Find Every Solution: Load Balancing, Clustering & Session

I am using Apache Tomcat Application server in which my Servlet/JSP pages are deployed. If The number of requests per seconds goes around 1000 How tomcat will handle? How to do load balancing? What are the alternatives?

This is the configuration in server.xml file.
<Connector port=”8080″
maxHttpHeaderSize=”8192″
maxThreads=”150″
minSpareThreads=”25″
maxSpareThreads=”75″
enableLookups=”false”
redirectPort=”8443″
acceptCount=”100″
connectionTimeout=”20000″
disableUploadTimeout=”true


/>

What does these values Indicate?