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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..
Spring comprises of seven modules. They are.. a) The core container b) Spring context c) Spring AOP d) Spring DAO e) Spring ORM f) Spring Web module g) Sprin
How can you define a consistent web design? Why is it needed? A consistent excellent designed website is generated for common public which permits users to attain what they nee
AskWrite an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a message could be “I love
You have recently joined a games company. The SQA manager has given you the task of improving the code quality of simple games. This is a standard task which the SQA manager gives
what is function
Explain operator precedence in java ? It's probable to combine multiple arithmetic expressions in one statement. For example the subsequent line adds the numbers one by five:
Differentiate between onLoad and onUnload? Onload executes the particular javascript code when a latest document is loaded into a windows. ONUnload executes he particular javas
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Advantages offered by SOA Splits down the silos of data, functionalities, and applications into enterprise services. Adapts an application to changing business requirements
For this assignment, you will write a Java windowed application to do online quiz on general knowledge and the application also displays the quiz result. Overview of the applic
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