[RHUI4] Repository sync failed, error "pulpcore-worker: pulp: backoff:ERROR: Giving up download_wrapper(...) after 5 tries (aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host cdn.redhat.com:443

Solution Verified - Updated -

Issue

  • Repository sync failed. Error below is observed in pulp logs:
pulpcore-worker:pulp: backoff:ERROR: Giving up download_wrapper(...) after 5 tries (aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host cdn.redhat.com:443 ssl:default [Name or service not known])

Environment

  • Red Hat Update Infrastructure (RHUI) 4.x

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