Amazon S3: Strange Error -' Sometimes' SignatureDoesNotMatch, sometimes it does

Question

I am developing code for salesforce. We are using \'Force.com for Amazon Web Services\' App from Appexchange. The app is provided by Amazon.

I am downloading files from

Answer 1

Are you using the Java SDK? Which version?

A bug was introduced in version 1.4.4 I think, and has been fixed in the most recent releases. Once I upgraded to the buggy version, I had intermittent signature problems when using SQS, and I've seen a post on AWS Forums of some people reporting the exact same issue with DynamoDB. Now I upgraded to version 1.4.7 and the bug disappeared.

Maybe you are seeing the same bug!