How to increase max threads in Tomcat 4.1.12?

["Tuan H. Le" <tu...@phsadc.com>]

Hi,

When we ran a stress test on our application, it hang Tomcat service. We found an INFO message in stderr a message below

INFO: All threads are busy, waiting. Please increase maxThreads or check the servlet status200 200

I have tried to increase the maxProcessors in \conf\server.xml from 200 to 500 and 500 to 1000, but that didn't help. We ran a stress test with 200 concurrent users. Here's our sample setting for 500 max processor

    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector" acceptCount="10" bufferSize="2048" connectionTimeout="20000" debug="0" enableLookups="true" maxProcessors="500" minProcessors="5" port="8080" protocolHandlerClassName="org.apache.coyote.http11.Http11Protocol" proxyPort="0" redirectPort="8443" scheme="https" secure="true" tcpNoDelay="true" useURIValidationHack="false">
      <Factory className="org.apache.catalina.net.DefaultServerSocketFactory"/>
    </Connector>
    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector" acceptCount="10" bufferSize="2048" connectionTimeout="20000" debug="0" enableLookups="true" maxProcessors="500" minProcessors="5" port="8009" protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" proxyPort="0" redirectPort="8443" scheme="https" secure="true" tcpNoDelay="true" useURIValidationHack="false">
      <Factory className="org.apache.catalina.net.DefaultServerSocketFactory"/>
    </Connector>

How do we solve/increase the maxThreads issue?

Thanks,
Tuan


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