Hello,
I try to use ngx.location.capture_multi to send multiple post requests:
upstream _server1 {
server server1:80;
}
upstream _server2 {
server server2:80;
}
server {
listen 10.0.0.254:80;
server_name server.internal;
location / {
content_by_lua '
upstream_servers = {{"/server1", {copy_all_vars = true, method =
ngx.HTTP_POST}},
{"/server2", {copy_all_vars = true, method =
ngx.HTTP_POST}},
}
for i, v in ipairs(upstream_servers) do
upstream_servers[i][1] = upstream_servers[i][1] …
ngx.var.request_uri
end
results = {ngx.location.capture_multi(upstream_servers)}
status = 200
output = “”
for i, result in ipairs(results) do
output = output … result.body
if status < result.status then
status = result.status
end
end
ngx.say({output})
ngx.exit(status)
';
}
location /server1 {
rewrite ^/[^/]*/(.*) /$1 break;
proxy_pass http://_server1;
proxy_set_header X-Forwarded-For $remote_addr;
}
location /server2 {
rewrite ^/[^/]*/(.*) /$1 break;
proxy_pass http://_server2;
proxy_set_header X-Forwarded-For $remote_addr;
}
}
The post will be send to server1, but the second one won’t be send to
server2. Afer I while the request terminates with the timeout error 408.
When I switch the servers in the table uptream_servers, the request will
be passed to server2, but not to server1. Again, a timeout occurs. When
I replace ngx.HTTP_POST with ngx.HTTP_GET, both requests will be send.
Is it not possible to use ngx.location.capture_multi like that?
matthias