How do I access AWS CloudWatch logs?

To view log data

Report the CloudWatch Logs Agent Status

  1. Connect to your EC2 instance. For more information, see Connect to Your Instance in the Amazon EC2 User Guide for Linux Instances.
  2. At a command prompt, type the following command: sudo service awslogs status.
  3. Check the /var/log/awslogs. log file for any errors, warnings, or issues with the CloudWatch Logs agent.

Secondly, how do you write logs in CloudWatch? Configuration for sending OS logs to CloudWatch involves,

  1. Create IAM Role with relevant permission and attach to Linux instance.
  2. Install the CloudWatch agent in the instance.
  3. Prepare the configuration file in the instance.
  4. Start the CloudWatch agent service in the instance.
  5. Monitor the logs using CloudWatch web console.

Likewise, where are CloudWatch logs stored?

Are stored in the highly durable S3 service. Note that the first 5GB of ingested log volume and first 5GB of archived log data is free every month as a part of the free tier. By default, log data is stored in CloudWatch Logs indefinitely.

How do I download AWS CloudWatch logs?

How long CloudWatch logs are stored?

Log Retention – By default, logs are kept indefinitely and never expire. You can adjust the retention policy for each log group, keeping the indefinite retention, or choosing a retention period between 10 years and one day. Archive Log Data – You can use CloudWatch Logs to store your log data in highly durable storage.

What is CloudWatch log?

The Amazon CloudWatch Logs service allows you to collect and store logs from your resources, applications, and services in near real-time.

Are CloudWatch logs encrypted?

CloudWatch Logs encrypts log data in transit and at rest by default. If you need more control over exactly how the data is encrypted, CloudWatch Logs allows you to encrypt log data using an AWS Key Management Services customer master key (CMK).

How do I set up CloudWatch?

To install and configure CloudWatch Logs on an existing Amazon Linux instance Connect to your Amazon Linux instance. Update your Amazon Linux instance to pick up the latest changes in the package repositories. Install the awslogs package. Edit the /etc/awslogs/awslogs. By default, the /etc/awslogs/awscli.

How long do CloudWatch metrics last?

As of November 1st, 2016, the retention window for AWS metrics in CloudWatch has expanded from 14 days to 15 months. Note that the data granularity will be reduced when you widen your range beyond the past 15 days: One minute data points are available for 15 days. Five minute data points are available for 63 days.

What is the use of CloudWatch?

Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS. You can use Amazon CloudWatch to collect and track metrics, collect and monitor log files, set alarms, and automatically react to changes in your AWS resources.

How does CloudWatch alarm work?

Alarms watch metrics and execute actions by publishing notifications to Amazon SNS topics or by initiating Auto Scaling actions. SNS can deliver notifications using HTTP, HTTPS, Email, or an Amazon SQS queue. Your application can receive these notifications and then act on them in any desired way.

What is the difference between CloudWatch and CloudTrail?

The Difference between CloudWatch and CloudTrail CloudWatch focuses on the activity of AWS services and resources, reporting on their health and performance. On the other hand, CloudTrail is a log of all actions that have taken place inside your AWS environment.

How do I send CloudTrail logs to CloudWatch?

CloudTrail typically delivers events to your log group within a few minutes of an API call. Open the CloudWatch console at . Choose Logs. Choose the log group that you specified for your trail.

Is CloudWatch free?

You can get started with Amazon CloudWatch for free. Most AWS Services (EC2, S3, Kinesis, etc.) vend metrics automatically for free to CloudWatch. Many applications should be able to operate within these free tier limits.