Gazing at server logs, one sees a minority of clients who appear to have duplicate query traffic coming in: the same URL, milliseconds apart. Chances are the user accidentally doubled her $DEBUGINFOD_URLS somehow, and the client library is dutifully asking the servers TWICE. Bug #27863 reduces the pain on the servers' CPU, but dupe network traffic is still being paid. We should reject sending outright duplicate concurrent traffic.
Author: Noah Sanci <email@example.com>
Date: Fri Jul 9 14:53:10 2021 -0400
debuginfod: PR27983 - ignore duplicate urls