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https://issues.apache.org/jira/browse/KNOX-464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14192085#comment-14192085
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ASF subversion and git services commented on KNOX-464:
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Commit f1f4fa2239c2218405e19d65bb12f89ee31305e8 in knox's branch
refs/heads/master from [~kevin.minder]
[ https://git-wip-us.apache.org/repos/asf?p=knox.git;h=f1f4fa2 ]
KNOX-464: Location headers have wrong hostname when used behind load balancer
> Location headers have wrong hostname when used behind load balancer
> -------------------------------------------------------------------
>
> Key: KNOX-464
> URL: https://issues.apache.org/jira/browse/KNOX-464
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 0.5.0
> Reporter: Kevin Minder
> Assignee: Kevin Minder
> Priority: Critical
> Fix For: 0.6.0
>
>
> When you make a request like this that is routed through a load balancer
> {code}
> curl -i -u guest:guest-password -X PUT
> 'http://localhost:8080/gateway/default/webhdfs/v1/tmp/LICENSE?op=CREATE'
> {code}
> Knox currently will return something like this
> {code}
> https://backend:8443/gateway/default/webhdfs/data/v1/webhdfs/v1/tmp/LICENSE?_=AAAACAAAABAAAACQccBhGqTbDtfqAt7vzK1H39SnCZo7W14qCIs67ctZAJDXr9fEyJbo1H9AO8prLGdV8Jmz5TO_novslggJwY7E9Vep4eFP0auaxVpfBz4QG-ktSuviEU5aHl8om_SkuGLOwSDjBRZASXrV1huqKU-K_mKkCaPnC0NkCpRQRL0LMkGvB8yrl6_1vNkaoXTxwjm0kp1EhgniovHJVmfcPbjKmmoh-boVy1cj
> {code}
> To avoid confusion the 'backend' in the URL above is in no way correct but is
> in part caused because nginx is sending that value in the Host header. That
> is peculiar to nginx and could be fixed with nginx configuration.
> The issue here is that Knox used the hostname from the Host header and the
> local port. I'm not exactly sure what the right answer it but I'm sure
> mixing is bad. We should either be using the information from the Host
> header or the information from the local endpoint of the socket. The way
> Knox was working before the fix for KNOX-439 was to use the local endpoint
> information so I'm going to fix this issue making that assumption.
> I used nginx to reproduce the issue. This is the final configured I used to
> verify the fix. Note that the 'proxy_redirect' would need to be removed to
> see exactly what Knox is returning and compare to what is shown above.
> {code}
> worker_processes 1;
> events {
> worker_connections 1024;
> }
> http {
> include mime.types;
> default_type application/octet-stream;
> sendfile on;
> keepalive_timeout 65;
> upstream backend {
> server c6402.ambari.apache.org:8443;
> }
> server {
> listen 8080;
> server_name localhost;
> location / {
> proxy_pass https://backend;
> proxy_redirect https://c6402.ambari.apache.org:8443/
> http://$host:$server_port/;
> }
> }
> }
> {code}
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