Submitted by: Angela D Jones

If you have a plan in hosting a website using Tomcat Java, make sure you check certain things with your service providers. Tomcat Java is also called Apache Tomcat, even called Jakarta Tomcat. It was founded by Apache Software Foundation it s an open source container. It utilizes a pure Java Server environment for Java Servlet with the Java Server Pages (JSP).

To configure and manage operations of Apache Tomcat has all the software and tools, it can even be configures by XML files. Don t confuse Tomcat with Apache Web server, they are completely different. Apache web server is a C extension of a HTTP server. Depending on the server operating system, tomcat is installed as an addon in Cpanel or Plesk. Make sure you get this enabled this plugin feature while hosting the web.

How Tomcat Interacts With the JVM

Each servlet is a standard Java class with some special elements that allow it to respond to HTTP requests, when servlets allows the JVM to handle each request in a separate Java thread. Main function of Tomcat is to pass HTTP request right component and generate results from the correct location once the JVM processes. Performance of the Tomcat Hosting will be affected if the Java Virtual Machine can t serve the purpose of the Tomcat request.

How to pick the correct JVM

There are many JVMs available; the majority of the users pick Sun Microsystem s Hotspot JVM, reason being its adaptive optimization features help in handling the Tomcat s request very effectively. You can try installing Tomcat on two different JVM for certain feature in the JDK in case to see which solution suits best. Pick one that provide awesome performance and the most features in the site on the launch.

In changing the JAVA_HOME environment variable in the chosen JVMs JDK, you need to edit catalina.sh in the Tomcat s bin folder. Configuration of the Tomcat to run on the server is a simple process.

You want the best of your JVM set the configuration to as closely as possible to match the real-world. Always have the latest version of the JVM, so that you can quantify what needs to be done in order to obtain accurate information for the benchmarks.

Memory management is on the major area one has to look into while setting up the JVM for Tomcat Hosting from wasting memory and even server power to process requests. You can tune these processes when in need by using JAVA_OPTS Xmx and Xmx in handling heap memory. In case of higher maximum heap memory use Xmx switch, if JVM invoked garbage collection too frequently. Xms switch never allows the JVM to reallocate more memory.

Green and Native are the two types of Java threads which JVM handles. Green threads are managed entirely by user with Java Virtual Machine, whereas Native threads are docket by the Operating system. When it comes to synchronization and thread activation, Green thread holds the key in the performance. If in case you are running a lot of Input and Output application, Native thread offer best performance. Pick which suits you the best for your business.

About the Author: InstantAppz allows you to easily add or deploy any of the most popular web applications available through your control panel. No more having to worry about the hassles of configuring the software installs.

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