Servlets Life Cycle

A servlet life cycle can be defined as the entire process from its creation till the destruction. The following are the paths followed by a servlet

• The servlet is initialized by calling the init () method.

• The servlet calls service() method to process a client's request.

• The servlet is terminated by calling the destroy() method.

• Finally, servlet is garbage collected by the garbage collector of the JVM. Now let us discuss the life cycle methods in details.

Servlets Overview

Java Servlets are programs that run on a Web or Application server and act as a middle layer between a request coming from a Web browser or other HTTP client and databases or applications on the HTTP server.

• Using Servlets, you can collect input from users through web page forms, present records from a database or another source, and create web pages dynamically.

Setup MongoDB ReplicaSet in Simple Steps

Why Replication?

• To keep your data safe
• High (24*7) availability of data
• Disaster Recovery
• No downtime for maintenance (like backups, index rebuilds, compaction)
• Read scaling (extra copies to read from)
• Replica set is transparent to the application