Closed ssanthanam185 closed 3 years ago
Presto Uses "X-Forwarded-Host" to determine the nextURi & InfoURI. These headers are set correctly on the outgoing Proxy request as we are using ProxyServlet.Transparent . Reference : https://github.com/lyft/presto-gateway/blob/master/proxyserver/src/main/java/com/lyft/data/proxyserver/ProxyServletImpl.java
This PR explicitly sets the Host Header to the host name of the backend presto cluster vs preserving the Host of the gateway itself. This ensures that we dont run into 400 Bad request Issues if there is an LB fronting the backend Presto cluster.
👀 @reverson
ssanthanam185
commented
3 years ago
Presto Uses "X-Forwarded-Host" to determine the nextURi & InfoURI. These headers are set correctly on the outgoing Proxy request as we are using ProxyServlet.Transparent . Reference : https://github.com/lyft/presto-gateway/blob/master/proxyserver/src/main/java/com/lyft/data/proxyserver/ProxyServletImpl.java
This PR explicitly sets the Host Header to the host name of the backend presto cluster vs preserving the Host of the gateway itself. This ensures that we dont run into 400 Bad request Issues if there is an LB fronting the backend Presto cluster.