To view log data Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/. In the navigation pane, choose Log groups. For Log Groups, choose the log group to view the streams.
Full Answer
How to search and analyze log data in Cloudwatch Logs insights?
To quickly search and analyze the log data, we can run a query in CloudWatch Logs Insights. Here we will create the export task for exporting logs from a log group.
How do I create a CloudWatch log group?
When you install the CloudWatch Logs agent on an Amazon EC2 instance using the steps in previous sections of the Amazon CloudWatch Logs User Guide, the log group is created as part of that process. You can also create a log group directly in the CloudWatch console.
How to analyze Amazon Kinesis logs using Cloudwatch Logs insights?
Amazon Kinesis Data Streams automatically retries throttled service API calls. To quickly search and analyze the log data, we can run a query in CloudWatch Logs Insights. Here we will create the export task for exporting logs from a log group.
How does the subscription filter work in Cloudwatch Logs?
The subscription filter immediately starts the flow of real-time log data from the chosen log group to the Kinesis stream: Once we set up the subscription filter, CloudWatch Logs forwards all the incoming log events that match the filter pattern to the Kinesis stream.
Where can I find CloudWatch logs?
To view log data Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/ . In the navigation pane, choose Log groups. For Log Groups, choose the log group to view the streams. In the list of log groups, choose the name of the log group that you want to view.
How do I get logs from AWS CloudWatch?
To collect logs from your Amazon EC2 instances and on-premises servers into CloudWatch Logs, AWS offers two options: Recommended – The unified CloudWatch agent. It enables you to collect both logs and advanced metrics with one agent. It offers support across operating systems, including servers running Windows Server.
How do I view AWS logs?
To see your log data, sign in to the AWS Management Console, and open the CloudWatch console. In the left navigation pane, choose the Logs tab. Find your log group in the list of groups and open the log group. Your log group name is the Name that you set when you set up logging in the Amazon OpenSearch Service wizard.
How do I access my CloudWatch app logs?
Validating Custom Logs in Cloudwatch Dashboard Go to Logs –> Log Groups and you will see the log group you mentioned in the agent configuration. Select the log group and you should see your instance identified you mentioned in the config. If you click the instance identifier, it shows all the logs.
How do I view EC2 logs in CloudWatch?
Click on the log group name to see the log streams. Each log stream uses the EC2 instance ID, so you know which EC2 instance logged the data: To search the logs, click the Search Log Group button.
What is AWS CloudWatch logs?
CloudWatch Logs enables you to see all of your logs, regardless of their source, as a single and consistent flow of events ordered by time, and you can query them and sort them based on other dimensions, group them by specific fields, create custom computations with a powerful query language, and visualize log data in ...
How do you retrieve a log?
Learn how to locate logs and system profile....On Windows 7:Launch File Explorer.Click Organize in the menu bar.Select Folder and Search options.Select the View tab.Under Files and Folders > Hidden files and folders, select the option Show hidden files, folders and drives.Click OK.
How do I check my Lambda CloudWatch logs?
You can view logs for Lambda functions using the Lambda console, the CloudWatch console, the AWS Command Line Interface (AWS CLI), or the CloudWatch API....Using the Lambda consoleOpen the Functions page of the Lambda console.Choose a function.Choose Monitor.Choose View logs in CloudWatch.
Where can I find EC2 logs?
Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/ . In the left navigation pane, choose Instances, and select the instance. Choose Actions, Instance Settings, Get System Log.
How do I export AWS CloudWatch logs?
Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/ . In the navigation pane, choose Log groups. On the Log Groups screen, choose the name of the log group. Choose Actions, Export data to Amazon S3.
How do I download AWS logs?
To download and read a log file Open the Amazon S3 console at https://console.aws.amazon.com/s3/ . Choose the bucket and choose the log file that you want to download. Choose Download or Download as and follow the prompts to save the file. This saves the file in compressed format.
How do I query in CloudWatch?
How to query logs?Open CloudWatch Logs Insights.Select a log group.Select a relative or absolute timespan.Type in a query.Press the Run query button.
How do I export AWS logs?
Export log data to Amazon S3 using the AWS CLIStep 1: Create an Amazon S3 bucket. ... Step 2: Create an IAM user with full access to Amazon S3 and CloudWatch Logs. ... Step 3: Set permissions on an Amazon S3 bucket. ... Step 4: Create an export task. ... Step 5: Describe export tasks. ... Step 6: Cancel an export task.
Features
Query your log data – You can use CloudWatch Logs Insights to interactively search and analyze your log data. You can perform queries to help you more efficiently and effectively respond to operational issues. CloudWatch Logs Insights includes a purpose-built query language with a few simple but powerful commands.
Pricing
When you sign up for AWS, you can get started with CloudWatch Logs for free using the AWS Free Tier .
How to Retrieve log data from CloudWatch
Following are the methods that our Support Engineers use to retrieve log data from CloudWatch:
Method 4: Call GetLogEvents or FilterLogEvents
To find log data manually we can use GetLogEvents or FilterLogEvents in the CloudWatch API.
Conclusion
To conclude, we saw the steps that our Support Techs follow to Retrieve log data from CloudWatch for our customers.
Create a log group in CloudWatch Logs
When you install the CloudWatch Logs agent on an Amazon EC2 instance using the steps in previous sections of the Amazon CloudWatch Logs User Guide, the log group is created as part of that process. You can also create a log group directly in the CloudWatch console.
Send logs to a log group
CloudWatch Logs automatically receives log events from several AWS services. You can also send other log events to CloudWatch Logs using one of the following methods:
View log data sent to CloudWatch Logs
You can view and scroll through log data on a stream-by-stream basis as sent to CloudWatch Logs by the CloudWatch Logs agent. You can specify the time range for the log data to view.
Change log data retention in CloudWatch Logs
By default, log data is stored in CloudWatch Logs indefinitely. However, you can configure how long to store log data in a log group. Any data older than the current retention setting is deleted automatically. You can change the log retention for each log group at any time.
Tag log groups in Amazon CloudWatch Logs
You can assign your own metadata to the log groups you create in Amazon CloudWatch Logs in the form of tags. A tag is a key-value pair that you define for a log group. Using tags is a simple yet powerful way to manage AWS resources and organize data, including billing data.
