If your application performs operations or workflows that take a long time to complete, what service can the Elastic Beanstalk environment do for you?
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A. B. C. D.Answer - A.
Elastic Beanstalk simplifies this process by managing the Amazon SQS queue and running a daemon process on each instance that reads from the queue for you.
When the daemon pulls an item from the queue, it sends an HTTP POST request locally to http://localhost/ with the contents of the queue message in the body.
All that your application needs to do is perform the long-running task in response to the POST.
For more information on Elastic Beanstalk managing worker environments, please visit the below URL:
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features-managing-env-tiers.htmlWhen an application performs operations or workflows that take a long time to complete, it can become problematic for the Elastic Beanstalk environment. Specifically, the Elastic Beanstalk environment can become bogged down by these long-running processes, causing resource contention and potentially leading to performance issues.
To address this problem, Elastic Beanstalk provides a solution that involves managing an Amazon SQS queue and running a daemon process on each instance. Here's how it works:
The application sends a message to the Amazon SQS queue indicating that a long-running process needs to be executed.
A daemon process running on each instance constantly polls the SQS queue for messages.
When the daemon process detects a message, it retrieves the necessary data from the message and begins executing the long-running process.
Once the process is complete, the daemon process updates the status of the process in the application's database or other data store.
By using an Amazon SQS queue and a daemon process running on each instance, Elastic Beanstalk can ensure that long-running processes don't impact the overall performance of the environment. The use of an SQS queue also allows for easy scaling of the environment as demand for the application grows.
Option A is therefore the correct answer to the question. Option B (managing an Amazon SNS topic and running a daemon process on each instance) is not a valid solution because SNS is a notification service and is not designed for managing long-running processes. Option C (managing Lambda functions and running a daemon process on each instance) is also not a valid solution because Lambda functions are designed to run short-lived, event-driven code and are not suited to managing long-running processes. Finally, option D (managing the ELB and running a daemon process on each instance) is also not a valid solution because the ELB is a load balancer and is not designed for managing long-running processes.