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ViBiOh merged 3 commits into from
Dec 12, 2025
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docs(aws): Adding source references for lambda forwarder #33296

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docs(aws): Adding source references for lambda forwarder
ViBiOh Dec 11, 2025
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Update content/en/logs/guide/lambda-logs-collection-troubleshooting-g…
ViBiOh Dec 11, 2025
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fixup! docs(aws): Adding source references for lambda forwarder
ViBiOh Dec 11, 2025
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36 changes: 34 additions & 2 deletions content/en/logs/guide/lambda-logs-collection-troubleshooting-guide.md
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Expand Up @@ -12,7 +12,7 @@ If you don't see logs forwarded from a Datadog forwarder Lambda function in the

1. Navigate to the [Log Explorer's Live Tail view][2].
2. In the search bar, use a filter to limit the Live Tail view to just the logs coming from your Lambda function. Some common search queries are:
* By source: the source is often set to `source:lambda`, `source:aws` or `source:cloudwatch` but you can find other possible sources in the `parse_event_source` function in the [Lambda function][3].
* By source: the source is often set to `source:lambda`, `source:aws`, `source:s3` or `source:cloudwatch` but you can find other possible sources in the table below.
* By forwarder name: the Lambda function adds a `forwardername` tag to all the logs it forwards. You can filter on this tag by searching for `forwardername:*` or `forwardername:<FORWARDER_FUNCTION_NAME>`.
3. If you do see the logs in the Live Tail, but not in the Log Explorer, that means your log index has some [exclusion filters][4] set up. These filters are filtering out your logs.
4. If you don't see the logs in the Live Tail, the logs are not reaching Datadog.
Expand Down Expand Up @@ -88,6 +88,39 @@ For CloudWatch log group, you can use the following metrics within the Datadog p

4. Set environment variable "DD_LOG_LEVEL" to "debug" on the forwarder Lambda function to enable the debugging logs for further debugging. The debugging logs are quite verbose; remember to disable it after debugging.

## Log forwarder sources references

| AWS Service | Source Filter |
| -------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
| API Gateway | `source:apigateway` |
| AppSync | `source:appsync` |
| Batch | `source:batch` |
| Bedrock | `source:bedrock` |
| Carbonblack | `source:carbonblack` |
| CloudFront | `source:cloudfront` |
| CloudTrail | `source:cloudtrail` |
| CodeBuild | `source:codebuild` |
| DocumentDB | `source:docdb` |
| Database Migration Service | `source:dms` |
| EKS | `source:eks`, `source:kubernetes.audit`, `source:kube-scheduler`, `source:kube-apiserver`, `source:kube-controller-manager`, `source:aws-iam-authenticator` |
| Elastic Load Balancing | `source:elb` |
| FSX | `source:aws.fsx` |
| Lambda | `source:lambda` |
| MWAA | `source:mwaa` |
| Network Firewall | `source:network-firewall` |
| OpenSearch | `source:opensearch` |
| Parallel Computing Service | `source:apigateway` |
| RDS | `source:rds`, `source:postgresql`, `source:mariadb`, `source:mysql` |
| Redshift | `source:redshift` |
| Redshift Serverless | `source:redshift-serverless` |
| Route 53 | `source:route53` |
| S3 | `source:s3` |
| Step Functions | `source:stepfunction` |
| Systems Manager | `source:ssm` |
| Transit Gateway | `source:transitgateway` |
| Verified Access | `source:verified-access` |
| VPC | `source:vpc` |
| WAF | `source:waf` |

## Further reading

Expand All @@ -96,7 +129,6 @@ For CloudWatch log group, you can use the following metrics within the Datadog p

[1]: https://docs.datadoghq.com/help
[2]: https://docs.datadoghq.com/logs/live_tail/#live-tail-view
[3]: https://github.com/DataDog/datadog-serverless-functions/blob/master/aws/logs_monitoring/lambda_function.py
[4]: https://docs.datadoghq.com/logs/indexes/#exclusion-filters
[5]: https://console.aws.amazon.com/lambda/home
[6]: https://docs.datadoghq.com/integrations/amazon_lambda/?tab=awsconsole#metrics
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