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Posted to cvs@httpd.apache.org by ji...@apache.org on 2006/08/17 21:19:23 UTC
svn commit: r432350 -
/httpd/httpd/branches/2.2.x/docs/manual/mod/mod_proxy.xml
Author: jim
Date: Thu Aug 17 12:19:22 2006
New Revision: 432350
URL: http://svn.apache.org/viewvc?rev=432350&view=rev
Log:
Update the proxy module docs to reflect current reality.
Add in the flush settings, which are part of 2.2.x and
reorder params to be in abc order (to make 'em easier
to find)
Modified:
httpd/httpd/branches/2.2.x/docs/manual/mod/mod_proxy.xml
Modified: httpd/httpd/branches/2.2.x/docs/manual/mod/mod_proxy.xml
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/docs/manual/mod/mod_proxy.xml?rev=432350&r1=432349&r2=432350&view=diff
==============================================================================
--- httpd/httpd/branches/2.2.x/docs/manual/mod/mod_proxy.xml (original)
+++ httpd/httpd/branches/2.2.x/docs/manual/mod/mod_proxy.xml Thu Aug 17 12:19:22 2006
@@ -548,20 +548,6 @@
number of connections will be created on demand. Any connections above
<code>smax</code> are subject to a time to live or <code>ttl</code>.
</td></tr>
- <tr><td>ttl</td>
- <td>-</td>
- <td>Time To Live for the inactive connections above the
- <code>smax</code> connections in seconds. Apache will close all
- connections that has not been used inside that time period.
- </td></tr>
- <tr><td>timeout</td>
- <td><directive>Timeout</directive></td>
- <td>Connection timeout in seconds.
- If not set the Apache will wait until the free connection
- is available. This directive is used for limiting the number
- of connections to the backend server together with <code>max</code>
- parameter.
- </td></tr>
<tr><td>acquire</td>
<td>-</td>
<td>If set this will be the maximum time to wait for a free
@@ -569,6 +555,20 @@
in the pool the Apache will return <code>SERVER_BUSY</code> status to
the client.
</td></tr>
+ <tr><td>flushpackets</td>
+ <td>off</td>
+ <td>Determines whether the proxy module will auto-flush the output
+ brigade after each "chunk" of data. 'off' means that it will flush
+ only when needed, 'on' means after each chunk is sent and
+ 'auto' means poll/wait for a period of time and flush if
+ no input has been received for 'flushwait' milliseconds.
+ Currently this is in effect only for AJP.
+ </td></tr>
+ <tr><td>flushwait</td>
+ <td>10</td>
+ <td>The time to wait for additional input, in milliseconds, before
+ flushing the output brigade if 'flushpackets' is 'auto'.
+ </td></tr>
<tr><td>keepalive</td>
<td>Off</td>
<td>This parameter should be used when you have a firewall between your
@@ -578,6 +578,20 @@
generally 120ms), and thus prevent the firewall to drop the connection.
To enable keepalive set this property value to <code>On</code>.
</td></tr>
+ <tr><td>loadfactor</td>
+ <td>1</td>
+ <td>Worker load factor. Used with BalancerMember.
+ It is a number between 1 and 100 and defines the normalized weighted
+ load applied to the worker.
+ </td></tr>
+ <tr><td>redirect</td>
+ <td>-</td>
+ <td>Redirection Route of the worker. This value is usually
+ set dynamically to enable safe removal of the node from
+ the cluster. If set all requests without session id will be
+ redirected to the BalancerMember that has route parametar
+ equal as this value.
+ </td></tr>
<tr><td>retry</td>
<td>60</td>
<td>Connection pool worker retry timeout in seconds.
@@ -586,24 +600,33 @@
expires. This enables to shut down the backend server for maintenance,
and bring it back online later.
</td></tr>
- <tr><td>loadfactor</td>
- <td>1</td>
- <td>Worker load factor. Used with BalancerMember.
- It is a number between 1 and 100 and defines the normalized weighted
- load applied to the worker.
- </td></tr>
<tr><td>route</td>
<td>-</td>
<td>Route of the worker when used inside load balancer.
The route is a value appended to seesion id.
</td></tr>
- <tr><td>redirect</td>
+ <tr><td>status</td>
<td>-</td>
- <td>Redirection Route of the worker. This value is usually
- set dynamically to enable safe removal of the node from
- the cluster. If set all requests without session id will be
- redirected to the BalancerMember that has route parametar
- equal as this value.
+ <td>Single letter value defining the initial status of
+ this worker: 'D' is disabled, 'S' is stopped
+ and 'E' is in an error state. Status can be set (which is the default)
+ by prepending with '+' or cleared by prepending with '-'.
+ Thus, a setting of 'S-E' sets this worker to Stopped and
+ clears the in-error flag.
+ </td></tr>
+ <tr><td>timeout</td>
+ <td><directive>Timeout</directive></td>
+ <td>Connection timeout in seconds.
+ If not set the Apache will wait until the free connection
+ is available. This directive is used for limiting the number
+ of connections to the backend server together with <code>max</code>
+ parameter.
+ </td></tr>
+ <tr><td>ttl</td>
+ <td>-</td>
+ <td>Time To Live for the inactive connections above the
+ <code>smax</code> connections in seconds. Apache will close all
+ connections that has not been used inside that time period.
</td></tr>
</table>
@@ -612,24 +635,23 @@
<code>balancer://</code> then a virtual worker that does not really
communicate with the backend server will be created. Instead it is responsible
for the management of several "real" workers. In that case the special set of
- parameters can be add to this virtual worker.
+ parameters can be add to this virtual worker. See <module>mod_proxy_balancer</module>
+ for more information about how the balancer works.
</p>
<table>
<tr><th>Parameter</th>
<th>Default</th>
<th>Description</th></tr>
<tr><td>lbmethod</td>
- <td>-</td>
+ <td>byrequests</td>
<td>Balancer load-balance method. Select the load-balancing scheduler
method to use. Either <code>byrequests</code>, to perform weighted
request counting or <code>bytraffic</code>, to perform weighted
traffic byte count balancing. Default is <code>byrequests</code>.
</td></tr>
- <tr><td>stickysession</td>
- <td>-</td>
- <td>Balancer sticky session name. The value is usually set to something
- like <code>JSESSIONID</code> or <code>PHPSESSIONID</code>,
- and it depends on the backend application server that support sessions.
+ <tr><td>maxattempts</td>
+ <td>1</td>
+ <td>Maximum number of failover attempts before giving up.
</td></tr>
<tr><td>nofailover</td>
<td>Off</td>
@@ -637,17 +659,20 @@
error state or disabled. Set this value to On if backend servers do not
support session replication.
</td></tr>
+ <tr><td>stickysession</td>
+ <td>-</td>
+ <td>Balancer sticky session name. The value is usually set to something
+ like <code>JSESSIONID</code> or <code>PHPSESSIONID</code>,
+ and it depends on the backend application server that support sessions.
+ </td></tr>
<tr><td>timeout</td>
<td>0</td>
<td>Balancer timeout in seconds. If set this will be the maximum time
to wait for a free worker. Default is not to wait.
</td></tr>
- <tr><td>maxattempts</td>
- <td>1</td>
- <td>Maximum number of failover attempts before giving up.
- </td></tr>
</table>
+ <p>A sample balancer setup</p>
<example>
ProxyPass /special-area http://special.example.com/ smax=5 max=10<br />
ProxyPass / balancer://mycluster stickysession=jsessionid nofailover=On<br />