select * from section<?xml version='1.0' encoding='iso-8859-1' ?>
<article>
<id><![CDATA[30]]>></id>
<author><nick><![CDATA[Juan M. Casillas]]>></nick>
<email><![CDATA[juanm.casillas@jmcresearch.com]]>></email>
></author>
<title><![CDATA[Polling parameters]]>></title>
<subtitle><![CDATA[Overview]]>></subtitle>
<body><![CDATA[&lt;h3&gt;Polling parameters&lt;/h3&gt;

&lt;p&gt;
Load Balancer has a polling plugin that allows you to configure 
per-server specific tests. This tests are use to determine the 
server?s status (recheability, response time, general stats ...)
with this, the other layers can determine what are the best
server for the specific algorithm used. This module support
multiple tests, that is, the different submodules can be
stacked, so you can do a battery of tests (this tests can 
use the results from the previous one, so you can create
complex checks for your servers).
&lt;/p&gt;

&lt;p&gt;
To configure this
module, you have to put all the configuration directives
under the &lt;tt&gt;&lt;b&gt;polling&lt;/b&gt;&lt;/tt&gt; tag. 
This directive has the following parameters:
&lt;/p&gt;

&lt;p&gt;
&lt;table border=1 width=100% cellpadding=5 class=thinborder&gt;

&lt;tr bgcolor=&quot;#f0f0f0&quot;&gt;
&lt;td class=thinborder_title&gt;&lt;b&gt;Option&lt;/b&gt;&lt;/td&gt;
&lt;td class=thinborder_title width=70%&gt;&lt;b&gt;Description&lt;/b&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;tr&gt;&lt;td&gt;interval&lt;/td&gt;
&lt;td&gt;
This parameter configures the number of seconds between polls. This
value can be a float (e.g. 0.3). Note that this is the time between
the whole battery of polls. 
&lt;/td&gt;&lt;/tr&gt;

&lt;tr&gt;&lt;td&gt;&lt;/td&gt;
&lt;td&gt;
&lt;b&gt;poll_modules&lt;/b&gt;&lt;br&gt;
This tag inside the polling configuration directive configure the 
different poll modules you can add to the poll interface. 
This modules will be applied in the same order you insert 
them inside &lt;tt&gt;polling&lt;/tt&gt; tag. There is no configuration
options for this tag.
&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;/p&gt; 


&lt;p&gt;
You can found plugin specific details &amp; configuration directives 
for the generic &amp; http polling plugin &lt;a href=&quot;lb/plugins/0.html&quot;&gt;here.&lt;/a&gt;
&lt;/p&gt;]]>></body>
<keywords><![CDATA[load balancer  polling parameters]]>></keywords>
<stamp><![CDATA[1063914288]]>></stamp>
<updated><![CDATA[1070911507]]>></updated>
<language><![CDATA[0]]>></language>
<sections><section><![CDATA[Load Balancer]]></section>
></sections>
<site><![CDATA[http://www.jmcresearch.com]]>></site>
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