Spring Boot Multithreading and Async in HINDI | Multithreading in Spring Boot Tutorial in Hindi

Multithreading in spring boot is achieved using Async annotation and using Task Executor Service class. Multithreading in spring boot is similar to multitasking, except that it allows numerous threads to run concurrently rather than processes. A thread in Java is a sequence of programmed instructions that are managed by the operating system's scheduler. Threads can be utilized in the background to conduct complex activities without interfering with the main program.

What is the use of Multithreading in Spring Boot Applications
1. To save time by completing numerous actions at once.
2. To avoid blocking the user(s) while one operation is executed.
3. If an exception occurs in one thread, other threads are unaffected.
4. CPU use can be maximized by running two or more threads concurrently.
5. Breaking up larger issues into smaller, faster computations helps reduce reaction time.

What tis Multithreading in Spring Boot using Async Configuration?
To run methods in a different thread, use the Spring Async annotation i.e. Async annotation. To configure Async, a configuration class must be used to describe the thread pool that all these methods will use. The annotation EnableAsync must be present in this configuration class. Spring defines the Thread Pool setup using a ThreadPoolTaskExecutor. If a service defines many Async methods but just one AsyncConfig, the thread pool is shared across all Async methods.

What is Thread Pool?
Thread Pools are made up of one or more threads, and a queue, where tasks are held until a thread is ready to complete them.
1 Core Pool Size - The number of threads that are always present in the core pool.
2 Max Pool Size - the most threads that can be produced.
3 Keep Alive Time - the amount of time idle threads are permitted to exist.
4 Allow Core Thread Timeout - Normally false, but when set to true, core threads can be destroyed after the keep-alive timer expires.

What is ThreadPoolTaskExecutor?
TaskExecutor is a standard Spring interface, so consult the Spring User Guide for details of available implementations. The simplest multi-threaded TaskExecutor is a SimpleAsyncTaskExecutor.

** TIMESTAMPS **
0:00 Welcome to Spring Boot Multithreading using Async
1:06 Spring Boot Multithreading Flow Diagram
3:58 Code Implementation of Spring Boot Multithreading
6:05 Writing Spring Boot Configuration Class for Task Executor Service
8:15 Writing Business Layer classes
9:25 Writing Spring Boot Async Class
12:27 Writing Spring Boot Runner Class
14:32 Running Spring Boot Multithreading Application
14:48 Understanding the running of threads via logs
18:19 GitHub Repository Project & Link
18:41 Summary

#springboot #multithreading #async

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