, one less avenue for an attack. The servers are protected behind firewalls but it was thought there would be one less potential vulnerability.

Is there any other way of finding the number of healthy backends?

Regards Glen

From: Guido Bakker [mailto:guido.bakker at gmail.com]
Sent: Tuesday, 23 November 2010 5:33 PM
To: Glen Kelly
Cc: varnish-misc at varnish-cache.org
Subject: Re: Finding out number of healthy backends

We build a nagios check using:

varnishadm -T localhost:6082 debug.health | grep \ is

This works fine.
2010/11/22 Glen Kelly <Glen.Kelly at fire.tas.gov.au<mailto:Glen.Kelly at fire.tas.gov.au>>
Is there any way of using varnishstat to determine the number of healthy backends?

I currently use 'varnishstat -1 -f n_backend' but this only returns the number of backends, not the number of healthy backends.

I am using Nagios to monitor our environment and want to be able to monitor when we lose a backend. I already am monitoring the backends directly so I have that covered but I want to also monitor when varnish thinks it has lost a backend. i.e. monitoring at multiple levels

If this is not current achievable how do I go about requesting this feature to be added to varnish?

Regards Glen

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P Do you need to print this? Consider the environment, prevent paper waste.

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