Monitor AWS IoT using CloudWatch Logs

When AWS IoT logging is enabled, AWS IoT sends progress events about each message as it passes from your devices through the message broker and rules engine. In the CloudWatch console, CloudWatch logs appear in a log group named AWSIotLogs.

For more information about CloudWatch Logs, see CloudWatch Logs. For information about supported AWS IoT CloudWatch Logs, see CloudWatch Logs AWS IoT log entries.

Viewing AWS IoT logs in the CloudWatch console

Note

The AWSIotLogsV2 log group is not visible in the CloudWatch console until:

• You've enabled logging in AWS IoT. For more info on how to enable logging in AWS IoT, see Configure AWS IoT logging

• Some log entries have been written by AWS IoT operations.

To view your AWS IoT logs in the CloudWatch console

1. Browse to https://console.aws.amazon.com/cloudwatch/. In the navigation pane, choose Log groups.

2. In the Filter text box, enter AWSIotLogsV2 , and then press Enter.

3. Double-click the AWSIotLogsV2 log group.

4. Choose Search All. A complete list of the AWS IoT logs generated for your account is displayed.

5. Choose the expand icon to look at an individual stream.

You can also enter a query in the Filter events text box. Here are some interesting queries to try:

• { $.logLevel = "INFO" }

  Find all logs that have a log level of INFO.

• { $.status = "Success" }

  Find all logs that have a status of Success.

• { $.status = "Success" && $.eventType = "GetThingShadow" }

  Find all logs that have a status of Success and an event type of GetThingShadow.

For more information about creating filter expressions, see CloudWatch Logs Queries.