A company hosts a batch processing application on AWS Elastic Beanstalk with instances that run...

Amazon Web Services DVA-C02 Question Answer

A company hosts a batch processing application on AWS Elastic Beanstalk with instances that run the most recent version of Amazon Linux. The application sorts and processes large datasets. In recent weeks, the application's performance has decreased significantly during a peak period for traffic. A developer suspects that the application issues are related to the memory usage. The developer checks the Elastic Beanstalk console and notices that memory usage is not being tracked.

How should the developer gather more information about the application performance issues?

Configure the Amazon CloudWatch agent to push logs to Amazon CloudWatch Logs by using port 443.

Configure the Elastic Beanstalk .ebextensions directory to track the memory usage of the instances.

Configure the Amazon CloudWatch agent to track the memory usage of the instances.

Configure an Amazon CloudWatch dashboard to track the memory usage of the instances.

Explanation:

To monitor memory usage in Amazon Elastic Beanstalk environments, it's important to understand that default Elastic Beanstalk monitoring capabilities in Amazon CloudWatch do not track memory usage, as memory metrics are not collected by default. Instead, the Amazon CloudWatch agent must be configured to collect memory usage metrics.

Why Option C is Correct:

The Amazon CloudWatch agent can be installed and configured to monitor system-level metrics such as memory and disk utilization.

To enable memory tracking, developers need to install the CloudWatch agent on the Amazon Elastic Compute Cloud (EC2) instances associated with the Elastic Beanstalk environment.

After installation, the agent can be configured to collect memory metrics, which can then be sent to CloudWatch for further analysis.

How to Implement This Solution:

Install the CloudWatch Agent:Use .ebextensions or AWS Systems Manager to install and configure the CloudWatch agent on the EC2 instances running in the Elastic Beanstalk environment.

Modify CloudWatch Agent Configuration:Create a config.json file that specifies memory usage tracking and other desired metrics.

Enable Metrics Reporting:The CloudWatch agent can push the metrics to CloudWatch, where they can be monitored.

Why Other Options are Incorrect:

Option A: Configuring the agent to push logs is not sufficient to track memory metrics. This option addresses logging but not system-level metrics like memory usage.

Option B: The .ebextensions directory is used to customize Elastic Beanstalk environments but does not directly track memory metrics without additional configuration of the CloudWatch agent.

Option D: Configuring a CloudWatch dashboard will only visualize the metrics that are already being collected. It will not enable memory usage tracking.

AWS Documentation References:

Amazon CloudWatch Agent Overview

Elastic Beanstalk Customization Using .ebextensions

Monitoring Custom Metrics

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