apignotti
CDCloudflare Developers
•Created by apignotti on 2/27/2025 in #general-help
CDN-introduced data corruption for 206 responses
We have noticed corrupted data being returned from the CDN for 206 responses. We have extensively validated that the upstream server is healthy and has valid data, by checking against known-good backup archives and RAID redundancy.
The URL in question is: https://cjrtnc.leaningtech.com/3_20250225_603/8/jre/lib/resources.jar, but other copies of the same file in different builds seems to be affected too.
The responses contain, as expected,
Content-Range: bytes 0-131071/1121910, since the first 128k of the file were requested.
Intermittently we have noticed data being returned that correspond to a range of the same length, but not starting at 0, but at offset 0x7E22 which is cannot justify off the top of head. This offset was identified by searching for the data in the original file, the header always reports the starting offset being 0.
Please find in attachment a text dump that contains all the relevant information: the file URL, the requested range and the returned data for the good and bad case in BASE64 format.59 replies