Mod_Proxy (+ AJP) - Some/any docs yet?

Thu, 19 Aug 2004 05:05:44 -0700 

Greetings All,
Attached (possibly) is hopefully a 'start' to getting some documentation
going on using the new Proxy modules. Corrections/additions welcome.
Any clues on getting Apache to talk to a single 'Tomcat' would be greatly
appreciated... just to get the /admin/ off to TC and bring up the TC admin
login page would be a big progress.
TIA,
Norm
PS In case this mailer doesn't like attachments:
-----------------------------------------------
<html>
<p>Dated 18August, 2004</p>
<h3>Creating a Balancer</h3>
<p>Coding example:</p>
<pre>
&lt;Proxy balancer://&lt;balancer_name&gt;&gt;
   BalancerMember  &lt;method&gt;://&lt;IP/DNS&gt;:&lt;port&gt; [key=value]
[key=value] [....]
   ....
&lt;/Proxy&gt;
</pre>
<p>where:</p>
<ul>
<li>&lt;balancer_name&gt is any practical name for the balancer,</li>
<li>&lt;method&gt; identifies the protocol to use by the BalancerMember
(http, ftp, ajp),</li>
<li>&lt;IP/DNS&gt;:&lt;port&gt; identifies the location of the proxy
machine.</li>
</ul>
<p>The "key" can be any of the following:</p>
<table border=1>
<tr><th>Key Name</th><th>Description</th><th>Constraint(s)</th></tr>
<tr><td>loadfactor</td><td>&nbsp;</td><td>Must be between 1..100
(percent)</td></tr>
<tr><td>retry</td><td>&nbsp;</td><td>Must be at least one second</td></tr>
<tr><td>ttl</td><td>&nbsp;</td><td>Must be at least one second</td></tr>
<tr><td>min</td><td>&nbsp;</td><td>Must be a positive number</td></tr>
<tr><td>max</td><td>&nbsp;</td><td>Must be a positive number</td></tr>
<tr><td>smax</td><td>&nbsp;</td><td>Must be a positive number</td></tr>
<tr><td>acquire</td><td>&nbsp;</td><td>Must be at least one
milli-second</td></tr>
<tr><td>timeout</td><td>&nbsp;</td><td>Must be at least one second</td></tr>
<tr><td>iobuffersize</td><td>&nbsp;</td><td>Greater or equal to
AP_IOBUFSIZE</td></tr>
<tr><td>receivebuffersize</td><td>&nbsp;</td><td>Must be >= 512 bytes, or 0
for system default</td></tr>
<tr><td>keepalive</td><td>&nbsp;</td><td>Must be On|Off</td></tr>
<tr><td>route</td><td>&nbsp;</td><td>val</td></tr>
<tr><td>redirect</td><td>&nbsp;</td><td>val</td></tr>
</table>
<p>The current configuration of "balancers" can be seen at the bottom of the
/server-status/ page,
if mod_status is loaded in the Apache Web Server.</p>
</html>
-----------------------------------------------

Dated 18August, 2004

Creating a Balancer

Coding example:

<Proxy balancer://<balancer_name>>
   BalancerMember  <method>://<IP/DNS>:<port> [key=value] [key=value] [....]
   ....
</Proxy>

where:

  • <balancer_name> is any practical name for the balancer,
  • <method> identifies the protocol to use by the BalancerMember (http, ftp, ajp),
  • <IP/DNS>:<port> identifies the location of the proxy machine.

The "key" can be any of the following:





Key NameDescriptionConstraint(s)


loadfactor Must be between 1..100 (percent)


retry Must be at least one second


ttl Must be at least one second


min Must be a positive number


max Must be a positive number


smax Must be a positive number


acquire Must be at least one milli-second


timeout Must be at least one second


iobuffersize Greater or equal to AP_IOBUFSIZE


receivebuffersize Must be >= 512 bytes, or 0 for system default


keepalive Must be On|Off


route val


redirect val





The current configuration of "balancers" can be seen at the bottom of the /server-status/ page,
if mod_status is loaded in the Apache Web Server.

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