How to Monitor AWS Lambda Logs Using CloudWatch & Kinesis Firehose
Blog post from OpenObserve
Monitoring AWS Lambda logs is crucial for tracking performance, detecting errors, and optimizing resource usage. This guide outlines the process of setting up an AWS Lambda function to process files and log events, subsequently sending these logs to OpenObserve via CloudWatch and Amazon Kinesis Data Firehose. The setup includes creating a Lambda function that processes file metadata, logs events at various levels, and allows dynamic log verbosity through environment variables. It then details the configuration of Kinesis Firehose to deliver logs from CloudWatch to OpenObserve, including creating a delivery stream, configuring backup settings, and establishing a subscription filter for CloudWatch Logs. The guide also emphasizes testing the Lambda function with realistic scenarios to ensure proper log generation and transmission. Finally, it highlights the advantages of using Kinesis Data Firehose for a scalable log monitoring pipeline and hints at future discussions on alternative methods like Lambda Extensions.
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