Description
Load balancer (Netscalar) probes receives HTTP 405 Method Not Allowed errors from Knox with HEAD request. Doing a HEAD requests is the preferred (and common) way to probe status of a service from LB's.
Test as follows:
curl -k --head https://gateway.domain.com:8443/gateway/default/ambari/
Knoxgateway-audit.log gives this error:
17/09/25 17:46:04 ||60da43b2-97c3-4d32-ac10-b6d566a69e90|audit|AMBARIUI||||authorization|uri|/gateway/default/ambari|success|
17/09/25 17:46:04 ||60da43b2-97c3-4d32-ac10-b6d566a69e90|audit|AMBARIUI||||access|uri|/gateway/default/ambari|success|Response status: 405
17/09/25 17:46:04 ||36137fd2-3643-4225-943d-1213cb0bfafd|audit|||||access|uri|/gateway/default/yarngateway/default/ambari|unavailable|Request method: HEAD
17/09/25 17:46:04 ||36137fd2-3643-4225-943d-1213cb0bfafd|audit|||||access|uri|/gateway/default/yarngateway/default/ambari|success|Response status: 404
17/09/25 17:46:09 ||1e4f6bce-cbf7-43da-858d-d43166fa1dcb|audit|||||access|uri|/gateway/default/yarngateway/default/ambari|unavailable|Request method: HEAD
The error is coming from Knox. When doing the same curl directly to Ambari, we get an HTTP 200 back.
Attachments
Issue Links
- is related to
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KNOX-1864 Knox returns HTTP 405 Method Not Allowed error with HTTP PATCH method
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- Closed
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