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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..
Explain init(), start(), stop(), and destroy() method? The init() method is known as exactly once in an applet's life, while the applet is first loaded. It's generally used to
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Make a JavaScript jQuery script to fill variables from a remote JSON file I'm in requirement of someone to write and rewrite some JavaScript code that connects to a remote rest
WHY WE USE JAVA PROGRAMMING LANGUAGE EXPLAIN IT
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List down the Analytical Engine's elements name An analytical engine elements are as follows: Input Memory Processor Output.
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