Pods returns a 502 or 400 error when accessing via the application route after upgrading the RHOCP cluster to version 4.14
Issue
- After upgrading the RHOCP cluster to version 4.14, the external access to pods is lost when they expose a route with duplicated encoding headers.
- On OpenShift 4.12 or 4.13, an alert is firing:
DuplicateTransferEncodingHeadersDetected(Severity: Warning). - What is
haproxy_backend_duplicate_te_header_totalmetric in Prometheus?
Environment
- Red Hat OpenShift Container Platform (RHOCP)
- 4.12
- 4.13
- 4.14
- HAProxy 2.6
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