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The clustering regulates high scalability and availability. The basic considerations for servlet clustering are:
1. Objects opened in a session could be serializable to support in-memory replication of sessions. Also consider the problem of serializing very big objects. Test the performance to make sure it is running.
2. Design for idempotence. Failure of an impatient or a request users clicking again may result in duplicate requests being given. So the Servlets could be relay to tolerate duplicate requests.
3. Avoid using static and instance variables in write and read mode because different instances can exist on different JVMs or on different operating system. Any state could be held in an external instance such as a database.
4. Avoid sending values in a ServletContext. It is not serializable and also the different resources may exist in different JVMs.
5. Avoid using java.io.* because the files cannot exist on all backend machines #question..
A JMS client that makes and sends messages.
How to get all the registered objects in a rmiregistry? Ans) Using list method of Naming Class.
How can i draw E-R diagram
Platform independence is the key feature of Java during runtime. Syntax of java is same to the popular object oriented languages such as C and C++. Java program can eliminate most
Write a program that takes as input a sequence of transactions of the form
Viewing a User's Wall Where your project allows you to view a user's profile, your ZHTML must provide the following capabilities: 1. Provide a Wall for that user profile, dis
What is an intelligent system? Intelligent system is a SW programs or SW and HW systems designed to perform complex tasks employing strategies in which mimic some aspect of hum
what is the use of marker interface?
Prog. Concepts - Project The objective is to implement a menu - based system for Bank Accounts in order to simulate a very simple banking system. Many structures have to be declare
The software or script to scan automotive ads Project Description: Looking for a company that made the script or application to search through pages of listings of automotive
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