Author: rjung
Date: Fri Oct 3 12:45:41 2008
New Revision: 701513
URL: http://svn.apache.org/viewvc?rev=701513&view=rev
Log:
Clarify a bit, how our watchdig thread works
and what it does. Keep description for IIS and
Apache consistent.
Modified:
tomcat/connectors/trunk/jk/xdocs/reference/apache.xml
tomcat/connectors/trunk/jk/xdocs/reference/iis.xml
Modified: tomcat/connectors/trunk/jk/xdocs/reference/apache.xml
URL:
http://svn.apache.org/viewvc/tomcat/connectors/trunk/jk/xdocs/reference/apache.xml?rev=701513&r1=701512&r2=701513&view=diff
==============================================================================
--- tomcat/connectors/trunk/jk/xdocs/reference/apache.xml (original)
+++ tomcat/connectors/trunk/jk/xdocs/reference/apache.xml Fri Oct 3 12:45:41
2008
@@ -196,15 +196,25 @@
</p></attribute>
<attribute name="JkWatchdogInterval" required="false"><p>
This directive configures the watchdog thread interval in seconds.
-The workers are maintained periodically on this interval.
-If you set this directive to "0", watchdog thread will not be
-created and standard on request maintenance will be applied.
+The workers are maintained periodically by a background thread
+running periodically every watchdog_interval seconds. Worker maintenance
+checks for idle connections, corrects load status and is able
+to detect backend health status.
+<br/>
+The maintenance only happens, if since the last maintenance at
+least <a href="workers.html"><code>worker.maintain</code></a>
+seconds have passed. So setting the JkWatchdogInterval
+much smaller than <code>worker.maintain</code> is not useful.
<br/>
The default value is 0 seconds, meaning the watchdog thread
-will not be created inside each child process.
+will not be created, and the maintenance is done in combination
+with normal requests instead.
+<br/>
+This directive is only allowed once. It must be put into
+the global part of the configuration.
<br/>
This directive has been added in version 1.2.27 of mod_jk.
-It is available only for httpd 2.0 and above using APR libraries
+It is available only for httpd 2.x and above using APR libraries
including thread support.
</p></attribute>
<attribute name="JkLogFile" required="false"><p>
@@ -356,7 +366,7 @@
</source>
<p>
-Since JK 1.2.3 for Apache 2.0 and JK 1.2.16 for Apache 1.3 this can also
+Since JK 1.2.3 for Apache 2.x and JK 1.2.16 for Apache 1.3 this can also
be used for piped logging:
</p>
Modified: tomcat/connectors/trunk/jk/xdocs/reference/iis.xml
URL:
http://svn.apache.org/viewvc/tomcat/connectors/trunk/jk/xdocs/reference/iis.xml?rev=701513&r1=701512&r2=701513&view=diff
==============================================================================
--- tomcat/connectors/trunk/jk/xdocs/reference/iis.xml (original)
+++ tomcat/connectors/trunk/jk/xdocs/reference/iis.xml Fri Oct 3 12:45:41 2008
@@ -179,6 +179,26 @@
</p>
<p>This directive has been added in version 1.2.24</p>
</attribute>
+<attribute name="watchdog_interval" required="false"><p>
+A DWORD value representing the watchdog thread interval in seconds.
+The workers are maintained periodically by a background thread
+running periodically every watchdog_interval seconds. Worker maintenance
+checks for idle connections, corrects load status and is able
+to detect backend health status.
+</p>
+<p>
+The maintenance only happens, if since the last maintenance at
+least <a href="workers.html"><code>worker.maintain</code></a>
+seconds have passed. So setting the watchdog_interval
+much smaller than <code>worker.maintain</code> is not useful.
+</p>
+<p>
+The default value is 0 seconds, meaning the watchdog thread
+will not be created, and the maintenance is done in combination
+with normal requests instead.
+</p>
+<p>This directive has been added in version 1.2.27</p>
+</attribute>
</attributes>
</section>
<section name="Using a properties file for configuration">
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