(Last Updated On: December 14, 2018)

What is Amazon CloudWatch Logs?

Amazon Web Services provides secure, high availability, and economical cloud computing services. Though, we should always prepare for the possible breakdown of AWS service. Therefore, we need an alert option present in our system. There is an AWS tool present in our system for monitoring our Cloud-based applications. CloudWatch is the name, and the work suits its name. Cloudwatch is a valuable monitoring service tool for your application that you run on AWS. Moreover, CloudWatch is free to use with the option to pay for more detailed control.

Benefits of Amazon CloudWatch


CloudWatch lets you monitor resources instantly and automatically without installing or configure any software. It allows you to watch the performance and traffic load of resources. CloudWatch also allows you to collect and graph various custom resource metrics. Moreover, It allows you to set specific alarms for possible metric breach. With CloudWatch, you can take action such as sending notifications. You can even terminate a process to handle the issue automatically. By putting API request, your application can define and submit custom metrics and monitored by Cloudwatch.

Amazon CloudWatch let you watch metrics from Amazon EC2 instances for CPU utilization, data transfer, and disk usage. Also, it costs no additional charge. With pay an extra charge, CloudWatch produces you more monitoring details with higher resolution and metric aggregation for EC2 instances.

Amazon CloudWatch allows you to watch metrics for Amazon DynamoDB tables, Amazon EBS volumes, and Amazon RDS DB instances. Also, you can monitor Amazon Elastic MapReduce job flows, Elastic Load Balancers, Amazon SQS queues, Amazon SNS topics. CloudWatch allows you to watch much more metrics with no extra additional cost.

You can send and store metrics that are relevant to application’s performance to help you troubleshoot and find trends. Additionally, CloudWatch Logs allow you to monitor and troubleshoot systems and applications existing system, application, and custom log files.

Free vs Paid CloudWatch

CloudWatch is free to use. However, if you pay a little more for detailed monitoring, you get monitoring at a higher frequency of one-minute intervals. In the free plan, you can watch only frequency of five-minute intervals. You can access to a larger number of pre-defined metrics when you are paying. You can also monitor all parameters over groups of similar resources.

Therefore, make use of Amazon Cloudwatch to get more visibility and take proper actions in case of hardware failure or performance issues.