Appendix K: Troubleshooting
To troubleshoot known issues with the Serverless Image Handler solution, AWS recommends
customers set the AWS Lambda environment variable LOG_LEVEL to DEBUG. This will enable you to see detailed error logs in Amazon CloudWatch. For more information
about modifying environment variables, see Appendix I.
Common Errors
Malformed URL
This error can result if the security key provided in user request and the one provided to Thumbor config do not match.
Resolution
Verify that both security keys match. For more information, see Appendix E.
Body Size is Too Long
If the image is larger than 6 MB, in your Amazon CloudWatch Logs you will receive the following error: body size is too long. For more information see, AWS Lambda limits.
Resolution
Customize your Lambda package to save the resulting image in the Amazon S3 bucket. Currently, the solution requires you to manually update your result storage settings. For more information, see tc_aws result storage.
Data Type is Not Supported
If the data type isn’t supported in the Lambda environment variable for Thumbor config, you will receive this error. For more information, see non-string environment variables.
Resolution
Configure your thumbor.conf file with the specific Thumbor parameter and customize your Lambda package. See allow_environment_variables() for more information.
