How do I access my CloudWatch log stream?

1. In the navigation pane, choose Log groups.
2. For Log Groups, choose the name of the log group containing the log stream to search.
3. For Log Streams, choose the name of the log stream to search.
4. Under Log events, enter the filter syntax to use.

Accessing CloudWatch You can access CloudWatch using any of the following methods: Amazon CloudWatch console – https://console.aws.amazon.com/cloudwatch/ AWS CLI – For more information, see Getting Set Up with the AWS Command Line Interface in the AWS Command Line Interface User Guide.

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.

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.

1. Use subscription filters to stream log data to another receiving source in real time.
2. Run a query with CloudWatch Logs Insights.
3. Export log data to Amazon Simple Storage Service (Amazon S3) for batch use cases.

Step 4: Create an export task 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.

1. Go to the Triggers tab of your Lambda function.
2. Select Add Trigger.
3. In the Add Trigger prompt, click the box as instructed and select CloudWatch Logs from the drop-down menu.
4. Select a CloudWatch Log Group to add to your function. …
5. Add a Filter Name to your trigger.

1. In the navigation pane, choose Logs, and then choose Logs Insights. …
2. In the Select log group(s) drop down, choose one or more log groups to query. …
3. (Optional) Use the time interval selector to select a time period that you want to query.

CloudWatch Logs lets you monitor and troubleshoot your systems and applications using your existing system, application and custom log files. With CloudWatch Logs, you can monitor your logs, in near real time, for specific phrases, values or patterns.

1. Via the CloudWatch logs, find the log group for the function, and click Search Events.
2. Set the date/time to a little bit before the error occurred.
3. Enter a keyword you think will appear in the error.

1. Create and configure an Amazon EC2 instance.
2. Install the CloudWatch Agent.
3. Create the CloudWatch Agent configuration file.
4. Configure Apache HTTP Server.

1. Open the Functions page of the Lambda console.
2. Choose a function.
3. Choose Monitor. A graphical representation of the metrics for the Lambda function are shown.
4. Choose View logs in CloudWatch.

The latest AWS CLI has a CloudWatch Logs cli, that allows you to download the logs as JSON, text file or any other output supported by AWS CLI.

Use one of the following methods to get console output. 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, Monitor and troubleshoot, Get system log.

1. Choose Data Firehose in the navigation pane.
2. On the navigation bar, choose an AWS Region.
3. Choose a delivery stream name to go to the delivery stream details page.
4. Choose Error Log to view a list of error logs related to data delivery failure.

1. Create a custom ec2 IAM role with Cloudwatch log write access.
2. Install Cloudwatch logs ec2 agent.
3. Configure log sources in the Cloudwatch agent configuration file.
4. Start the agent with the configuration file.
5. Validate logs in Cloudwatch dashboard.

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.

Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/. In the navigation pane, choose Metrics. Select the DynamoDB namespace. You can also use the CLI to get the metrics for a given time period.

CloudWatch Logs Insights enables you to interactively search and analyze your log data in Amazon CloudWatch Logs. 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.

Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL. Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you run. … This makes it easy for anyone with SQL skills to quickly analyze large-scale datasets.

To view available metrics by category (console) Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/ . In the navigation pane, choose Metrics. Choose the EC2 metric namespace. Select a metric dimension (for example, Per-Instance Metrics).

Go to the AWS CloudWatch console and click on Logs at the left most; select the CloudTrail Log group that we just created earlier, and click on Actions and select Stream to Amazon Elasticsearch Service.

1. In the navigation pane, choose Logs, and select the log group that contains your flow log. …
2. Select the log stream that contains the ID of the network interface for which to view the flow log records.

1. Make sure you have sufficient permissions to create or specify an IAM role. …
2. Create a new trail or specify an existing one. …
3. Create a log group or specify an existing one.
4. Specify an IAM role. …
5. Attach a role policy or use the default.

To output logs from your function code, you can use the print method , or any logging library that writes to stdout or stderr . The following example logs the values of environment variables and the event object. The Python runtime logs the START , END , and REPORT lines for each invocation.