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Roundrobin overwrites request URL #40
Description
It seems that using roundrobin in a way that is similar to the example in README does not work correctly -- or at least it does not work the way I expect it to.
We have the following code:
fwd, _ := forward.New()
lb, _ := roundrobin.New(fwd)
lb.UpsertServer(url1)
lb.UpsertServer(url2)
s := &http.Server{
Addr: ":8080",
Handler: lb,
}
s.ListenAndServe()Where:
- url1 = "http://backend1:8080/"
- url2 = "http://backend2:8080/"
Let's consider the following scenario:
- Server receives request: http://server/path/to/a/file.txt
- Roundrobin gets a suitable server from the list using code and sets the URL for forwarder in: https://github.com/vulcand/oxy/blob/master/roundrobin/rr.go#L72
- The URL for forwarder is either: "http://backend1:8080/" or "http://backend2:8080/", while I would have expected it to be: "http://backendN:8080/path/to/a/file.txt"
I cannot see how the code is supposed to be used to achieve a trivial reverse proxy setup.
Is there something I've missed? :)
Activity
mikaelnousiainen commentedon Apr 4, 2016
Ok, I found out that forward uses RequestURI to replace url.Opaque, but in this case the RequestURI should contain also the host, which is not the case, so I still don't understand how this is supposed to work considering the following:
"RequestURI is the unmodified Request-URI of the Request-Line (RFC 2616, Section 5.1) as sent by the client".
Additionally, URL.String() ends up with scheme:opaque?query#fragment.
lunemec commentedon Jan 19, 2017
This is dupliacte with #57. This issue was first, but the #57 has some proposed solutions. This should be closed as dupliacte and solved there.