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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 mechanism for converting among string-based markup generated by JavaServer Faces UI components and server-side Java objects.
write a program that counts the number of occurrences of the string in the n-th Padovan string P(n). program in java // aakash , suraj , prem sasi kumar kamaraj college
This assignment has two main objectives. It aims to establish a basic familiarity with the Java API (Java Thread class) for creating multithreaded Java application, and the Java ne
What are Checked and UnChecked Exception? A checked exception is some subclass of Exception (or Exception itself), excluding class RuntimeException and its subclasses. Making a
RMI uses a layered architecture; every of the layers could be increased or replaced without affecting the rest of the system. The details of layers can be summarised as follows:
WebSphere - Weblogic and Apache: Building/Installation and maintenance of Solaris and Linux machines. Exposure to Sun Hardware : Sunfire v880,v890.V440,X4600
What is Constructors? Explain with an example? A constructor forms a new instance of the class. It initializes all the variables and does any work essential to prepare the clas
Luminous Jewels - The Polishing Game Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various lum
Write down HTML or JavaScript code for the following requirements: Declare an Array along with the identifier SUBJECT having length 5. Assign subsequent values to the array par
List down the names of two array techniques available in JavaScript. The two techniques thata rae available in java script is: 1. sort( ) [sorts elements within alphabetical
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