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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Use the health check page, not varnish itself. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The health checks hit a page and checks if the webapp can build
a page within a reasonable time frame. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Put something in it to notify you that it failed.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Stefan Caunter :: Senior Systems Administrator :: TOPS<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>e: scaunter@topscms.com :: m: (416) 561-4871<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>www.thestar.com www.topscms.com<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> varnish-misc-bounces@varnish-cache.org
[mailto:varnish-misc-bounces@varnish-cache.org] <b>On Behalf Of </b>Guido
Bakker<br>
<b>Sent:</b> November-23-10 1:33 AM<br>
<b>To:</b> Glen Kelly<br>
<b>Cc:</b> varnish-misc@varnish-cache.org<br>
<b>Subject:</b> Re: Finding out number of healthy backends<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>We build a nagios check using:<br>
<br>
varnishadm -T localhost:6082 debug.health | grep \ is<br>
<br>
This works fine.<o:p></o:p></p>
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<p class=MsoNormal>2010/11/22 Glen Kelly <<a
href="mailto:Glen.Kelly@fire.tas.gov.au">Glen.Kelly@fire.tas.gov.au</a>><o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU>Is there any way of using varnishstat to determine the number of
healthy backends?<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU> <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU>I currently use ‘varnishstat -1 -f n_backend’ but this only returns
the number of backends, not the number of healthy backends.<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU> <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU>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<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU> <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU>If this is not current achievable how do I go about requesting this
feature to be added to varnish?<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU> <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU>Regards Glen<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-AU> <o:p></o:p></span></p>
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<p class=MsoNormal><a
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target="_blank" title=""><b><span lang=EN-US style='text-decoration:none'>Error!
Filename not specified.</span></b></a><o:p></o:p></p>
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