I?m software developer for web applications (STRUTS) and we are using Jakarta
Tomcat (4.1.30 / 4.1.31).
We make performance tests for our web application with the JMeter Tool.
Standard Configuration (server.xml) if you download the Tomcat package.
Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8080" minProcessors="5" maxProcessors="75"
enableLookups="true" redirectPort="8443"
acceptCount="100" debug="0" connectionTimeout="20000"
useURIValidationHack="false" disableUploadTimeout="true"
A configuration (server.xml) with this Tomcat crashes or is not available for a
very long time.
Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8080" minProcessors="5" maxProcessors="75"
enableLookups="false" redirectPort="8443"
acceptCount="50" debug="99" connectionTimeout="10000"
useURIValidationHack="false" disableUploadTimeout="true"
We have Tomcat crashes with more than 40, 50, ? threads and more. The server is
not available for more than 20 minutes.
As you can see we made changes in the server.xml (acceptCount. enableLookups,
connectionTimeout, debug). The important attribute acceptCount and
connectionTimeout has been changed. If still more simultaneous requests are
received, they are stacked up inside the server socket created by the
Connector, up to the configured maximum (the value of the acceptCount). Any
further simultaneous requests will receive connection refused errors, until
resources are available to process them.
Now my question is:
Is the configuration (not standard) the problem that tomcat crashes with more
than 40 users?
Thank you in advance.
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