On 19.02.2009 19:39, Caldarale, Charles R wrote:
From: Rainer Jung [mailto:[email protected]]
Subject: Re: mod_jk pool/thread/configure questions
Try maxSpareThreads and minSpareThreads.
Do those still work without an Executor? There are no get/set methods for
those attributes in AjpProtocol.java in 6.0.18.
It does work for the AJP connector when not using APR. His stacks show
he is using APR however.
The way the attribute flows should be like this:
org.apache.catalina.connector.Connector:
} else if ("AJP/1.3".equals(protocol)) {
setProtocolHandlerClassName
("org.apache.jk.server.JkCoyoteHandler");
org.apache.jk.server.JkCoyoteHandler
public void setProperty( String name, String value ) {
if( log.isTraceEnabled())
log.trace("setProperty " + name + " " + value );
getJkMain().setProperty( name, value );
properties.put( name, value );
}
org.apache.jk.server.JkMain
forwards properties via the following mapping:
replacements.put("port","channelSocket.port");
replacements.put("maxThreads", "channelSocket.maxThreads");
replacements.put("minSpareThreads",
"channelSocket.minSpareThreads");
replacements.put("maxSpareThreads",
"channelSocket.maxSpareThreads");
...
and channelSocket is
modules.put("channelSocket", "org.apache.jk.common.ChannelSocket");
org.apache.jk.common.ChannelSocket
Example
public void setMaxSpareThreads( int i ) {
if( log.isDebugEnabled()) log.debug("Setting maxSpareThreads "
+ i);
tp.setMaxSpareThreads(i);
}
and tp is
ThreadPool tp=ThreadPool.createThreadPool(true);
with
import org.apache.tomcat.util.threads.ThreadPool;
Which is the traditional thread pool implementing the minSpare and
maxSpare feature.
I hope my analysis is right, but at least it is backed by testing :)
Regards,
Rainer
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