Posted on May, 8th 2009

Enabling and Analyzing Amazon CloudFront Request Logfiles

Users of the Amazon Cloudfront CDN (Content Delivery Network) can now enable request logging for their distributions. The logs are stored in S3. The user can then download the logs and analyze them using a standard logfile analyzer (e.g. urchin).

Step 1: Enabling Request Logging

We found that using CloudBerry Explorer for Amazon S3 is the easiest way to enable request logging. Simply install the software, enter your AWS account data and you will see your S3 buckets. Right click a bucket that is distribution-enabled, choose the "logging" tab and enable the "Use CloudFront logging" checkbox (you have to specify an S3 bucket to store the data).

Step 2: Waiting for Data

After some time you will see zipped logfiles in the specified S3 bucket.

Step 3: Download and Analyzing the Data

The final step is to download the data and send it through your favorite logfile analyzer.

Enabling and Analyzing Amazon CloudFront Request Logfiles

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