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update transformation

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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@106759 13f79535-47bb-0310-9956-ffa450edef68
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André Malo
2004-11-27 21:01:50 +00:00
parent 4e8aca8027
commit 6327050722
2 changed files with 89 additions and 34 deletions
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121
docs/manual/mod/mod_proxy_balancer.html.en
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@@ -80,49 +80,104 @@ load balancing </td></tr>
<p>If some workers are disabled, the others will
still be scheduled correctly.</p>
<div class="example"><pre>
for each worker in workers
<div class="example"><pre><code>for each worker in workers
worker lbstatus += worker lbfactor
total factor += worker lbfactor
if worker lbstatus &gt; candidate lbstatus
candidate = worker
candidate = worker
candidate lbstatus -= total factor
candidate lbstatus -= total factor</code></pre></div>
</pre></div>
<p>If a balancer is configured as follows:</p>
<pre><code>
worker a b c d
lbfactor 25 25 25 25
lbstatus 0 0 0 0
</code></pre>
<table><tr><th>worker</th>
<th class="data">a</th>
<th class="data">b</th>
<th class="data">c</th>
<th class="data">d</th></tr>
<tr><th>lbfactor</th>
<td class="data">25</td>
<td class="data">25</td>
<td class="data">25</td>
<td class="data">25</td></tr>
<tr><th>lbstatus</th>
<td class="data">0</td>
<td class="data">0</td>
<td class="data">0</td>
<td class="data">0</td></tr>
</table>
<p>And <var>b</var> gets disabled, the following schedule is produced:</p>
<pre><code>
lbstatus <strong>-50</strong> 0 25 25
lbstatus -25 0 <strong>-25</strong> 50
lbstatus 0 0 0 <strong>0</strong>
(repeat)
</code></pre>
<p>That is it schedules: a c d a c d a c d ...</p>
<p>The following asymmetric configuration works as one would expect:</p>
<pre><code>
worker a b
lbfactor 70 30
lbstatus <strong>-30</strong> 30
lbstatus 40 <strong>-40</strong>
lbstatus <strong>10</strong> -10
lbstatus <strong>-20</strong> 20
lbstatus <strong>-50</strong> 50
lbstatus 20 <strong>-20</strong>
lbstatus <strong>-10</strong> 10
lbstatus <strong>-40</strong> 40
lbstatus 30 <strong>-30</strong>
lbasatus <strong>0</strong> 0
(repeat)
</code></pre>
<table><tr><th>worker</th>
<th class="data">a</th>
<th class="data">b</th>
<th class="data">c</th>
<th class="data">d</th></tr>
<tr><th>lbstatus</th>
<td class="data"><em>-50</em></td>
<td class="data">0</td>
<td class="data">25</td>
<td class="data">25</td></tr>
<tr><th>lbstatus</th>
<td class="data">-25</td>
<td class="data">0</td>
<td class="data"><em>-25</em></td>
<td class="data">50</td></tr>
<tr><th>lbstatus</th>
<td class="data">0</td>
<td class="data">0</td>
<td class="data">0</td>
<td class="data"><em>0</em></td></tr>
<tr><td class="data" colspan="5">(repeat)</td></tr>
</table>
<p>That is it schedules: <var>a</var> <var>c</var> <var>d</var>
<var>a</var> <var>c</var> <var>d</var> <var>a</var> <var>c</var>
<var>d</var> ...</p>
<p>The following asymmetric configuration works as one would expect:</p>
<table><tr><th>worker</th>
<th class="data">a</th>
<th class="data">b</th></tr>
<tr><th>lbfactor</th>
<td class="data">70</td>
<td class="data">30</td></tr>
<tr><td class="data" colspan="2">&nbsp;</td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>-30</em></td>
<td class="data">30</td></tr>
<tr><th>lbstatus</th>
<td class="data">40</td>
<td class="data"><em>-40</em></td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>10</em></td>
<td class="data">-10</td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>-20</em></td>
<td class="data">20</td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>-50</em></td>
<td class="data">50</td></tr>
<tr><th>lbstatus</th>
<td class="data">20</td>
<td class="data"><em>-20</em></td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>-10</em></td>
<td class="data">10</td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>-40</em></td>
<td class="data">40</td></tr>
<tr><th>lbstatus</th>
<td class="data">30</td>
<td class="data"><em>-30</em></td></tr>
<tr><th>lbstatus</th>
<td class="data"><em>0</em></td>
<td class="data">0</td></tr>
<tr><td class="data" colspan="3">(repeat)</td></tr>
</table>
<p>That is after 10 schedules, the schedule repeats and 7 <var>a</var>
are selected with 3 <var>b</var> interspersed.</p>

2
docs/manual/mod/mod_proxy_balancer.xml.ja
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@@ -1,7 +1,7 @@
<?xml version="1.0" encoding="iso-2022-jp"?>
<!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
<?xml-stylesheet type="text/xsl" href="../style/manual.ja.xsl"?>
<!-- English Revision: 105989 (outdated: 106723) -->
<!-- English Revision: 105989 (outdated: 106758) -->
<!--
Copyright 2002-2004 The Apache Software Foundation